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Product

industrial data rf cable seriesMIL-DTL-24643/59 · Cat.5e LAN100 Ω · 4×2×24 AWG · 100 MHzLSC5OS-4 (SF/UTP) · LSC5POS-4 (S/FTP)

LSC5OS-4 / LSC5POS-4 MIL-DTL-24643 LSC5OS-4 / LSC5POS-4 ShipboardMIL-DTL-24643/59 100 Ω 4-pair 24 AWG Cat.5e LSZH screened shipboard LAN cable

US Navy shipboard Category 5e SF/UTP LAN cable (LSC5OS-4 solid 24 AWG; LSC5POS-4 stranded patch 24/7 AWG) per MIL-DTL-24643/59 with four 100 Ω twisted pairs, overall aluminum/polyester tape plus ≥ 85 % tinned copper braid, and cross-linked naval LSZH jacket.

Approved
Flame-retardant
Low-EMC design
EMC screen
Order designation
M24643/59-01UO (LSC5OS-4)
Outer Ø ≈
7.62 mm
Wall thickness
0.95 mm
Total weight ≈
72.0 kg/km
Min. bend R (fixed)
61 mm
All sizes (8)
Request a quoteDatasheetWhatsApp
Engineering reply in 2 business hoursCut-to-length export drumsEN 10204 3.1 certificate per drum
Impedance
100 Ω ± 15 Ω
1 to 100 MHz Category 5e LAN
Data rate
1000BASE-T
1 Gbps Gigabit Ethernet + PoE+
Pairs / gauge
4 × 2 × 24 AWG
Solid or 7-strand bare/tinned Cu
Shielding
OS or POS
Overall (LSC5OS) or pair+overall
Outer jacket
LSZH XLPO
Cross-linked polyolefin (-30…+105°C)
Voltage rating
300 V RMS
Shipboard interior LAN circuits

Typical values for this cable type, based on MIL-DTL-24643/59 & ANSI/TIA-568 Cat.5e (Shipboard LSZH Screened LAN) — confirmed in the datasheet and quotation for your order.

Application fit

Is LSC5OS-4 / LSC5POS-4 right for your machine?

Specify LSC5OS-4 and LSC5POS-4 for dry interior shipboard local area networks (CANES / ADNS), machinery control rooms, bridge consoles, and combat system racks.

Switchgear & control cabinet wiring

Suitable

Compact 4-pair build (Ø 7.6–8.4 mm) routes easily into high-density naval RJ45 panels and MIL-DTL-38999 RJFTV connectors.

VFD inverter to AC motor screened feeder

Suitable

LSC5POS-4 adds individual Al/PET foil screens on each pair plus an overall ≥ 85 % tinned braid for maximum radar EMI immunity.

Offshore platform & shipboard deck trays

Suitable

Cross-linked low-smoke zero-halogen XLPO jacket passes IEEE 1202 flame testing and resists marine oil, fuel, and vibration.

Immersion & wet locations

Not suitable

LSC5OS-4 / LSC5POS-4 is non-watertight for interior compartments; for watertight bulkhead transits, specify LSC5OSW-4 (MIL-DTL-24643/61).

Use LSC5OSW-4 Watertight
Typical machinesUS Navy CANES & Shipboard IT NetworksCombat System & Bridge ConsolesMarine Propulsion & Damage Control LANsCoast Guard & Auxiliary VesselsNaval Simulator & Shore Integration Labs

Construction

Layer by layer

MIL-DTL-24643/59 Cat.5e LAN build: 4 twisted pairs of 24 AWG copper with polyolefin/fluoropolymer insulation, optional pair foils (POS), overall Al/PET tape + tinned Cu braid, and LSZH XLPO jacket.

