The Stud,locked in, cataloged under National Stock Number 5307-01-643-6129, 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 Tridair Products. Government technical data includes 13 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5307-01-643-6129 |
| Primary Part Number | TR24671-428-14 |
| Item Name | Stud,locked in |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | Howmet Global Fastening Systems Inc. Div Tridair Products |
| Status | ACTIVE |
| Thread Length | 0.375 INCHES NOMINAL NUT THREAD A IN |
| Thread Length | 0.560 INCHES NOMINAL NUT THREAD B IN |
| Thread Direction | RIGHT-HAND NUT THREAD A |
| Thread Direction | RIGHT-HAND NUT THREAD B |
| Nominal Thread Size | 0.375 INCHES NUT THREAD B IN |
| Nominal Thread Size | 0.25 INCHES NUT THREAD A IN |
| Locking Feature | KEY INSERTS |
| Thread Class | 3A NUT THREAD A A |
| Thread Class | 2A NUT THREAD B A |
| Thread Quantity Per Inch | 16 NUT THREAD B |
| Thread Quantity Per Inch | 28 NUT THREAD A |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) NUT THREAD B |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) NUT THREAD A |
| 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 |
|---|---|
| TR24671-428-14 PRIMARY | Howmet Global Fastening Systems Inc. Div Tridair Products (USA) |
NSN 5307-01-643-6129 is a Stud,locked in, manufactured by Howmet Global Fastening Systems Inc. Div Tridair Products, classified under FSC 5307, Studs. Status: active.
NSN 5307-01-643-6129 has 1 manufacturer part number on file: TR24671-428-14 (Howmet Global Fastening Systems Inc. Div Tridair Products).
Key specifications for TR24671-428-14: Thread Length: 0.375 INCHES NOMINAL NUT THREAD A IN; Thread Length: 0.560 INCHES NOMINAL NUT THREAD B IN; Thread Direction: RIGHT-HAND NUT THREAD A; Thread Direction: RIGHT-HAND NUT THREAD B. 13 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.