1 / 5

Product

industrial data rf cable seriesMIL-DTL-24643/29 · NAVSEA50 Ω ± 2 Ω · Double Cu BraidLSZH XLPO · -30 to +105 °C

LS1S50MU / LS1S50MUS / LS1SMU MIL-DTL-24643 LS1S50MU Low-SmokeMIL-DTL-24643/29 50 Ω low-smoke zero-halogen US Navy shipboard RF coaxial cable

US Navy 50 Ω LSZH shipboard RF coaxial cable (LS1S50MU / LS1S50MUS / LS1SMU) per MIL-DTL-24643/28 with a bare or silver-plated copper core, cross-linked polyolefin dielectric, double tinned/silver copper braids (> 90 dB screening), and naval LSZH jacket.

Approved
Flame-retardant
Low-EMC design
EMC screen
Order designation
M24643/29-01UO (LS1S50MU)
Outer Ø ≈
10.80 mm
Wall thickness
1.15 mm
Total weight ≈
178.0 kg/km
Min. bend R (fixed)
86 mm
All sizes (8)
Request a quoteDatasheetWhatsApp
Engineering reply in 2 business hoursCut-to-length export drumsEN 10204 3.1 certificate per drum
Impedance
50 Ω ± 2 Ω
MIL-DTL-24643/29 RF coaxial
Velocity (VoP)
66 %
101 pF/m solid PE dielectric
Shielding
Double Cu braid
Two high-coverage copper braids
Outer jacket
LSZH XLPO
Cross-linked low-smoke polyolefin
Temperature
-30…+105 °C
Shipboard continuous duty rating
Armor option
LS1S50MUS
Braided aluminum wire armor

Typical values for this cable type, based on MIL-DTL-24643/29 (US Navy Shipboard 50 Ω Low-Smoke Coaxial Cable) — confirmed in the datasheet and quotation for your order.

Application fit

Is LS1S50MU / LS1S50MUS / LS1SMU right for your machine?

Specify LS1S50MU and LS1S50MUS for naval surface combatants, submarines, coast guard cutters, and offshore command vessels requiring MIL-DTL-24643/29 50 Ω RF feeders with zero-halogen low-smoke fire safety.

Offshore platform & shipboard deck trays

Suitable

Cross-linked LSZH XLPO jacket and optional braided aluminum armor (LS1S50MUS) resist salt spray, vibration, and impact.

VFD inverter to AC motor screened feeder

Suitable

Dual concentric bare/silver-plated copper braids provide ≥ 85–90 dB RF isolation in congested CIC radar and HF/VHF/UHF radio trunks.

Switchgear & control cabinet wiring

Suitable

replaces PVC-jacketed RG-214/U and RG-213/U inside enclosed naval compartments where toxic HCl gas emission is prohibited.

Motorised monospiral reel

Not suitable

Designed for fixed shipboard cableways and bulkhead transits, not dynamic crane reeling drums.

Use LMR-400-UF UltraFlex
Typical machinesUS Navy & Allied Surface CombatantsSubmarine C4ISR & Radio RoomsShipboard Radar & EW Mast TrunksCoast Guard & Patrol VesselsOffshore Platform Telecom Shelters

Construction

Layer by layer

MIL-DTL-24643/29 shipboard 50 Ω coax: stranded bare/silvered copper center conductor, solid PE dielectric, double copper wire braids, LSZH XLPO jacket, plus optional Al braid armor (LS1S50MUS).

1234
Schematic, not to scale — generated from the layer data
#LayerMaterial & reference
1Stranded bare or silver-plated copper conductor7-strand annealed bare or silver-coated copper (Ø 2.26 mm, 7×0.75 mm, RG-214/RG-213 core class)High vibration fatigue resistance and low RF skin-depth loss
2Solid polyethylene (PE) RF dielectricHigh-purity low-loss solid polyethylene (Ø 7.24 mm, 66 % VoP, 101 pF/m)Stable 50 Ω ± 2 Ω characteristic impedance and 5,000 V RMS dielectric withstand
3Double copper wire braid RF shieldsTwo concentric bare or silver-plated copper wire braids (≥ 95 % combined optical coverage)Superior transfer impedance and shipboard EMC compartment isolation
4Cross-linked low-smoke zero-halogen (LSZH XLPO) jacketThermoset cross-linked polyolefin compound (black, MIL-DTL-24643 acid-gas & smoke qualified)Passes IEEE 1202 / MIL-DTL-24643 vertical tray flame test with < 0.5 % halogen content

M24643/29-01UO (LS1S50MU)

Unarmored 50 Ω low-smoke zero-halogen shipboard coaxial cable (Ø 10.80 mm)

M24643/29-01AU (LS1S50MUS)

Braided aluminum wire armored 50 Ω shipboard coaxial cable (Ø 12.45 mm) for exposed cableways

Technical data

Ratings & operating limits

Typical values: Typical values for this cable type, based on MIL-DTL-24643/29 (US Navy Shipboard 50 Ω Low-Smoke Coaxial Cable). Values for your order are confirmed in the datasheet and quotation.

