The Washer,flat, cataloged under National Stock Number 5310-00-432-4064, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. The record lists 6 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Washer,flat |
| FSC / FSG | 5310 — Nuts and Washers (FSG 53) |
| Manufacturers | Navantia Sa Sme. Div Navantia Hq (CAGE 0141B); Caterpillar Inc Div Caterpillar Defense (CAGE 11083); Oshkosh Defense Llc (CAGE 75Q65); Navantia - Propulsion Y Energia Motores - Cartagena (CAGE 409BB); U S Army Tank Automotive Command Amsta-Im-Mm (CAGE 19207) |
| Parameter | Value |
|---|---|
| NSN | 5310-00-432-4064 |
| Primary Part Number | 9M-1974 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 9M-1974 | Navantia Sa Sme. Div Navantia Hq (ESP) |
| 9M-1974 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
| 7HB527 | Oshkosh Defense Llc (USA) |
| 9M-1974 | Navantia - Propulsion Y Energia Motores - Cartagena (ESP) |
| 9M-1974 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| 9M1974 | Caterpillar (uk) Ltd (GBR) |
| Reference | Meaning |
|---|---|
| 7HB527 | 5/9 Secondary reference Oshkosh Corp |
| 3000136 | 5/1 Secondary reference General Dynamics Land Systems - Force Protection Inc. Dba Gdls Div Gdls-Fp |
| 5310004324064 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
| 2000103 | 5/9 Secondary reference General Dynamics Land Systems - Force Protection Inc. Dba Gdls Div Gdls-Fp |
| IPD9M1974 | 5/9 Secondary reference Industrial Parts Depot, Llc Dba Ipd |
NSN 5310-00-432-4064 is a Washer,flat, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-432-4064 has 6 manufacturer part numbers on file: 9M-1974 (Navantia Sa Sme. Div Navantia Hq), 9M-1974 (Caterpillar Inc Div Caterpillar Defense), 7HB527 (Oshkosh Defense Llc), 9M-1974 (Navantia - Propulsion Y Energia Motores - Cartagena), 9M-1974 (U S Army Tank Automotive Command Amsta-Im-Mm) and 1 more.
4 possible matches (shared part number, not a government interchangeability claim): 1240-01-486-7979, 6625-01-533-7366, 5310-01-576-0695. Verify interchangeability with system specifications before substitution.
No hazard code in the DLA record (HMIC N). 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.