The Nut,plain,round, cataloged under National Stock Number 5310-00-845-7639, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Westinghouse Electric Corp. Government technical data includes 17 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-845-7639 |
| Primary Part Number | 922B337-1 |
| Item Name | Nut,plain,round |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Westinghouse Electric Corp |
| Status | ACTIVE |
| Thread Series | UNS |
| Hardness Rating | 48.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM |
| Material Document and Classification | QQ-S-624 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nut Counterbore Depth | 0.047 INCHES MINIMUM AND 0.078 INCHES MAXIMUM NUT IN |
| Drive Point Width | 0.172 INCHES MINIMUM AND 0.203 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.969 INCHES IN |
| Nut Diameter | 1.547 INCHES MINIMUM AND 1.578 INCHES MAXIMUM IN |
| Counterbore Diameter | 0.984 INCHES MINIMUM AND 1.016 INCHES MAXIMUM NUT IN |
| Drive Point Depth | 0.078 INCHES MINIMUM AND 0.109 INCHES MAXIMUM IN |
| Nut Thickness | 0.308 INCHES MINIMUM AND 0.318 INCHES MAXIMUM IN |
| Surface Treatment | CHROMIUM OVERALL |
| Drive Point Quantity | 4 |
| Nut Style | ROUND |
| Thread Class | 2B |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP 4140 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 |
|---|---|
| 922B337-1 | Westinghouse Electric Corp (USA) |
| Reference | Meaning |
|---|---|
| 922B337-1 | 5/9 Secondary reference U.S. Government activity |
| 922B337-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-00-845-7639 is a Nut,plain,round, manufactured by Westinghouse Electric Corp, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-845-7639 has 1 manufacturer part number on file: 922B337-1 (Westinghouse Electric Corp).
Key specifications for 922B337-1: Thread Series: UNS; Hardness Rating: 48.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM; Material Document and Classification: QQ-S-624 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Nut Counterbore Depth: 0.047 INCHES MINIMUM AND 0.078 INCHES MAXIMUM NUT IN. 17 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.