The Stud,plain, cataloged under National Stock Number 5307-01-045-8440, is classified within Federal Supply Class 5307 (Studs) of the Hardware and Abrasives group. The manufacturer of record is Clayton Manufacturing Company. Government technical data includes 16 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 | 5307-01-045-8440 |
| Primary Part Number | UH1491 |
| Item Name | Stud,plain |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | Clayton Manufacturing Company |
| Status | ACTIVE |
| Thread Length | 0.470 INCHES MINIMUM AND 0.500 INCHES MAXIMUM STUD THREAD IN |
| Thread Length | 0.880 INCHES MINIMUM AND 1.000 INCHES MAXIMUM NUT THREAD IN |
| Hardness Rating | 35.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM |
| Material Document and Classification | SAE MIL SPEC SINGLE MATERIAL RESPONSE |
| Thread Direction | RIGHT-HAND STUD THREAD |
| Thread Direction | RIGHT-HAND NUT THREAD |
| Nominal Thread Size | 0.500 INCHES NUT THREAD IN |
| Nominal Thread Size | 0.500 INCHES STUD THREAD IN |
| Surface Treatment | CADMIUM OR ZINC OVERALL |
| Thread Class | 3A STUD THREAD A |
| Thread Class | 2A NUT THREAD A |
| Thread Quantity Per Inch | 13 STUD THREAD |
| Thread Quantity Per Inch | 13 NUT THREAD |
| Material | STEEL COMP 4142 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) STUD THREAD |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) NUT THREAD |
| 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 |
|---|---|
| UH1491 PRIMARY | Clayton Manufacturing Company (USA) |
NSN 5307-01-045-8440 is a Stud,plain, manufactured by Clayton Manufacturing Company, classified under FSC 5307, Studs. Status: active.
NSN 5307-01-045-8440 has 1 manufacturer part number on file: UH1491 (Clayton Manufacturing Company).
Key specifications for UH1491: Thread Length: 0.470 INCHES MINIMUM AND 0.500 INCHES MAXIMUM STUD THREAD IN; Thread Length: 0.880 INCHES MINIMUM AND 1.000 INCHES MAXIMUM NUT THREAD IN; Hardness Rating: 35.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM; Material Document and Classification: SAE MIL SPEC SINGLE MATERIAL RESPONSE. 16 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.