The Insulation Sleeving,electrical, cataloged under National Stock Number 5970-01-531-6443, is classified within Federal Supply Class 5970 (Electrical Insulators and Insulating Materials) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Department of Defense Project Manager-Mobile Electric Power. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5970-01-531-6443 |
| Primary Part Number | 88-20541-5 |
| Item Name | Insulation Sleeving,electrical |
| FSC / FSG | 5970 / 59 — Electrical Insulators and Insulating Materials |
| Manufacturer | Department of Defense Project Manager-Mobile Electric Power |
| Status | ACTIVE |
| Temp Rating | -55.0 CELSIUS AND 135.0 CELSIUS DEGC |
| Expanded Inside Diameter | 0.093 INCHES NOMINAL IN |
| Design Form | FULL ROUND |
| Dielectric Withstanding Voltage in Volts | 500.0 |
| Style Designator | SHRINKABLE |
| Flexibility | FLEXIBLE |
| Recovered Wall Thickness | 0.017 INCHES MINIMUM AND 0.023 INCHES MAXIMUM IN |
| Recovered Inside Diameter | 0.046 INCHES NOMINAL IN |
| Heat Shrinkage Rating in Percent | 50.0 |
| Reliability Indicator | ESTABLISHED |
| Color | BLACK |
| Environmental Protection | FLAME RESISTANT |
| Minimum Tensile Strength | 1500 POUNDS PER SQUARE INCH LBS |
| Material | PLASTIC CROSS-LINKED POLYOLEFIN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| B2 3/32 | Sumitomo Electric Interconnect Products, Inc. Dba Sumitomo Electric Interconnect Products Inc (USA) |
| 88-20541-5 PRIMARY | Department of Defense Project Manager-Mobile Electric Power (USA) |
| Reference | Meaning |
|---|---|
| 88-20541 | 7/2 Vendor item drawing reference Department of Defense Project Manager-Mobile Electric Power |
| ST-301-3/32 | 5/9 Secondary reference Dearborn/cdt, Inc. |
NSN 5970-01-531-6443 is a Insulation Sleeving,electrical, manufactured by Department of Defense Project Manager-Mobile Electric Power, classified under FSC 5970, Electrical Insulators and Insulating Materials. Status: active.
NSN 5970-01-531-6443 has 2 manufacturer part numbers on file: B2 3/32 (Sumitomo Electric Interconnect Products, Inc. Dba Sumitomo Electric Interconnect Products Inc), 88-20541-5 (Department of Defense Project Manager-Mobile Electric Power).
5 possible matches (shared part number, not a government interchangeability claim): 5970-01-532-1121, 5970-01-592-9673, 5970-01-592-9736. Verify interchangeability with system specifications before substitution.
Key specifications for 88-20541-5: Temp Rating: -55.0 CELSIUS AND 135.0 CELSIUS DEGC; Expanded Inside Diameter: 0.093 INCHES NOMINAL IN; Design Form: FULL ROUND; Dielectric Withstanding Voltage in Volts: 500.0. 14 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.