The Washer,flat, cataloged under National Stock Number 5310-01-166-5859, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Amz Alabama Inc.. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Item Name | Washer,flat |
| FSC / FSG | 5310 — Nuts and Washers (FSG 53) |
| Manufacturers | Mercedes-Benz Ag (CAGE CN7Z7); Bae Systems Hagglunds Aktiebolag (CAGE AC90N); Amz Alabama Inc. (CAGE 076M6) |
| Parameter | Value |
|---|---|
| NSN | 5310-01-166-5859 |
| Primary Part Number | 93652-991 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Amz Alabama Inc. |
| 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 |
|---|---|
| 007603012110 | Mercedes-Benz Ag (DEU) |
| 4537800-786 | Bae Systems Hagglunds Aktiebolag (SWE) |
| 93652-991 PRIMARY | Amz Alabama Inc. (USA) |
| Reference | Meaning |
|---|---|
| 93652-991 | 3/9 Design control — primary reference U.s. Defense Services, Inc. Dba Usds |
| 4537800-786 | 5/9 Secondary reference Bae Systems Hagglunds Ab |
| 007603012110 | 5/9 Secondary reference Daimler Ag |
NSN 5310-01-166-5859 is a Washer,flat, manufactured by Amz Alabama Inc., classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-166-5859 has 3 manufacturer part numbers on file: 007603012110 (Mercedes-Benz Ag), 4537800-786 (Bae Systems Hagglunds Aktiebolag), 93652-991 (Amz Alabama Inc.).
1 possible match (shared part number, not a government interchangeability claim): 5330-01-439-2187. 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.