The Sleeving,textile,electrical, cataloged under National Stock Number 5970-01-187-3731, 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 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 9 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5970-01-187-3731 |
| Primary Part Number | EXPANDO-A-FLEX FR 1 1/4 |
| Item Name | Sleeving,textile,electrical |
| FSC / FSG | 5970 / 59 — Electrical Insulators and Insulating Materials |
| Manufacturer | Western Filament, Inc. |
| Status | ACTIVE |
| Temp Rating | 125.0 CELSIUS DEGC |
| Flexibility | FLEXIBLE |
| Wall Thickness | 0.025 INCHES NOMINAL IN |
| Inside Diameter | 1.250 INCHES NOMINAL IN |
| Color | BLACK |
| Environmental Protection | FLAME RESISTANT AND MILDEW RESISTANT AND OIL RESISTANT |
| Material | PLASTIC POLYESTER LOCATION NOT OTHERWISE SPECIFIED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Hazardous per DLA record (HMIC Y) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| EXPANDO-A-FLEX FR 1 1/4 | Western Filament, Inc. (USA) |
| LANGOFLEX G-FR 1 1/4 | Delfingen Us-New York, Inc Dba Sofanou (USA) |
| EX920-FR 0963BW | Delfingen Us-New York, Inc Dba Sofanou (USA) |
| 95321250 | Alta Technologies Inc (USA) |
| Reference | Meaning |
|---|---|
| 5021003232S | 3/1 Design control — primary reference U.S. Government activity |
| A319712-004 | 5/1 Secondary reference U.S. Government activity |
| EX920-FR 0963BW | 5/9 Secondary reference Rehan Industrial Supply Inc, Oscar Marcus, Asgar Cementwala, Rebecca Marcus, Ruqaiyah Cementwala |
| XFR1-1/4 | 5/1 Secondary reference Weico Wire & Cable Inc Div Weico Wire |
| 7849961P005 | 7/1 Vendor item drawing reference Lockheed Martin Corporation Div Rms |
| 6762003-52 | 5/9 Secondary reference U.S. Government activity |
| EXPANDO FR 1-1/4 IN BLACK | 5/9 Secondary reference U.S. Government activity |
| E-MF-FR 1 1/4 BLACK | 5/9 Secondary reference U.S. Government activity |
| 1-1/4 BLK/WHT TRACER EXPANDO FR | 5/2 Secondary reference U.S. Government activity |
NSN 5970-01-187-3731 is a Sleeving,textile,electrical, manufactured by Western Filament, Inc., classified under FSC 5970, Electrical Insulators and Insulating Materials. Status: active.
NSN 5970-01-187-3731 has 4 manufacturer part numbers on file: EXPANDO-A-FLEX FR 1 1/4 (Western Filament, Inc.), LANGOFLEX G-FR 1 1/4 (Delfingen Us-New York, Inc Dba Sofanou), EX920-FR 0963BW (Delfingen Us-New York, Inc Dba Sofanou), 95321250 (Alta Technologies Inc).
Key specifications for EXPANDO-A-FLEX FR 1 1/4: Temp Rating: 125.0 CELSIUS DEGC; Flexibility: FLEXIBLE; Wall Thickness: 0.025 INCHES NOMINAL IN; Inside Diameter: 1.250 INCHES NOMINAL IN. 7 specifications are documented in the U.S. Government catalog.
Hazardous per DLA record (HMIC Y). 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.