The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-01-672-1809, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Mcmaster-Carr Supply Co. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-01-672-1809 |
| Primary Part Number | 96278A515 |
| Item Name | Nut,self-Locking,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Mcmaster-Carr Supply Co |
| Status | ACTIVE |
| Width Across Flats | 0.44 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | A380 INTERNATIONAL STD/SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNF |
| Nominal Thread Size | 0.25 INCHES IN |
| Nut Height | 0.23 INCHES NOMINAL IN |
| Nut Style | HEXAGON |
| Thread Class | 2B |
| Thread Quantity Per Inch | 28 |
| Material | STEEL CORROSION RESISTING 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 |
|---|---|
| 96278A515 PRIMARY | Mcmaster-Carr Supply Co (USA) |
| 4350768 75Q65 PRIMARY | Oshkosh Defense Llc (USA) |
| Reference | Meaning |
|---|---|
| 4350768 | 7/2 Vendor item drawing reference Oshkosh Defense Llc |
NSN 5310-01-672-1809 is a Nut,self-Locking,hexagon, manufactured by Mcmaster-Carr Supply Co, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-672-1809 has 2 manufacturer part numbers on file: 96278A515 (Mcmaster-Carr Supply Co), 4350768 75Q65 (Oshkosh Defense Llc).
Key specifications for 96278A515: Width Across Flats: 0.44 INCHES NOMINAL IN; Surface Treatment Document and Classification: A380 INTERNATIONAL STD/SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Series: UNF; Nominal Thread Size: 0.25 INCHES IN. 9 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.