The Nut,plain,hexagon, cataloged under National Stock Number 5310-01-564-3665, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Fastenal Company Dba Fastenal Co. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-564-3665 |
| Primary Part Number | 36256 |
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Fastenal Company Dba Fastenal Co |
| Status | ACTIVE |
| Width Across Flats | 0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | ASTM F1941 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNF |
| Material Document and Classification | ASTM A563 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.375 INCHES IN |
| Nut Height | 0.210 INCHES MINIMUM AND 0.227 INCHES MAXIMUM IN |
| Surface Treatment | ZINC OVERALL |
| Nut Style | HEXAGON |
| Thread Class | 2B |
| Thread Quantity Per Inch | 24 |
| 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 |
|---|---|
| 36256 PRIMARY | Fastenal Company Dba Fastenal Co (USA) |
NSN 5310-01-564-3665 is a Nut,plain,hexagon, manufactured by Fastenal Company Dba Fastenal Co, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-564-3665 has 1 manufacturer part number on file: 36256 (Fastenal Company Dba Fastenal Co).
1 possible match (shared part number, not a government interchangeability claim): 4730-01-572-2771. Verify interchangeability with system specifications before substitution.
Key specifications for 36256: Width Across Flats: 0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN; Surface Treatment Document and Classification: ASTM F1941 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Thread Series: UNF; Material Document and Classification: ASTM A563 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 12 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.