The Stud,locked in, cataloged under National Stock Number 5307-01-646-9228, is classified within Federal Supply Class 5307 (Studs) of the Hardware and Abrasives group. Government technical data includes 21 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5307-01-646-9228 |
| Item Name | Stud,locked in |
| FSC / FSG | 5307 / 53 — Studs |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.440 INCHES MINIMUM AND 0.500 INCHES MAXIMUM NUT THREAD IN |
| Thread Length | 0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM STUD THREAD IN |
| Hardness Rating | 29.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM |
| Style Designator | LOCKED IN |
| Material Document and Classification | AAMS5640,TY 1 OR ASTM A582 NATIONAL STD/SPEC 1ST MATERIAL RESPONSE OR AMS5640,TY 2,AMS5738 OR ASTM A582 NATIONAL STD/SPEC 2ND MATERIAL RESPONSE |
| Thread Direction | RIGHT-HAND STUD THREAD |
| Thread Direction | RIGHT-HAND NUT THREAD |
| Distance From End of Stud End Threads to Nut End | 0.720 INCHES MINIMUM AND 0.780 INCHES MAXIMUM IN |
| Nominal Thread Size | 0.250 INCHES NUT THREAD IN |
| Nominal Thread Size | 0.4375 INCHES STUD THREAD IN |
| Specification/standard Data | 80205-NAS-51834 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Locking Feature | KEY INSERTS |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 2A STUD THREAD A |
| Thread Class | 3A NUT THREAD A |
| Thread Quantity Per Inch | 14 STUD THREAD |
| Thread Quantity Per Inch | 28 NUT THREAD |
| Material | STEEL COMP 303 OR STEEL COMP 303SE |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) STUD THREAD |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) 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 |
| Reference | Meaning |
|---|---|
| MS51834C203-12 | 3/2 Design control — primary reference U.S. Government activity |
| MS51834C203-12 | 5/9 Secondary reference U.S. Government activity |
NSN 5307-01-646-9228 is a Stud,locked in, classified under FSC 5307, Studs. Status: active.
Key specifications for 5307-01-646-9228: Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.440 INCHES MINIMUM AND 0.500 INCHES MAXIMUM NUT THREAD IN; Thread Length: 0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM STUD THREAD IN; Hardness Rating: 29.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM. 21 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.