The Nut,plain,hexagon, cataloged under National Stock Number 5310-00-920-7285, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Brinkley Technology Group Llc Dba Hercules Manufacturing. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5310-00-920-7285 |
| Primary Part Number | 203446 |
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Brinkley Technology Group Llc Dba Hercules Manufacturing |
| Status | ACTIVE |
| Width Across Flats | 0.875 INCHES NOMINAL IN |
| Thread Series | UNF |
| Hardness Rating | 271.0 BRINELL HULTGREN MINIMUM |
| Material Document and Classification | FED STD 66,AISI/SAE 3140 ASSN STD 1ST MATERIAL RESPONSE OR FED STD 66,AISI/SAE 4140 ASSN STD 2ND MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.625 INCHES IN |
| Nut Height | 0.811 INCHES MINIMUM AND 0.814 INCHES MAXIMUM IN |
| Nut Style | HEXAGON |
| Thread Class | 3B |
| Thread Quantity Per Inch | 18 |
| Material | STEEL COMP 3140 OR STEEL COMP 4140 OVERALL |
| Bearing Surface Type | CHAMFERED |
| 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 |
|---|---|
| 203446 PRIMARY | Brinkley Technology Group Llc Dba Hercules Manufacturing (USA) |
| Reference | Meaning |
|---|---|
| 203446 | 5/9 Secondary reference Hercules Engine Co Inc |
NSN 5310-00-920-7285 is a Nut,plain,hexagon, manufactured by Brinkley Technology Group Llc Dba Hercules Manufacturing, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-920-7285 has 1 manufacturer part number on file: 203446 (Brinkley Technology Group Llc Dba Hercules Manufacturing).
1 possible match (shared part number, not a government interchangeability claim): 5330-01-478-5185. Verify interchangeability with system specifications before substitution.
Key specifications for 203446: Width Across Flats: 0.875 INCHES NOMINAL IN; Thread Series: UNF; Hardness Rating: 271.0 BRINELL HULTGREN MINIMUM; Material Document and Classification: FED STD 66,AISI/SAE 3140 ASSN STD 1ST MATERIAL RESPONSE OR FED STD 66,AISI/SAE 4140 ASSN STD 2ND 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.