The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-01-649-9628, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is The American Society of Mechanical Engineers. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-649-9628 |
| Primary Part Number | B18.16.6 |
| Item Name | Nut,self-Locking,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | The American Society of Mechanical Engineers |
| Status | ACTIVE |
| Width Across Flats | 1.427 INCHES MINIMUM AND 1.440 INCHES MAXIMUM IN |
| Hole Configuration Style | CONFIGURATION A |
| Thread Direction | RIGHT-HAND |
| Nut Height | 0.825 INCHES NOMINAL IN |
| Surface Treatment | ZINC OVERALL |
| Nut Style | HEXAGON |
| Material | STEEL NUT |
| 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 |
|---|---|
| B18.16.6 PRIMARY | The American Society of Mechanical Engineers (USA) |
| NNZSC525-01 | Haulmark Trailers (australia) Pty Ltd (AUS) |
| NNG5ZC100 | Hobson Engineering Co Pty Ltd (AUS) |
| Reference | Meaning |
|---|---|
| 41994 | 5/9 Secondary reference James Glen Pty Ltd |
NSN 5310-01-649-9628 is a Nut,self-Locking,hexagon, manufactured by The American Society of Mechanical Engineers, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-649-9628 has 3 manufacturer part numbers on file: B18.16.6 (The American Society of Mechanical Engineers), NNZSC525-01 (Haulmark Trailers (australia) Pty Ltd), NNG5ZC100 (Hobson Engineering Co Pty Ltd).
Key specifications for B18.16.6: Width Across Flats: 1.427 INCHES MINIMUM AND 1.440 INCHES MAXIMUM IN; Hole Configuration Style: CONFIGURATION A; Thread Direction: RIGHT-HAND; Nut Height: 0.825 INCHES NOMINAL IN. 7 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.