The Stud,lock Pin Fastener, cataloged under National Stock Number 5325-01-516-7292, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is O T S I. 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 | 5325-01-516-7292 |
| Primary Part Number | B71645 |
| Item Name | Stud,lock Pin Fastener |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | O T S I |
| Status | ACTIVE |
| Fastener Stud Shank Length | 2.250 INCHES NOMINAL IN |
| Length From Body Shoulder to Hole Center | 1.9385 INCHES NOMINAL IN |
| Fastener Stud Shank Diameter | 0.466 INCHES MINIMUM AND 0.470 INCHES MAXIMUM IN |
| Fastener Style | LOCK PIN |
| Stud Body Diameter | 0.494 INCHES MINIMUM AND 0.499 INCHES MAXIMUM IN |
| Pinhole Diameter | 0.156 INCHES MINIMUM AND 0.460 INCHES MAXIMUM IN |
| Length From Body Hole Center to Body End | 0.3125 INCHES NOMINAL IN |
| Thread Size and Series/type Designator | 0.500-13 UNIFIED NATIONAL COARSE (UNC) |
| 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 |
|---|---|
| B71645 PRIMARY | O T S I (USA) |
NSN 5325-01-516-7292 is a Stud,lock Pin Fastener, manufactured by O T S I, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-516-7292 has 1 manufacturer part number on file: B71645 (O T S I).
Key specifications for B71645: Fastener Stud Shank Length: 2.250 INCHES NOMINAL IN; Length From Body Shoulder to Hole Center: 1.9385 INCHES NOMINAL IN; Fastener Stud Shank Diameter: 0.466 INCHES MINIMUM AND 0.470 INCHES MAXIMUM IN; Fastener Style: LOCK PIN. 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.