The Stud,locked in, cataloged under National Stock Number 5307-01-087-4325, 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 18 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5307-01-087-4325 |
| Primary Part Number | TR24033 |
| Item Name | Stud,locked in |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | Howmet Global Fastening Systems Inc. Div Tridair Products |
| Status | ACTIVE |
| Thread Length | 0.310 INCHES NOMINAL STUD THREAD IN |
| Thread Length | 0.500 INCHES NOMINAL NUT THREAD IN |
| Style Designator | LOCKED IN |
| Material Document and Classification | AMS 5734 ASSN STD SINGLE MATERIAL RESPONSE |
| 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 |
| Shoulder Diameter | 0.186 INCHES MINIMUM AND 0.189 INCHES MAXIMUM IN |
| Locking Feature | GRIPPING PRONGS |
| Thread Class | 2A STUD THREAD A |
| Thread Class | 3A NUT THREAD A |
| Distance From Shoulder Portion to Nut End | 2.800 INCHES NOMINAL IN |
| Thread Quantity Per Inch | 32 NUT THREAD |
| Thread Quantity Per Inch | 18 STUD THREAD |
| Material | STEEL |
| Thread Series Designator | UNF NUT THREAD |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) STUD 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 |
|---|---|
| TR24033 PRIMARY | Howmet Global Fastening Systems Inc. Div Tridair Products (USA) |
| Reference | Meaning |
|---|---|
| 4041T37P01 | 1/2 Source control — Government-approved source U.S. Government activity |
NSN 5307-01-087-4325 is a Stud,locked in, manufactured by Howmet Global Fastening Systems Inc. Div Tridair Products, classified under FSC 5307, Studs. Status: active.
NSN 5307-01-087-4325 has 1 manufacturer part number on file: TR24033 (Howmet Global Fastening Systems Inc. Div Tridair Products).
Key specifications for TR24033: Thread Length: 0.310 INCHES NOMINAL STUD THREAD IN; Thread Length: 0.500 INCHES NOMINAL NUT THREAD IN; Style Designator: LOCKED IN; Material Document and Classification: AMS 5734 ASSN STD SINGLE MATERIAL RESPONSE. 18 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.