The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-01-126-1638, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Cmv Truck and Bus Pty Ltd. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-126-1638 |
| Primary Part Number | 21AX785 |
| Item Name | Nut,self-Locking,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Cmv Truck and Bus Pty Ltd |
| Status | ACTIVE |
| Thread Series | UNF |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.625 INCHES IN |
| Surface Treatment | ZINC OVERALL |
| Thread Class | 2B |
| Thread Quantity Per Inch | 18 |
| Material | STEEL OVERALL |
| 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 |
|---|---|
| 21AX785 | Cmv Truck and Bus Pty Ltd (AUS) |
| 25109334 | Volvo Group Government Sales Oceani Oceania Volvo Group Government Sales (AUS) |
| 02320-0242 | Asrc Federal Facilities Logistics, Llc (USA) |
| Reference | Meaning |
|---|---|
| 02320-0242 | 5/9 Secondary reference U.S. Government activity |
| 21AX785 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-01-126-1638 is a Nut,self-Locking,hexagon, manufactured by Cmv Truck and Bus Pty Ltd, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-126-1638 has 3 manufacturer part numbers on file: 21AX785 (Cmv Truck and Bus Pty Ltd), 25109334 (Volvo Group Government Sales Oceani Oceania Volvo Group Government Sales), 02320-0242 (Asrc Federal Facilities Logistics, Llc).
Key specifications for 21AX785: Thread Series: UNF; Thread Direction: RIGHT-HAND; Nominal Thread Size: 0.625 INCHES IN; Surface Treatment: ZINC OVERALL. 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.