The Stud,plain, cataloged under National Stock Number 5307-00-673-3281, is classified within Federal Supply Class 5307 (Studs) of the Hardware and Abrasives group. Government technical data includes 16 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5307-00-673-3281 |
| Item Name | Stud,plain |
| FSC / FSG | 5307 / 53 — Studs |
| Status | ACTIVE |
| Thread Length | 0.640 INCHES MAXIMUM NUT THREAD IN |
| Thread Length | 1.020 INCHES MAXIMUM STUD THREAD IN |
| Hardness Rating | 27.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM |
| Thread Pitch Diameters | +0.3945 TO 0.3971 INCHES STUD THREAD IN |
| Material Document and Classification | AMS 6322 ASSN STD SINGLE MATERIAL RESPONSE |
| Thread Direction | RIGHT-HAND STUD THREAD |
| Thread Direction | RIGHT-HAND NUT THREAD |
| Nominal Thread Size | 0.438 INCHES NUT THREAD IN |
| Nominal Thread Size | 0.438 INCHES STUD THREAD IN |
| Surface Treatment | CADMIUM OVERALL |
| Thread Class | 3A NUT THREAD A |
| Thread Quantity Per Inch | 20 NUT THREAD |
| Thread Quantity Per Inch | 14 STUD THREAD |
| Material | STEEL COMP 8740 |
| Thread Series Designator | UNF NUT THREAD |
| Thread Series Designator | UNS STUD THREAD |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 531145 | 3/9 Design control — primary reference Teledyne Industries Inc Teledyne Power Systems Div |
NSN 5307-00-673-3281 is a Stud,plain, classified under FSC 5307, Studs. Status: active.
Key specifications for 5307-00-673-3281: Thread Length: 0.640 INCHES MAXIMUM NUT THREAD IN; Thread Length: 1.020 INCHES MAXIMUM STUD THREAD IN; Hardness Rating: 27.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM; Thread Pitch Diameters: +0.3945 TO 0.3971 INCHES STUD THREAD IN. 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.