The Stud,lock Pin Fastener, cataloged under National Stock Number 5325-01-641-4973, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-641-4973 |
| Primary Part Number | 167-7563785 PC 110 |
| Item Name | Stud,lock Pin Fastener |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Fastener Stud Shank Length | 0.4375 INCHES NOMINAL IN |
| Length From Body Shoulder to Hole Center | 0.8906 INCHES NOMINAL IN |
| Fastener Stud Shank Diameter | 0.501 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN |
| Fastener Style | LOCK PIN |
| Stud Body Diameter | 0.732 INCHES MINIMUM AND 0.734 INCHES MAXIMUM IN |
| Pinhole Diameter | 0.1406 INCHES NOMINAL IN |
| Length From Body Hole Center to Body End | 0.4219 INCHES NOMINAL IN |
| Thread Size and Series/type Designator | 0.625-18UNF-2A UNF 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 |
|---|---|
| 167-7563785 PC 110 PRIMARY | Naval Sea Systems Command (USA) |
| 167-8278268 ITEM 19 | Naval Sea Systems Command (USA) |
| 803-6397269 ITEM 84 PRIMARY | Naval Sea Systems Command (USA) |
| 167-8278275 ITEM 19 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 803-6397269 | D/9 Drawing number reference only Naval Sea Systems Command |
| 167-8278268 | D/9 Drawing number reference only Naval Sea Systems Command |
| 167-8278275 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 5325-01-641-4973 is a Stud,lock Pin Fastener, manufactured by Naval Sea Systems Command, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-641-4973 has 4 manufacturer part numbers on file: 167-7563785 PC 110 (Naval Sea Systems Command), 167-8278268 ITEM 19 (Naval Sea Systems Command), 803-6397269 ITEM 84 (Naval Sea Systems Command), 167-8278275 ITEM 19 (Naval Sea Systems Command).
6 possible matches (shared part number, not a government interchangeability claim): 5340-01-641-4976, 5325-01-641-7422, 3040-01-641-7425. Verify interchangeability with system specifications before substitution.
Key specifications for 167-7563785 PC 110: Fastener Stud Shank Length: 0.4375 INCHES NOMINAL IN; Length From Body Shoulder to Hole Center: 0.8906 INCHES NOMINAL IN; Fastener Stud Shank Diameter: 0.501 INCHES MINIMUM AND 0.502 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.