The Insulation Sleeving,electrical,s, cataloged under National Stock Number 5970-01-007-8961, 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 Sea Wire & Cable Inc. Government technical data includes 18 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through both NSN and commercial part number lookups. 11 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5970-01-007-8961 |
| Primary Part Number | 107-4-JWM250 |
| Item Name | Insulation Sleeving,electrical,s |
| FSC / FSG | 5970 / 59 — Electrical Insulators and Insulating Materials |
| Manufacturer | Sea Wire & Cable Inc |
| Status | ACTIVE |
| Main Body Small End Inside Diameter | 0.620 INCHES MAXIMUM AFTER UNRESTRICTED RECOVERY IN |
| Main Body Small End Inside Diameter | 2.040 INCHES MINIMUM AS SUPPLIED IN |
| Temp Rating | -55.0 CELSIUS AND 135.0 CELSIUS DEGC |
| Main Body Large End Inside Diameter | 2.040 INCHES MINIMUM AS SUPPLIED IN |
| Main Body Large End Inside Diameter | 1.380 INCHES MAXIMUM AFTER UNRESTRICTED RECOVERY IN |
| Style Designator | BOOT-STRAIGHT |
| Flexibility | FLEXIBLE |
| Material Document and Classification | MIL-I-81765/1,TYPE II MIL SPEC SINGLE MATERIAL RESPONSE LOCATION NOT OTHERWISE SPECIFIED |
| Main Body Overall Length | 5.130 INCHES NOMINAL AFTER UNRESTRICTED RECOVERY IN |
| Dielectric Material Voltage Rating Per Unit Thickness | 200.0 VOLTS PER MIL /0.001 INCH/ IN |
| Reliability Indicator | NOT ESTABLISHED |
| Color | BLACK |
| Environmental Protection | CORROSION RESISTANT AND FLAME RESISTANT AND MILDEW RESISTANT AND WATER RESISTANT |
| Distance From Bottom of Shoulder to Large End of Main Body | 2.540 INCHES NOMINAL AFTER UNRESTRICTED RECOVERY IN |
| Minimum Tensile Strength | 1200 POUNDS PER SQUARE INCH LBS |
| Material | PLASTIC CROSS-LINKED POLYOLEFIN LOCATION NOT OTHERWISE SPECIFIED |
| Material | ADHESIVE COATING |
| Main Body Wall Thickness | 0.130 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 |
|---|---|
| 107-4-JWM250 PRIMARY | Sea Wire & Cable Inc (USA) |
| MS3109-16AC PRIMARY | Sae International Dba Sae International (USA) |
| Reference | Meaning |
|---|---|
| MS3109-16AC | 3/9 Design control — primary reference U.S. Government activity |
| MS3109-16AC | 5/9 Secondary reference U.S. Government activity |
| 107-4-JLWM250 | 5/1 Secondary reference Hellermanntyton Limited Dba Staeng |
| AS31091 | 5/1 Secondary reference Sae International Dba Sae International |
| MIL-C-85049/68 | 5/9 Secondary reference U.S. Government activity |
| M85049/68-1A16C | 5/9 Secondary reference U.S. Government activity |
| 158-43-JLWM250 | 5/9 Secondary reference Hellermanntyton Limited |
| 202D174-4-60/42 | 5/9 Secondary reference Te Connectivity Corporation Dba Raychem Product Division |
| AS31091 | 5/9 Secondary reference U.S. Government activity |
| 158-43-JLWM250 | 5/1 Secondary reference Hellermanntyton Limited Dba Staeng |
| 107-4-JLWM250 | 5/9 Secondary reference Hellermanntyton Limited |
NSN 5970-01-007-8961 is a Insulation Sleeving,electrical,s, manufactured by Sea Wire & Cable Inc, classified under FSC 5970, Electrical Insulators and Insulating Materials. Status: active.
NSN 5970-01-007-8961 has 2 manufacturer part numbers on file: 107-4-JWM250 (Sea Wire & Cable Inc), MS3109-16AC (Sae International Dba Sae International).
Key specifications for 107-4-JWM250: Main Body Small End Inside Diameter: 0.620 INCHES MAXIMUM AFTER UNRESTRICTED RECOVERY IN; Main Body Small End Inside Diameter: 2.040 INCHES MINIMUM AS SUPPLIED IN; Temp Rating: -55.0 CELSIUS AND 135.0 CELSIUS DEGC; Main Body Large End Inside Diameter: 2.040 INCHES MINIMUM AS SUPPLIED IN. 18 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.