The Washer,flat, cataloged under National Stock Number 5310-01-690-6664, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. The record lists 4 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-690-6664 |
| Primary Part Number | 12584809-9 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| 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 |
|---|---|
| 12584809-9 | Fastenal Company Dba Fastenal Co (USA) |
| 12584809-9 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| 12584809-9 | Mcmaster-Carr Supply Co (USA) |
| 12584809-9 PRIMARY | Flyer Defense, Llc (USA) |
| Reference | Meaning |
|---|---|
| 12584809-9 | 5/9 Secondary reference General Dynamics Ordnance and Tactical Systems, Inc. |
| 12584809-9 | 5/2 Secondary reference U.S. Government activity |
NSN 5310-01-690-6664 is a Washer,flat, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-690-6664 has 4 manufacturer part numbers on file: 12584809-9 (Fastenal Company Dba Fastenal Co), 12584809-9 (U S Army Tank Automotive Command Amsta-Im-Mm), 12584809-9 (Mcmaster-Carr Supply Co), 12584809-9 (Flyer Defense, Llc).
Key specifications for 12584809-9: Part Name Assigned by Controlling Agency: WASHER,FLAT; End Item Identification: NSN:2355-01-627-5147;TRUCK,COMMAND RECONNAISSANCE. 0 specifications are documented in the U.S. Government catalog.
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.