The Stud,locked in, cataloged under National Stock Number 5307-01-211-0770, is classified within Federal Supply Class 5307 (Studs) of the Hardware and Abrasives group. Government technical data includes 24 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5307-01-211-0770 |
| Item Name | Stud,locked in |
| FSC / FSG | 5307 / 53 — Studs |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES NUT THD |
| Surface Treatment Document and Classification | QQ-P-416,TYPE 2 CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Distance From Serrated Portion to Nut End | 0.735 INCHES MINIMUM AND 0.765 INCHES MAXIMUM IN |
| Thread Length | 0.215 INCHES MINIMUM AND 0.245 INCHES MAXIMUM STUD THREAD IN |
| Thread Length | 0.395 INCHES MINIMUM AND 0.425 INCHES MAXIMUM NUT THREAD IN |
| Hardness Rating | 26.0 ROCKWELL C MINIMUM |
| Style Designator | LOCKED IN |
| Thread Pitch Diameters | +0.1639 TO 0.1654 INCHES STUD THREAD IN |
| Material Document and Classification | MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE |
| Distance From Serrated Portion to End of Stud Thread | 0.120 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN |
| Serration Included Angle | 90.0 DEGREES NOMINAL |
| Thread Direction | RIGHT-HAND STUD THREAD |
| Thread Direction | RIGHT-HAND NUT THREAD |
| Nominal Thread Size | 0.190 INCHES STUD THREAD IN |
| Nominal Thread Size | 0.164 INCHES NUT THREAD IN |
| Distance From Serrated Portion to Stud End | 0.365 INCHES MINIMUM AND 0.395 INCHES MAXIMUM IN |
| Locking Feature | RING, LOCK SERRATED |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Thread Class | 3A NUT THREAD A |
| Thread Quantity Per Inch | 32 NUT THREAD |
| Thread Quantity Per Inch | 24 STUD THREAD |
| Material | STEEL COMP 4130 |
| 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 |
| Reference | Meaning |
|---|---|
| MS51989-303-12 | 3/2 Design control — primary reference U.S. Government activity |
| NASM51989 | 5/1 Secondary reference U.S. Government activity |
| MS51989-303-12 | 5/9 Secondary reference U.S. Government activity |
NSN 5307-01-211-0770 is a Stud,locked in, classified under FSC 5307, Studs. Status: active.
Key specifications for 5307-01-211-0770: Surface Finish: 32.0 MICROINCHES NUT THD; Surface Treatment Document and Classification: QQ-P-416,TYPE 2 CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Distance From Serrated Portion to Nut End: 0.735 INCHES MINIMUM AND 0.765 INCHES MAXIMUM IN; Thread Length: 0.215 INCHES MINIMUM AND 0.245 INCHES MAXIMUM STUD THREAD IN. 24 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.