The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-01-166-2109, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Amz Alabama Inc.. Government technical data includes 6 specifications, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-166-2109 |
| Primary Part Number | 90679-991 |
| Item Name | Nut,self-Locking,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Amz Alabama Inc. |
| Status | ACTIVE |
| Width Across Flats | 7.0 MILLIMETERS NOMINAL MM |
| Thread Direction | RIGHT-HAND |
| Nut Height | 4.6 MILLIMETERS NOMINAL MM |
| Nut Style | HEXAGON |
| Material | STEEL OVERALL |
| Bearing Surface Type | FLAT |
| 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 |
|---|---|
| 90679-991 PRIMARY | Amz Alabama Inc. (USA) |
| 21262636-112 | Hagglunds Vehicle Gmbh (DEU) |
| 21262636-112 | Bae Systems Hagglunds Aktiebolag (SWE) |
| 04250985737712 | Hagglunds Vehicle Gmbh (DEU) |
| Reference | Meaning |
|---|---|
| 90679-991 | 5/9 Secondary reference Bryant Commercial Multiple Llc |
| 90679-991 | 3/9 Design control — primary reference U.s. Defense Services, Inc. Dba Usds |
| 21262636-112 | 5/9 Secondary reference Bae Systems Hagglunds Ab |
NSN 5310-01-166-2109 is a Nut,self-Locking,hexagon, manufactured by Amz Alabama Inc., classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-166-2109 has 4 manufacturer part numbers on file: 90679-991 (Amz Alabama Inc.), 21262636-112 (Hagglunds Vehicle Gmbh), 21262636-112 (Bae Systems Hagglunds Aktiebolag), 04250985737712 (Hagglunds Vehicle Gmbh).
Key specifications for 90679-991: Width Across Flats: 7.0 MILLIMETERS NOMINAL MM; Thread Direction: RIGHT-HAND; Nut Height: 4.6 MILLIMETERS NOMINAL MM; Nut Style: HEXAGON. 6 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.