Electrical

Characteristic impedance
50 Ω ± 2 Ω
Nominal capacitance
101.0 pF/m (30.8 pF/ft)
Velocity of propagation
66 % nominal (solid PE dielectric)
Max. operating voltage
3,700 V RMS (5,000 V RMS dielectric test)
Attenuation @ 100 / 400 / 1000 MHz
7.5 / 15.7 / 29.5 dB/100m

Thermal

Operating temperature
-30 °C to +105 °C (XLPO jacket rating)
RF core thermal limit
+85 °C continuous PE dielectric
Smoke index & acid gas
MIL-DTL-24643 low-smoke & < 0.2 % halogen

Mechanical

Center conductor
7×0.75 mm (13 AWG, Ø 2.26 mm) stranded Cu
Overall diameter
10.80 mm (LS1S50MU) · 12.45 mm (LS1S50MUS)
Min. bending radius
8 × OD (unarmored) · 10 × OD (armored)

Resistance

Flame propagation
MIL-DTL-24643 / IEEE 1202 vertical tray flame
Oil, fuel & salt water
Resists NATO F-76 fuel, lube oil & salt fog
Watertightness class
Non-watertight (dry/damp interior compartments)

Reference standards

Military specification
MIL-DTL-24643/29 (M24643/29-01UO & -01AU)
Core RF reference
MIL-DTL-17 (RG-213 / RG-214 low-smoke equivalent)
RoHS & REACH
RoHS 3 & REACH SVHC compliant

Identification

Outer jacket colour
Black cross-linked polyolefin (unpainted or painted)
Surface marking
M24643/29-01UO LS1S50MU 50 OHM SHIPBOARD LOW SMOKE
Customs tariff (HS)
8544.20

Sizes

8 standard configurations (LS1S50MU / LS1S50MUS / LS1SMU)

Engineering dimensions, impedance, propagation velocity, and electrical ratings for LS1S50MU / LS1S50MUS / LS1SMU per MIL-DTL-24643/29 (US Navy Shipboard 50 Ω Low-Smoke Coaxial Cable).

Dimensions & weights
Order designationImpedance / sizeConductor & dielectricWall ≈
mm		Outer Ø ≈
mm		Metal
kg/km		Weight ≈
kg/km		Min. bend R
fixed mm		Enquiry
Standard LS1S50MU / LS1S50MUS / LS1SMU configurations
M24643/29-01UO (LS1S50MU)50 Ω · 13 AWG Unarmored7×0.75 Cu + PE + 2×Braid1.1510.8096.0178.086
M24643/29-01AU (LS1S50MUS)50 Ω · 13 AWG Al-Armored7×0.75 Cu + 2×Braid + Al1.1512.45124.0225.0125
LS1SMU Compact 50 Ω50 Ω · 20 AWG Unarmored19×0.18 Cu + PE + 2×Braid0.855.5028.052.044
LS1SMUS Compact Armored50 Ω · 20 AWG Al-Armored19×0.18 Cu + 2×Braid + Al0.857.1042.078.071
LS1S50MU-F Foam 50 Ω50 Ω · Ø 2.74 Foam PECu Ø 2.74 + Foam PE + LSZH1.1510.6088.0155.085
LS1S50MUS-F Foam Armored50 Ω · Ø 2.74 Al-ArmoredCu Ø 2.74 + Foam + Al Braid1.1512.25115.0202.0123
LS2S50MU Twin 50 Ω2 × 50 Ω · 13 AWGDual 50 Ω Coax Assembly1.4021.80192.0385.0175
LS1S50MWU Watertight50 Ω · 13 AWG WatertightWater-Blocked 50 Ω Coax1.2511.2098.0190.090
  • Typical values for this cable type; dimensions and weights for your order are confirmed in the quotation.
  • Outer diameters and weights are nominal engineering values for LS1S50MU / LS1S50MUS / LS1SMU subject to standard manufacturing tolerances per MIL-DTL-24643/29 (US Navy Shipboard 50 Ω Low-Smoke Coaxial Cable).

Quality & approvals

Testing & inspection

Routine tests on every production length, sample and type tests per batch — documented on an EN 10204 3.1 inspection certificate.

