The Stud,stepped, cataloged under National Stock Number 5307-01-292-8381, is classified within Federal Supply Class 5307 (Studs) of the Hardware and Abrasives group. The manufacturer of record is O T S I. Government technical data includes 14 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 | 5307-01-292-8381 |
| Primary Part Number | B47522 |
| Item Name | Stud,stepped |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | O T S I |
| Status | ACTIVE |
| Thread Length | 0.375 INCHES MINIMUM NUT THREAD IN |
| Thread Length | 1.250 INCHES NOMINAL STUD THREAD IN |
| Material Document and Classification | AISI ASSN STD SINGLE MATERIAL RESPONSE |
| Thread Direction | RIGHT-HAND STUD THREAD |
| Thread Direction | RIGHT-HAND NUT THREAD |
| Nominal Thread Size | 0.250 INCHES STUD THREAD IN |
| Nominal Thread Size | 0.190 INCHES NUT THREAD IN |
| Thread Class | 2A STUD THREAD A |
| Thread Class | 2A NUT THREAD A |
| Thread Quantity Per Inch | 32 NUT THREAD |
| Thread Quantity Per Inch | 20 STUD THREAD |
| Material | STEEL COMP 303 |
| 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 |
|---|---|
| B47522 PRIMARY | O T S I (USA) |
NSN 5307-01-292-8381 is a Stud,stepped, manufactured by O T S I, classified under FSC 5307, Studs. Status: active.
NSN 5307-01-292-8381 has 1 manufacturer part number on file: B47522 (O T S I).
Key specifications for B47522: Thread Length: 0.375 INCHES MINIMUM NUT THREAD IN; Thread Length: 1.250 INCHES NOMINAL STUD THREAD IN; Material Document and Classification: AISI ASSN STD SINGLE MATERIAL RESPONSE; Overall Length: 2.250 INCHES NOMINAL IN. 14 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.