The Sleeving,textile,electrical, cataloged under National Stock Number 5970-01-455-5538, 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 Western Filament, Inc.. Government technical data includes 7 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5970-01-455-5538 |
| Primary Part Number | 1/4IN BLACK FR POLY TW |
| Item Name | Sleeving,textile,electrical |
| FSC / FSG | 5970 / 59 — Electrical Insulators and Insulating Materials |
| Manufacturer | Western Filament, Inc. |
| Status | ACTIVE |
| Temp Rating | 100.0 CELSIUS DEGC |
| Style Designator | NONSHRINKABLE |
| Flexibility | FLEXIBLE |
| Inside Diameter | 0.375 INCHES MAXIMUM IN |
| Color | BLACK |
| Environmental Protection | FLAME RESISTANT |
| Material | PLASTIC POLYESTER LOCATION NOT OTHERWISE SPECIFIED |
| 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 |
|---|---|
| 1/4IN BLACK FR POLY TW PRIMARY | Western Filament, Inc. (USA) |
| FRTW-B-1/4IN BLACK PRIMARY | Techflex Inc (USA) |
| Reference | Meaning |
|---|---|
| BMS13-52 | 5/1 Secondary reference U.S. Government activity |
| S52-5-025-0 | 3/2 Design control — primary reference U.S. Government activity |
| EMF-0695 | 5/9 Secondary reference U.S. Government activity |
| E87611 | 5/1 Secondary reference Western Filament, Inc. |
| 674999352 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5970-01-455-5538 is a Sleeving,textile,electrical, manufactured by Western Filament, Inc., classified under FSC 5970, Electrical Insulators and Insulating Materials. Status: active.
NSN 5970-01-455-5538 has 2 manufacturer part numbers on file: 1/4IN BLACK FR POLY TW (Western Filament, Inc.), FRTW-B-1/4IN BLACK (Techflex Inc).
1 possible match (shared part number, not a government interchangeability claim): 5970-01-687-2416. Verify interchangeability with system specifications before substitution.
Key specifications for 1/4IN BLACK FR POLY TW: Temp Rating: 100.0 CELSIUS DEGC; Style Designator: NONSHRINKABLE; Flexibility: FLEXIBLE; Overall Length: 1000.000 FEET NOMINAL FT. 7 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.