  1. ConductorClass 5 stranding
  2. Spark test100 % in-line
  3. Lay-upCores, earth, fillers
  4. SheathingInner, braid / screen, outer
  5. Electrical testsAC voltage, resistance
  6. DimensionsOD, wall thickness
  7. Inspection documents & dispatchDrum & dispatch
Testing & inspectionTest value / referenceFrequency
Routine tests
Characteristic impedance, return loss (VSWR) & TDR sweep100 % frequency-domain return loss and TDR impedance verification per MIL-DTL-24643/29 (US Navy Shipboard 50 Ω Low-Smoke Coaxial Cable)Every manufactured length
Dielectric spark & high-voltage withstand test100 % in-line spark and AC/DC dielectric withstand per MIL-DTL-24643/29 (US Navy Shipboard 50 Ω Low-Smoke Coaxial Cable)Every spool or drum length
Sample tests
Insertion loss (attenuation), velocity & capacitance checkAttenuation (dB/100m), VoP (%), and capacitance within MIL-DTL-24643/29 (US Navy Shipboard 50 Ω Low-Smoke Coaxial Cable) limitsPer production batch
Screening attenuation, transfer impedance & environmental qualificationQualified to MIL-DTL-24643/29 (US Navy Shipboard 50 Ω Low-Smoke Coaxial Cable) EMC shielding, thermal, and flame/fluid criteriaType qualification

Inspection certificate

Issued with every drum, listing the routine test results for that length.

Product approvals

MIL-DTL-24643/29 (US Navy Shipboard 50 Ω Low-Smoke Coaxial Cable)CE (2014/35/EU) & RoHS 3 (2015/863/EU) CompliantREACH SVHC Compliance Verified

Company certificates

ISO 9001ISO 14001ISO 45001VDE marks approvalUL / cULCE · LVD / EMC

Marking & supply

Ordering & delivery

Sheath marking

TEBAOFLEX M24643/29-01UO LS1S50MU 50 OHM LOW-SMOKE SHIPBOARD COAX
Delivery form
Export wooden drums, flange reels or precision coils
Standard lengths
100 m · 305 m · 500 m · 1000 m (or custom cut lengths)
MOQ
100 m (stock sizes) · 300–500 m (custom build)
Lead time
2–4 weeks ex-works
Incoterms
EXW, FOB, CIF, DAP

Technical documents

Downloads

PDFLS1S50MU / LS1S50MUS / LS1SMU MIL-DTL-24643 LS1S50MU Low-Smoke – technical datasheet8 sizes · construction, technical data, approvalsXLSXLS1S50MU / LS1S50MUS / LS1SMU spec data (Excel)All 8 sizes with dimensions and data, for your BOM or quotation
Revision
2026-10-20
Updated
2026-10-20

FAQ

Questions engineers ask first

Not covered here? Send your drawing — an engineer replies within 2 business hours.

What is the difference between LS1S50MU (M24643/29-01UO) and LS1S50MUS (M24643/29-01AU)?
LS1S50MU (-01UO) is the unarmored 50 Ω shipboard coaxial cable with a cross-linked polyolefin (LSZH XLPO) outer jacket, whereas LS1S50MUS (-01AU) adds an overall braided aluminum wire armor over the jacket for mechanical protection in exposed naval passageways.
Why did the US Navy replace RG-213/U and RG-214/U with LS1S50MU?
Legacy RG-213/U and RG-214/U use polyvinyl chloride (PVC) outer jackets that release dense black smoke and corrosive hydrochloric acid gas in a shipboard fire. LS1S50MU provides the same 50 Ω RF electrical geometry wrapped in a thermoset low-smoke zero-halogen XLPO jacket.
Which RF connectors fit LS1S50MU?
LS1S50MU accepts standard MIL-PRF-39012 Type N, TNC, BNC, and UHF connectors sized for RG-213/U and RG-214/U (0.405–0.425 in jacket diameter).
When should I use LS1S75MU instead of LS1S50MU?
Use LS1S50MU (50 Ω) for HF/VHF/UHF radio transmitters, radar, and GPS feeders; use LS1S75MU (MIL-DTL-24643/30, 75 Ω) for shipboard video, CCTV, sonar display, and IF distribution.

Request a quote

Get an engineering quote for LS1S50MU / LS1S50MUS / LS1SMU

Your selection and application details are copied into the enquiry form below.

01Selected sizes

Use + Add next to a size or configuration.

02Reel & motion

Add your operating conditions here to include them in your enquiry.

03Message for our engineers

LS1S50MU / LS1S50MUS / LS1SMU MIL-DTL-24643 LS1S50MU Low-Smoke

Selected sizes:


Reel & motion:
- Reel type: 
- Drum core diameter (mm): 
- Cable length on drum (m): 
- Travel speed (m/min): 
- Max. acceleration: 
- Cycles per hour: 
- Length and quantity: 
- Ambient temperature: 
- Exposure (outdoor, water, oil, abrasion): 
- Destination country: 
- Equipment and operating conditions:
Send via WhatsApp

Shipboard 75 Ω video coax

LS1S75MU

MIL-DTL-24643/30 75 Ω low-smoke shipboard RF coaxial cable

View productShipboard Cat.5e LAN cable

LSC5OS-4 / LSC5POS-4

MIL-DTL-24643/59 shipboard Cat.5e screened Ethernet cable

View productWatertight Cat.6 Gigabit LAN

LSC6OSW-4

MIL-DTL-24643/65 watertight shipboard Cat.6 Gigabit LAN cable

View productFlexible 50 Ω low-loss coax

LMR-400

Low-loss 50 Ω double-shielded flexible RF coaxial cable

View product
DatasheetRequest a quote