The Nut,sleeve, cataloged under National Stock Number 5310-01-426-3137, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Unicorp.. Government technical data includes 19 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-426-3137 |
| Primary Part Number | 42R31-M07-F09 |
| Item Name | Nut,sleeve |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Unicorp. |
| Status | ACTIVE |
| Nut Length | 0.370 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Material Document and Classification | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nut Counterbore Depth | 0.088 INCHES MINIMUM AND 0.098 INCHES MAXIMUM NUT IN |
| Nut Counterbore Depth | 0.427 INCHES MINIMUM AND 0.442 INCHES MAXIMUM BOSS IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.250 INCHES IN |
| Nut Diameter | 0.528 INCHES MINIMUM AND 0.534 INCHES MAXIMUM IN |
| Counterbore Diameter | 0.312 INCHES MINIMUM AND 0.317 INCHES MAXIMUM NUT IN |
| Counterbore Diameter | 0.374 INCHES MINIMUM AND 0.377 INCHES MAXIMUM BOSS IN |
| Boss Thickness | 0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM OVERALL IN |
| Cross-Sectional Shape | ROUND NUT |
| Cross-Sectional Shape | ROUND BOSS |
| Boss Diameter | 0.430 INCHES MINIMUM AND 0.433 INCHES MAXIMUM OVERALL IN |
| Surface Treatment | PASSIVATE OVERALL |
| Nut Style | SLEEVE |
| Thread Class | 2B |
| Thread Quantity Per Inch | 20 |
| Material | STEEL COMP 303 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 |
|---|---|
| 42R31-M07-F09 PRIMARY | Unicorp. (USA) |
NSN 5310-01-426-3137 is a Nut,sleeve, manufactured by Unicorp., classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-426-3137 has 1 manufacturer part number on file: 42R31-M07-F09 (Unicorp.).
Key specifications for 42R31-M07-F09: Nut Length: 0.370 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN; Thread Series: UNIFIED NATIONAL COARSE (UNC); Material Document and Classification: QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Nut Counterbore Depth: 0.088 INCHES MINIMUM AND 0.098 INCHES MAXIMUM NUT IN. 19 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.