The Stud,locked in, cataloged under National Stock Number 5307-01-370-7086, is classified within Federal Supply Class 5307 (Studs) of the Hardware and Abrasives group. The manufacturer of record is Howmet Global Fastening Systems Inc. Div Microdot Products. Government technical data includes 21 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5307-01-370-7086 |
| Primary Part Number | KLSS10151-3-15 |
| Item Name | Stud,locked in |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | Howmet Global Fastening Systems Inc. Div Microdot Products |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES OVERALL |
| Surface Finish | 32.0 MICROINCHES BALL END |
| Thread Length | 0.292 INCHES NOMINAL STUD THREAD IN |
| Thread Length | 1.779 INCHES NOMINAL NUT THREAD IN |
| Hardness Rating | 48.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM |
| Style Designator | LOCKED IN |
| Material Document and Classification | AMS 5506 ASSN STD 1ST MATERIAL RESPONSE AND CAMS 5737 ASSN STD 1ST MATERIAL RESPONSE |
| Thread Direction | RIGHT-HAND STUD THREAD |
| Thread Direction | RIGHT-HAND NUT THREAD |
| Nominal Thread Size | 0.250 INCHES NUT THREAD IN |
| Nominal Thread Size | 0.312 INCHES STUD THREAD IN |
| Shoulder Diameter | 0.239 INCHES MINIMUM AND 0.249 INCHES MAXIMUM IN |
| Locking Feature | KEY INSERTS |
| Thread Class | 3A LOCATION NOT OTHERWISE SPECIFIED A |
| Distance From Shoulder Portion to Nut End | 1.795 INCHES MINIMUM AND 1.815 INCHES MAXIMUM IN |
| Thread Quantity Per Inch | 24 STUD THREAD |
| Thread Quantity Per Inch | 28 NUT THREAD |
| Material | STEEL COMP 420 AND IRON ALLOY 660 |
| Shoulder Length | 0.035 INCHES MINIMUM AND 0.045 INCHES MAXIMUM IN |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) 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 |
|---|---|
| J1131P15 | General Electric Company (USA) |
| KLSS10151-3-15 | Howmet Global Fastening Systems Inc. Div Tridair Products (USA) |
| KLSS10151-3-15 PRIMARY | Howmet Global Fastening Systems Inc. Div Microdot Products (USA) |
| Reference | Meaning |
|---|---|
| 21131-15 | 5/9 Secondary reference Stanley Engineered Fastening Llc |
NSN 5307-01-370-7086 is a Stud,locked in, manufactured by Howmet Global Fastening Systems Inc. Div Microdot Products, classified under FSC 5307, Studs. Status: active.
NSN 5307-01-370-7086 has 3 manufacturer part numbers on file: J1131P15 (General Electric Company), KLSS10151-3-15 (Howmet Global Fastening Systems Inc. Div Tridair Products), KLSS10151-3-15 (Howmet Global Fastening Systems Inc. Div Microdot Products).
Key specifications for KLSS10151-3-15: Surface Finish: 32.0 MICROINCHES OVERALL; Surface Finish: 32.0 MICROINCHES BALL END; Thread Length: 0.292 INCHES NOMINAL STUD THREAD IN; Thread Length: 1.779 INCHES NOMINAL NUT THREAD IN. 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.