The Insulator,bushing, cataloged under National Stock Number 5970-00-705-6639, 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 U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5970-00-705-6639 |
| Primary Part Number | 7056639 |
| Item Name | Insulator,bushing |
| FSC / FSG | 5970 / 59 — Electrical Insulators and Insulating Materials |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Style Designator | CYLINDRICAL |
| Outside Diameter | 0.707 INCHES MINIMUM AND 0.731 INCHES MAXIMUM IN |
| Inside Diameter | 0.609 INCHES MINIMUM AND 0.641 INCHES MAXIMUM IN |
| End Configuration | BOTH ENDS SQUARED |
| Unable to Decode | UNABLE TO DECODE |
| 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 |
|---|---|
| 7056639 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 6970007056639 | 5/9 Secondary reference E.c.a Etablissement Centrald'approvisionnement Des Forces Armee |
| 7056633 | D/9 Drawing number reference only U S Army Tank Automotive Command Amsta-Im-Mm |
| V208-72 | 5/9 Secondary reference Pettibone Llc |
NSN 5970-00-705-6639 is a Insulator,bushing, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5970, Electrical Insulators and Insulating Materials. Status: active.
NSN 5970-00-705-6639 has 1 manufacturer part number on file: 7056639 (U S Army Tank Automotive Command Amsta-Im-Mm).
1 possible match (shared part number, not a government interchangeability claim): 5970-01-174-9449. Verify interchangeability with system specifications before substitution.
Key specifications for 7056639: Overall Height: 1.938 INCHES MINIMUM AND 2.062 INCHES MAXIMUM IN; Style Designator: CYLINDRICAL; Outside Diameter: 0.707 INCHES MINIMUM AND 0.731 INCHES MAXIMUM IN; Inside Diameter: 0.609 INCHES MINIMUM AND 0.641 INCHES MAXIMUM IN. 5 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.