12345
Schematic, not to scale — generated from the layer data
#LayerMaterial & reference
124 AWG solid or 7-strand copper conductors4 twisted pairs (8 conductors) of 24 AWG annealed bare or tinned copperMeets TIA-568.2-D 100 m horizontal channel and PoE+ current ratings
2Low-loss polyolefin / fluoropolymer core insulationTIA-568 colour-coded blue/white, orange/white, green/white, brown/white insulation (70 % VoP)Maintains 100 Ω ± 15 Ω impedance from 1 to 100 MHz
3Overall Al/PET tape (plus individual pair foils on POS)100 % aluminum/polyester overall tape (LSC5OS-4) or 4 individual pair foils + overall tape (LSC5POS-4)Suppresses alien crosstalk and high-frequency radar ingress
4Overall tinned copper wire braid screenASTM B33 tinned copper wire braid (≥ 85 % coverage) + drain wireLow transfer impedance and 360° backshell grounding
5Cross-linked low-smoke zero-halogen (LSZH XLPO) jacketThermoset cross-linked polyolefin compound (black, optional Al braid armor on -A variants)Zero-halogen shipboard fire safety rated -30 °C to +105 °C

LSC5OS-4 (M24643/59-01UO · SF/UTP)

4-pair 24 AWG with overall foil + tinned copper braid screen (Ø 7.62 mm)

LSC5POS-4 (M24643/59-02UO · S/FTP)

4-pair 24 AWG with individual foil-shielded pairs + overall tinned copper braid (Ø 8.38 mm)

Technical data

Ratings & operating limits

Typical values: Typical values for this cable type, based on MIL-DTL-24643/59 & ANSI/TIA-568 Cat.5e (Shipboard LSZH Screened LAN). Values for your order are confirmed in the datasheet and quotation.

Electrical

Characteristic impedance
100 Ω ± 15 Ω (1 to 100 MHz)
Max. conductor DC resistance
≤ 93.8 Ω/km (28.6 Ω/1000 ft) at +20 °C
Mutual capacitance & VoP
≤ 56 pF/m · 70 % nominal velocity of propagation
Attenuation @ 10 / 100 MHz
6.5 / 22.0 dB/100m max.
NEXT @ 10 / 100 MHz
≥ 50.3 dB / ≥ 35.3 dB
Propagation delay skew
≤ 45 ns/100m

Thermal

Operating temperature
-30 °C to +105 °C
Voltage rating
300 V RMS · PoE / PoE+ compliant
Acid gas & smoke index
MIL-DTL-24643 zero-halogen (< 0.2 % halogens)

Mechanical

Pair count & conductor size
4 pairs × 24 AWG (solid or 7×32 AWG stranded)
Nominal outer diameter
7.62 mm (LSC5OS-4) · 8.38 mm (LSC5POS-4)
Min. bending radius
8 × OD (unarmored) · 10 × OD (armored)

Resistance

Flame propagation
MIL-DTL-24643 / IEEE 1202 vertical tray flame
Watertightness class
Non-watertight (dry interior compartments)
Oil & fluid resistance
Resists marine lube oil, fuel & cleaning agents

Reference standards

Military specification
MIL-DTL-24643/59 (M24643/59)
LAN channel standard
ANSI/TIA-568.2-D & ISO/IEC 11801 Cat.5e Class D
RoHS & REACH
RoHS 3 & REACH SVHC compliant

Identification

Pair colour code
Blue/White, Orange/White, Green/White, Brown/White
Jacket marking
M24643/59-01UO LSC5OS-4 CAT5E SHIPBOARD LOW SMOKE
Customs tariff (HS)
8544.49

Sizes

8 standard configurations (LSC5OS-4 / LSC5POS-4)

Engineering dimensions, impedance, propagation velocity, and electrical ratings for LSC5OS-4 / LSC5POS-4 per MIL-DTL-24643/59 & ANSI/TIA-568 Cat.5e (Shipboard LSZH Screened LAN).

