The Washer,recessed, cataloged under National Stock Number 5310-01-173-0226, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Bae Systems Hagglunds Aktiebolag. The record lists 4 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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,recessed |
| FSC / FSG | 5310 — Nuts and Washers (FSG 53) |
| Manufacturers | Bae Systems Hagglunds Aktiebolag (CAGE AC90N); Hellgeth Engineering Spezialfahrzeugbau Gmbh (CAGE CJ802); Hagglunds Vehicle Gmbh (CAGE C8716); Technamm (CAGE FAR29) |
| Parameter | Value |
|---|---|
| NSN | 5310-01-173-0226 |
| Primary Part Number | 4537321-001 |
| Item Name | Washer,recessed |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Bae Systems Hagglunds Aktiebolag |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 4537321-001 | Bae Systems Hagglunds Aktiebolag (SWE) |
| 010412 | Hellgeth Engineering Spezialfahrzeugbau Gmbh (DEU) |
| 4537321-001 | Hagglunds Vehicle Gmbh (DEU) |
| HE010412 | Technamm (FRA) |
| Reference | Meaning |
|---|---|
| 92842-991 | 3/9 Design control — primary reference U.s. Defense Services, Inc. Dba Usds |
| 4537321-001 | 5/9 Secondary reference Bae Systems Hagglunds Ab |
| 455-0105 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 5310-01-173-0226 is a Washer,recessed, manufactured by Bae Systems Hagglunds Aktiebolag, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-173-0226 has 4 manufacturer part numbers on file: 4537321-001 (Bae Systems Hagglunds Aktiebolag), 010412 (Hellgeth Engineering Spezialfahrzeugbau Gmbh), 4537321-001 (Hagglunds Vehicle Gmbh), HE010412 (Technamm).
1 possible match (shared part number, not a government interchangeability claim): 5945-01-422-9197. 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.