The Stud,turnlock Fastener, cataloged under National Stock Number 5325-01-179-4167, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Sps Technologies, Llc Dba PB Fasteners. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-179-4167 |
| Primary Part Number | 1912-4-3 |
| Item Name | Stud,turnlock Fastener |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Sps Technologies, Llc Dba PB Fasteners |
| Status | ACTIVE |
| Drive Type | SLOTTED |
| Turnlock Stud Shank Style | STUD SHANK |
| Material Document and Classification | AMS 6322 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Diameter | 0.325 INCHES NOMINAL IN |
| Stud Head Height | 0.112 INCHES NOMINAL IN |
| Turnlock Stud Head Style | FLAT FILLISTER |
| Stud Shank Major Diameter | 0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN |
| Material | STEEL COMP 8740 BARREL |
| Material | STEEL COMP 8740 OVERALL |
| Grip Length | 0.548 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 |
|---|---|
| 1912-4-3 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| HS4486-5-3 | 5/9 Secondary reference Mcdonnell Douglas Helicopter Co Inc |
| HS4486-5-3 | 7/2 Vendor item drawing reference The Boeing Company |
NSN 5325-01-179-4167 is a Stud,turnlock Fastener, manufactured by Sps Technologies, Llc Dba PB Fasteners, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-179-4167 has 1 manufacturer part number on file: 1912-4-3 (Sps Technologies, Llc Dba PB Fasteners).
Key specifications for 1912-4-3: Drive Type: SLOTTED; Turnlock Stud Shank Style: STUD SHANK; Material Document and Classification: AMS 6322 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Diameter: 0.325 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.