The Stud,stepped, cataloged under National Stock Number 5307-01-643-9595, 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 8 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 | 5307-01-643-9595 |
| Primary Part Number | TR24636-524-21 |
| Item Name | Stud,stepped |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | Howmet Global Fastening Systems Inc. Div Tridair Products |
| Status | ACTIVE |
| Shank Diameter | 0.187 INCHES NOMINAL IN |
| Thread Length | 1.140 INCHES MINIMUM NUT THREAD IN |
| Style Designator | STEPPED |
| Nominal Thread Size | 0.197 INCHES NUT THREAD IN |
| Thread Class | 3A NUT THREAD A |
| Thread Quantity Per Inch | 24 NUT THREAD |
| Material | STEEL COMP 8630 |
| Thread Series Designator | UNF 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 |
|---|---|
| TR24636-524-21 PRIMARY | Howmet Global Fastening Systems Inc. Div Tridair Products (USA) |
NSN 5307-01-643-9595 is a Stud,stepped, manufactured by Howmet Global Fastening Systems Inc. Div Tridair Products, classified under FSC 5307, Studs. Status: active.
NSN 5307-01-643-9595 has 1 manufacturer part number on file: TR24636-524-21 (Howmet Global Fastening Systems Inc. Div Tridair Products).
Key specifications for TR24636-524-21: Shank Diameter: 0.187 INCHES NOMINAL IN; Thread Length: 1.140 INCHES MINIMUM NUT THREAD IN; Style Designator: STEPPED; Overall Length: 0.030 INCHES NOMINAL IN. 8 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.