The Stud,locked in, cataloged under National Stock Number 5307-01-734-0051, 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 22 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5307-01-734-0051 |
| Primary Part Number | MS51989E204-7 |
| Item Name | Stud,locked in |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Surface Treatment Document and Classification | METHOD 1,TYPE 2 OR 8 INTERNATIONAL STD/SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Distance From Serrated Portion to Nut End | 0.423 INCHES MINIMUM AND 0.453 INCHES MAXIMUM IN |
| Thread Length | 0.423 INCHES MINIMUM AND 0.453 INCHES MAXIMUM NUT THREAD IN |
| Thread Length | 0.295 INCHES MINIMUM AND 0.325 INCHES MAXIMUM STUD THREAD IN |
| Style Designator | LOCKED IN |
| Material Document and Classification | AMS5731,5732,5734 OR 5737 AEROSPACE MATERIAL SPEC STD SINGLE MATERIAL RESPONSE |
| Distance From Serrated Portion to End of Stud Thread | 0.065 INCHES MINIMUM AND 0.095 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND STUD THREAD |
| Thread Direction | RIGHT-HAND NUT THREAD |
| Nominal Thread Size | 0.2500 INCHES STUD THREAD IN |
| Nominal Thread Size | 0.1900 INCHES NUT THREAD IN |
| Specification/standard Data | 0U583-SAE AS51989 INTERNATIONAL STD/SPEC |
| Distance From Serrated Portion to Stud End | 0.295 INCHES MINIMUM AND 0.325 INCHES MAXIMUM IN |
| Locking Feature | RING, LOCK SERRATED |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 3A NUT THREAD A |
| Thread Class | 3A STUD THREAD A |
| Thread Quantity Per Inch | 28 STUD THREAD |
| Thread Quantity Per Inch | 32 NUT THREAD |
| Material | IRON ALLOY 660 |
| Thread Series Designator | UNF 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 |
| Part Number | Manufacturer |
|---|---|
| MS51989E204-7 PRIMARY | Sae International Dba Sae International (USA) |
| Reference | Meaning |
|---|---|
| SAE AS51989 | 3/1 Design control — primary reference Sae International Dba Sae International |
| MS51989E204-7 | 5/9 Secondary reference U.S. Government activity |
| MS51989E204-7 | 5/9 Secondary reference U.S. Government activity |
NSN 5307-01-734-0051 is a Stud,locked in, manufactured by Sae International Dba Sae International, classified under FSC 5307, Studs. Status: active.
NSN 5307-01-734-0051 has 1 manufacturer part number on file: MS51989E204-7 (Sae International Dba Sae International).
Key specifications for MS51989E204-7: Surface Treatment Document and Classification: METHOD 1,TYPE 2 OR 8 INTERNATIONAL STD/SPEC SINGLE TREATMENT RESPONSE OVERALL; Distance From Serrated Portion to Nut End: 0.423 INCHES MINIMUM AND 0.453 INCHES MAXIMUM IN; Thread Length: 0.423 INCHES MINIMUM AND 0.453 INCHES MAXIMUM NUT THREAD IN; Thread Length: 0.295 INCHES MINIMUM AND 0.325 INCHES MAXIMUM STUD THREAD IN. 22 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.