PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

PO135 3/64IN WHITEInsulation Sleeving,electrical

Markel Corp. · NSN 5970-00-787-2312 · FSC 5970 · No Item Name Available
Verified by PartsTable
NSN 5970-00-787-2312 — this item is cataloged by the U.S. Government under National Stock Number 5970-00-787-2312. Primary manufacturer part number: PO135 3/64IN WHITE.
Features
  • Insulation Sleeving,electrical — FSC 5970
  • Recovered Inside Diameter: 0.023 INCHES MAXIMUM IN
  • Heat Shrinkage Rating in Percent: 50.0
  • Flexibility: FLEXIBLE
  • Minimum Tensile Strength: 1500 POUNDS PER SQUARE INCH LBS
  • Dielectric Material Voltage Rating Per Unit Thickness: 500.0 VOLTS PER MIL /0.001 INCH/ IN
  • Environmental Protection: CORROSION RESISTANT AND FLAME RESISTANT AND MILDEW RESISTANT AND WATER RESISTANT
  • Color: WHITE
Applications
  • Applications requiring Plastic Cross-Linked Polyolefin construction
General Description

The Insulation Sleeving,electrical, cataloged under National Stock Number 5970-00-787-2312, is classified within Federal Supply Class 5970 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Markel Corp.. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 39 commercial cross-references from 28 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5970-00-787-2312
Primary Part NumberPO135 3/64IN WHITE
Item NameInsulation Sleeving,electrical
FSC / FSG5970 / 59 — No Item Name Available
ManufacturerMarkel Corp.
StatusCANCELLED
Recovered Inside Diameter0.023 INCHES MAXIMUM IN
Heat Shrinkage Rating in Percent50.0
FlexibilityFLEXIBLE
Minimum Tensile Strength1500 POUNDS PER SQUARE INCH LBS
Dielectric Material Voltage Rating Per Unit Thickness500.0 VOLTS PER MIL /0.001 INCH/ IN
Environmental ProtectionCORROSION RESISTANT AND FLAME RESISTANT AND MILDEW RESISTANT AND WATER RESISTANT
ColorWHITE
Recovered Wall Thickness0.013 INCHES MINIMUM AND 0.019 INCHES MAXIMUM IN
Style DesignatorSHRINKABLE
Temp Rating-55.0 CELSIUS AND 135.0 CELSIUS DEGC
Expanded Inside Diameter0.046 INCHES MINIMUM IN
MaterialPLASTIC CROSS-LINKED POLYOLEFIN
Reliability IndicatorNOT ESTABLISHED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
5930-00-409-5507344635-1 INTERCHANGEABLE
Switch,thermostatic
Itw Food Equipment Group Llc Dba Hobart Service
6240-01-209-1972 INTERCHANGEABLE
Lamp,incandescent
Cross-Reference Index
Part NumberManufacturer
344635-1 Raytheon Company (USA)
344635-1 Raytheon Company Div Corp (USA)
FIT-221-3/64WHITE Belden, Inc. (USA)
FP301-1 3/64 IN WHITE 3m Company Dba 3m (USA)
11699912-142 Army, United States Department of the Dba Rock Island Arsenal Jmtc (USA)
446320-201 Raytheon Company (USA)
AMS-DTL-23053/5 Sae International Dba Sae International (USA)
MIL-I-23053/5 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
PO135 3/64IN WHITE PRIMARY Markel Corp. (USA)
M23053/5-101-9 Society of Automotive Engineers Inc (USA)
MP-M0013-101 Raytheon E-Systems, Inc (USA)
119A2290-142 General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems (USA)
5970PL0848411 Jednolity Indeks Materialowy - Uniform Material Index (POL)
59199-01 PRIMARY Saint-Gobain Performance Plastics Corporation Dba Saint Gobain Performance Plastics Corp Div Process Systems (USA)
RNF-100-3/64-WH-SP Te Connectivity Corporation Dba Raychem Product Division (USA)
R2479P1 Lockheed Martin Corporation Dba Lockheed Martin Aerostructures (USA)
M23053/5-101-9 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
591-0147-001 The Boeing Company Div Legacy Boeing Hb1 (USA)
PENNTUBE V FLEXIBLE 3/64IN WHITE Saint-Gobain Performance Plastics Corporation Dba Saint Gobain Performance Plastics Corp Div Process Systems (USA)
MMS809-9-3-64 The Boeing Company Div Defense (USA)
Related Parts
5930-00-409-5507INTERCHANGEABLE
SWITCH,THERMOSTATIC
344635-1
6240-01-209-1972INTERCHANGEABLE
LAMP,INCANDESCENT

Frequently Asked Questions

What is NSN 5970-00-787-2312?

NSN 5970-00-787-2312 is a Insulation Sleeving,electrical, manufactured by Markel Corp., classified under FSC 5970 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5970-00-787-2312?

NSN 5970-00-787-2312 has 39 cross-referenced part numbers: 344635-1 (Raytheon Company), 344635-1 (Raytheon Company Div Corp), FIT-221-3/64WHITE (Belden, Inc.), FP301-1 3/64 IN WHITE (3m Company Dba 3m), 11699912-142 (Army, United States Department of the Dba Rock Island Arsenal Jmtc) and 34 more.

What NSN replaces 5970-00-787-2312?

There are 2 known substitutes for 5970-00-787-2312: 5930-00-409-5507, 6240-01-209-1972. Verify interchangeability with system specifications before substitution.

What are the specifications of PO135 3/64IN WHITE?

Key specifications for PO135 3/64IN WHITE: Recovered Inside Diameter: 0.023 INCHES MAXIMUM IN; Heat Shrinkage Rating in Percent: 50.0; Flexibility: FLEXIBLE; Minimum Tensile Strength: 1500 POUNDS PER SQUARE INCH LBS. 13 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5970-00-787-2312 still in active supply?

NSN 5970-00-787-2312 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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