The Stud,locked in, cataloged under National Stock Number 5307-01-528-7805, is classified within Federal Supply Class 5307 (Studs) of the Hardware and Abrasives group. The manufacturer of record is Sae International Dba Sae International. Government technical data includes 20 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5307-01-528-7805 |
| Primary Part Number | MS51992C504-11 |
| Item Name | Stud,locked in |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Surface Treatment Document and Classification | ASTM A380 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Distance From Serrated Portion to Nut End | 0.688 INCHES NOMINAL IN |
| Thread Length | 0.688 INCHES NOMINAL NUT THREAD IN |
| Thread Length | 0.449 INCHES NOMINAL STUD THREAD IN |
| Style Designator | LOCKED IN |
| Thread Pitch Diameters | +0.4084 TO 0.4087 INCHES STUD THREAD IN |
| Material Document and Classification | AMS 5731 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5732 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5734 ASSN STD SINGLE MATERIAL RESPONSE OR AMS5737 ASSN STD SINGLE MATERIAL RESPONSE |
| Distance From Serrated Portion to End of Stud Thread | 0.178 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND STUD THREAD |
| Thread Direction | RIGHT-HAND NUT THREAD |
| Nominal Thread Size | 0.312 INCHES STUD THREAD IN |
| Nominal Thread Size | 0.190 INCHES NUT THREAD IN |
| Distance From Serrated Portion to Stud End | 0.627 INCHES NOMINAL IN |
| Locking Feature | RING, LOCK SERRATED |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 3A NUT THREAD A |
| Thread Quantity Per Inch | 32 NUT THREAD |
| Thread Quantity Per Inch | 24 STUD THREAD |
| Material | STEEL CORROSION RESISTING |
| 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 |
| Part Number | Manufacturer |
|---|---|
| MS51992C504-11 PRIMARY | Sae International Dba Sae International (USA) |
| Reference | Meaning |
|---|---|
| MS51992C504-11 | 3/9 Design control — primary reference U.S. Government activity |
| MS51992C504-11 | 5/9 Secondary reference U.S. Government activity |
NSN 5307-01-528-7805 is a Stud,locked in, manufactured by Sae International Dba Sae International, classified under FSC 5307, Studs. Status: active.
NSN 5307-01-528-7805 has 1 manufacturer part number on file: MS51992C504-11 (Sae International Dba Sae International).
Key specifications for MS51992C504-11: Surface Treatment Document and Classification: ASTM A380 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Distance From Serrated Portion to Nut End: 0.688 INCHES NOMINAL IN; Thread Length: 0.688 INCHES NOMINAL NUT THREAD IN; Thread Length: 0.449 INCHES NOMINAL STUD THREAD IN. 20 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.