Dimensions & weights
Order designationImpedance / sizeConductor & dielectricWall ≈
mm		Outer Ø ≈
mm		Metal
kg/km		Weight ≈
kg/km		Min. bend R
fixed mm		Enquiry
Standard LSC5OS-4 / LSC5POS-4 configurations
M24643/59-01UO (LSC5OS-4)4×2×24 AWG · SF/UTPSolid 24 AWG + Overall Shield0.957.6234.072.061
M24643/59-01AU (LSC5OSA-4)4×2×24 AWG · ArmoredSolid 24 AWG + SF/UTP + Al0.959.2752.0108.093
M24643/59-02UO (LSC5POS-4)4×2×24 AWG · S/FTPSolid 24 AWG + Pair & Overall1.008.3839.086.067
M24643/59-02AU (LSC5POSA-4)4×2×24 AWG · S/FTP Arm.Solid 24 AWG + S/FTP + Al1.0010.0358.0125.0100
M24643/59-03UO (Flex OS)4×2×24/7 AWG · SF/UTPStranded 24/7 + Overall Shield0.957.8735.076.063
M24643/59-04UO (Flex POS)4×2×24/7 AWG · S/FTPStranded 24/7 + Pair & Overall1.008.6440.090.069
LSC5OS-2 (2-Pair Cat.5e)2×2×24 AWG · SF/UTP2-Pair Fast Ethernet LSZH0.856.3522.052.051
LSC5POS-4-SHF14×2×24 AWG · IEC SHF1DNV / ABS Naval Cat.5e S/FTP0.958.2038.082.066
  • 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 LSC5OS-4 / LSC5POS-4 subject to standard manufacturing tolerances per MIL-DTL-24643/59 & ANSI/TIA-568 Cat.5e (Shipboard LSZH Screened LAN).

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-24643/59 & ANSI/TIA-568 Cat.5e (Shipboard LSZH Screened LAN)Every manufactured length
Dielectric spark & high-voltage withstand test100 % in-line spark and AC/DC dielectric withstand per MIL-DTL-24643/59 & ANSI/TIA-568 Cat.5e (Shipboard LSZH Screened LAN)Every spool or drum length
Sample tests
Insertion loss (attenuation), velocity & capacitance checkAttenuation (dB/100m), VoP (%), and capacitance within MIL-DTL-24643/59 & ANSI/TIA-568 Cat.5e (Shipboard LSZH Screened LAN) limitsPer production batch
Screening attenuation, transfer impedance & environmental qualificationQualified to MIL-DTL-24643/59 & ANSI/TIA-568 Cat.5e (Shipboard LSZH Screened LAN) 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-24643/59 & ANSI/TIA-568 Cat.5e (Shipboard LSZH Screened LAN)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 M24643/59-01UO LSC5OS-4 4PR24 CAT5E SHIPBOARD LOW SMOKE
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

PDFLSC5OS-4 / LSC5POS-4 MIL-DTL-24643 LSC5OS-4 / LSC5POS-4 Shipboard – technical datasheet8 sizes · construction, technical data, approvalsXLSXLSC5OS-4 / LSC5POS-4 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 LSC5OS-4 and LSC5POS-4 under MIL-DTL-24643/59?
LSC5OS-4 ('Overall Shield', SF/UTP) places a collective aluminum/polyester tape and tinned copper wire braid around all four unshielded twisted pairs, whereas LSC5POS-4 ('Pair and Overall Shield', S/FTP) wraps each individual twisted pair in its own aluminum/polyester foil shield inside the overall foil and tinned copper braid for superior NEXT and EMI isolation.
When should I use LSC5OS-4 (/59) versus LSC5OSW-4 (/61)?
Use LSC5OS-4 or LSC5POS-4 (MIL-DTL-24643/59) for dry interior compartments and cabinet-to-cabinet patching within the same watertight zone; use LSC5OSW-4 (MIL-DTL-24643/61) whenever the cable penetrates a watertight deck or bulkhead.
Does LSC5OS-4 support Gigabit Ethernet (1000BASE-T) and PoE+?
Yes. Its 4-pair 24 AWG 100 Ω construction meets full ANSI/TIA-568.2-D Category 5e parameters up to 100 MHz, supporting 1000BASE-T Gigabit Ethernet and IEEE 802.3at PoE+.
Are armored versions available for exposed naval cableways?
Yes. Both LSC5OSA-4 (-01AU) and LSC5POSA-4 (-02AU) add an overall braided aluminum wire armor over the cross-linked polyolefin jacket.

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LSC5OS-4 / LSC5POS-4 MIL-DTL-24643 LSC5OS-4 / LSC5POS-4 Shipboard

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