The Insulator,washer, cataloged under National Stock Number 5970-01-155-6774, 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 4 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5970-01-155-6774 |
| Primary Part Number | 12310303 |
| Item Name | Insulator,washer |
| FSC / FSG | 5970 / 59 — Electrical Insulators and Insulating Materials |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Style Designator | ROUND, FLAT |
| Outside Diameter | 0.984 INCHES NOMINAL IN |
| Inside Diameter | 0.197 INCHES NOMINAL IN |
| Material | PLASTIC POLYHEXAMETHYLENE AMIDE OVERALL |
| 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 |
|---|---|
| 12310303 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 12310303 | 5/9 Secondary reference Drs Sustainment Systems, Inc. |
| 12310303 | 5/1 Secondary reference G M J Machine Co, Inc Div G.m.j. Machine Company, Inc. |
NSN 5970-01-155-6774 is a Insulator,washer, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5970, Electrical Insulators and Insulating Materials. Status: active.
NSN 5970-01-155-6774 has 1 manufacturer part number on file: 12310303 (U S Army Tank Automotive Command Amsta-Im-Mm).
1 possible match (shared part number, not a government interchangeability claim): 6240-01-409-1577. Verify interchangeability with system specifications before substitution.
Key specifications for 12310303: Overall Height: 0.031 INCHES NOMINAL IN; Style Designator: ROUND, FLAT; Outside Diameter: 0.984 INCHES NOMINAL IN; Inside Diameter: 0.197 INCHES NOMINAL IN. 4 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.