The Stud,turnlock Fastener, cataloged under National Stock Number 5325-01-417-5121, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Grimes Aerospace Company. Government technical data includes 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-417-5121 |
| Primary Part Number | FA-2002 |
| Item Name | Stud,turnlock Fastener |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Grimes Aerospace Company |
| Status | ACTIVE |
| Drive Type | CROSS RECESS |
| Material Accommodated Thickness | 0.090 INCHES MINIMUM AND 0.109 INCHES MAXIMUM IN |
| Turnlock Stud Shank Style | STUD SHANK |
| Diameter | 0.250 INCHES NOMINAL IN |
| Shank Neck Length | 0.193 INCHES NOMINAL IN |
| Turnlock Stud Head Style | FILLISTER |
| Stud Shank Major Diameter | 0.160 INCHES NOMINAL IN |
| Surface Treatment | ZINC OVERALL |
| Material | STEEL OVERALL |
| Grip Length | 0.285 INCHES NOMINAL IN |
| 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 |
|---|---|
| FA-2002 PRIMARY | Grimes Aerospace Company (USA) |
| Reference | Meaning |
|---|---|
| 81-18-100-16 | 5/2 Secondary reference U.S. Government activity |
NSN 5325-01-417-5121 is a Stud,turnlock Fastener, manufactured by Grimes Aerospace Company, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-417-5121 has 1 manufacturer part number on file: FA-2002 (Grimes Aerospace Company).
1 possible match (shared part number, not a government interchangeability claim): 6515-01-699-1290. Verify interchangeability with system specifications before substitution.
Key specifications for FA-2002: Drive Type: CROSS RECESS; Material Accommodated Thickness: 0.090 INCHES MINIMUM AND 0.109 INCHES MAXIMUM IN; Turnlock Stud Shank Style: STUD SHANK; Diameter: 0.250 INCHES NOMINAL IN. 10 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.