The Washer,key, cataloged under National Stock Number 5310-01-165-4750, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Technamm. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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,key |
| FSC / FSG | 5310 — Nuts and Washers (FSG 53) |
| Manufacturers | Technamm (CAGE FAR29); Bae Systems Hagglunds Aktiebolag (CAGE AC90N); Hellgeth Engineering Spezialfahrzeugbau Gmbh (CAGE CJ802); Skf Usa Inc. (CAGE 52676) |
| Parameter | Value |
|---|---|
| NSN | 5310-01-165-4750 |
| Primary Part Number | HE011230 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Technamm |
| 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 |
|---|---|
| HE011230 | Technamm (FRA) |
| 2154 2311-228 | Bae Systems Hagglunds Aktiebolag (SWE) |
| 011230 | Hellgeth Engineering Spezialfahrzeugbau Gmbh (DEU) |
| MB12 | Skf Usa Inc. (USA) |
| Reference | Meaning |
|---|---|
| 445-9967 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 90835-991 | 3/9 Design control — primary reference U.s. Defense Services, Inc. Dba Usds |
| 21542311-228 | 5/9 Secondary reference Macgregor Usa Inc. Div Macgregor Usa |
| 2154 2311-228 TAKR 287 | 5/9 Secondary reference Macgregor Usa Inc. Div Macgregor Usa |
| 21542311-228 | 5/9 Secondary reference Bae Systems Hagglunds Ab |
| 90835-991 | C/1 Advisory reference — outside the item-of-supply concept Amz Alabama Inc. |
NSN 5310-01-165-4750 is a Washer,key, manufactured by Technamm, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-165-4750 has 4 manufacturer part numbers on file: HE011230 (Technamm), 2154 2311-228 (Bae Systems Hagglunds Aktiebolag), 011230 (Hellgeth Engineering Spezialfahrzeugbau Gmbh), MB12 (Skf Usa Inc.).
4 possible matches (shared part number, not a government interchangeability claim): 6635-01-279-2000, 5330-01-425-1906, 7320-01-506-7304. 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.