The Stud,locked in, cataloged under National Stock Number 5307-00-030-4489, is classified within Federal Supply Class 5307 (Studs) of the Hardware and Abrasives group. Government technical data includes 25 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5307-00-030-4489 |
| Item Name | Stud,locked in |
| FSC / FSG | 5307 / 53 — Studs |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES NUT THD |
| Surface Finish | 125.0 MICROINCHES STUD THD |
| Surface Finish | 62.0 MICROINCHES SHANK |
| Surface Treatment Document and Classification | AMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Distance From Serrated Portion to Nut End | 1.110 INCHES MINIMUM AND 1.140 INCHES MAXIMUM IN |
| Thread Length | 0.495 INCHES MINIMUM AND 0.525 INCHES MAXIMUM STUD THREAD IN |
| Thread Length | 0.545 INCHES MINIMUM AND 0.575 INCHES MAXIMUM NUT THREAD IN |
| Hardness Rating | 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM |
| Style Designator | LOCKED IN |
| Thread Pitch Diameters | +0.3358 TO 0.3378 INCHES STUD THREAD IN |
| Material Document and Classification | AMS 6370 ASSN STD SINGLE MATERIAL RESPONSE |
| Distance From Serrated Portion to End of Stud Thread | 0.165 INCHES MINIMUM AND 0.195 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND STUD THREAD |
| Thread Direction | RIGHT-HAND NUT THREAD |
| Nominal Thread Size | 0.312 INCHES NUT THREAD IN |
| Nominal Thread Size | 0.375 INCHES STUD THREAD IN |
| Distance From Serrated Portion to Stud End | 0.675 INCHES MINIMUM AND 0.705 INCHES MAXIMUM IN |
| Locking Feature | RING, LOCK SERRATED |
| Surface Treatment | CADMIUM OVERALL |
| Thread Class | 3A NUT THREAD A |
| Thread Quantity Per Inch | 24 NUT THREAD |
| Thread Quantity Per Inch | 16 STUD THREAD |
| Material | STEEL COMP 4130 |
| 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 |
|---|---|
| RZA11442-18 | 5/2 Secondary reference U.S. Government activity |
| R1375P018 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5307-00-030-4489 is a Stud,locked in, classified under FSC 5307, Studs. Status: active.
Key specifications for 5307-00-030-4489: Surface Finish: 32.0 MICROINCHES NUT THD; Surface Finish: 125.0 MICROINCHES STUD THD; Surface Finish: 62.0 MICROINCHES SHANK; Surface Treatment Document and Classification: AMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL. 25 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.