The Nut,plain,hexagon, cataloged under National Stock Number 5310-00-649-7010, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Raytheon Company Div Corp. Government technical data includes 13 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 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 | 5310-00-649-7010 |
| Primary Part Number | 2789-1121 |
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Raytheon Company Div Corp |
| Status | ACTIVE |
| Width Across Flats | 0.368 INCHES MINIMUM AND 0.382 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | 171,FIN. 5.4.1 MIL STD SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Material Document and Classification | ASTM A582,CONDITION A ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.250 INCHES IN |
| Nut Height | 0.812 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE OVERALL |
| Nut Style | HEXAGON |
| Thread Class | 2B |
| Thread Quantity Per Inch | 20 |
| Material | STEEL COMP 303 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 |
NSN 5310-00-649-7010 is a Nut,plain,hexagon, manufactured by Raytheon Company Div Corp, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-649-7010 has 2 manufacturer part numbers on file: 2789-1121 (Raytheon Company Div Corp), 9075942 (Us Army Aviation and Missile Command).
1 possible match (shared part number, not a government interchangeability claim): 5330-00-907-5942. Verify interchangeability with system specifications before substitution.
Key specifications for 2789-1121: Width Across Flats: 0.368 INCHES MINIMUM AND 0.382 INCHES MAXIMUM IN; Surface Treatment Document and Classification: 171,FIN. 5.4.1 MIL STD SINGLE TREATMENT RESPONSE OVERALL; Thread Series: UNIFIED NATIONAL COARSE (UNC); Material Document and Classification: ASTM A582,CONDITION A ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 13 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.