The Insulation Sleeving,electrical,s, cataloged under National Stock Number 5970-01-171-9535, 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 Te Connectivity Corporation Dba Raychem Product Division. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5970-01-171-9535 |
| Primary Part Number | 202A121-25 |
| Item Name | Insulation Sleeving,electrical,s |
| FSC / FSG | 5970 / 59 — Electrical Insulators and Insulating Materials |
| Manufacturer | Te Connectivity Corporation Dba Raychem Product Division |
| Status | ACTIVE |
| Main Body Small End Inside Diameter | 0.210 INCHES MAXIMUM AFTER UNRESTRICTED RECOVERY IN |
| Main Body Small End Inside Diameter | 0.970 INCHES MINIMUM AS SUPPLIED IN |
| Distance From Top of Shoulder to Small End of Main Body | 0.360 INCHES NOMINAL AFTER UNRESTRICTED RECOVERY IN |
| Main Body Large End Inside Diameter | 0.390 INCHES MAXIMUM AFTER UNRESTRICTED RECOVERY IN |
| Main Body Large End Inside Diameter | 0.970 INCHES MINIMUM AS SUPPLIED IN |
| Style Designator | BOOT-STRAIGHT |
| Main Body Overall Length | 1.500 INCHES NOMINAL AFTER UNRESTRICTED RECOVERY IN |
| Environmental Protection | WATER RESISTANT |
| Distance From Bottom of Shoulder to Large End of Main Body | 0.860 INCHES NOMINAL AFTER UNRESTRICTED RECOVERY IN |
| Material | RUBBER LOCATION NOT OTHERWISE SPECIFIED |
| Main Body Wall Thickness | 0.060 INCHES NOMINAL AFTER UNRESTRICTED RECOVERY IN |
| 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 |
|---|---|
| B82587 | Mbda Uk Ltd (GBR) |
| 202A121-25 PRIMARY | Te Connectivity Corporation Dba Raychem Product Division (USA) |
| 105-1-G | Hellermanntyton Limited Dba Staeng (GBR) |
| Reference | Meaning |
|---|---|
| 105-1-G | 5/9 Secondary reference Hellermanntyton Limited |
NSN 5970-01-171-9535 is a Insulation Sleeving,electrical,s, manufactured by Te Connectivity Corporation Dba Raychem Product Division, classified under FSC 5970, Electrical Insulators and Insulating Materials. Status: active.
NSN 5970-01-171-9535 has 3 manufacturer part numbers on file: B82587 (Mbda Uk Ltd), 202A121-25 (Te Connectivity Corporation Dba Raychem Product Division), 105-1-G (Hellermanntyton Limited Dba Staeng).
2 possible matches (shared part number, not a government interchangeability claim): 8040-01-576-8626, 6110-01-665-3331. Verify interchangeability with system specifications before substitution.
Key specifications for 202A121-25: Main Body Small End Inside Diameter: 0.210 INCHES MAXIMUM AFTER UNRESTRICTED RECOVERY IN; Main Body Small End Inside Diameter: 0.970 INCHES MINIMUM AS SUPPLIED IN; Distance From Top of Shoulder to Small End of Main Body: 0.360 INCHES NOMINAL AFTER UNRESTRICTED RECOVERY IN; Main Body Large End Inside Diameter: 0.390 INCHES MAXIMUM AFTER UNRESTRICTED RECOVERY IN. 11 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.