The Pin,shoulder,headless, cataloged under National Stock Number 5315-01-174-0668, is classified within Federal Supply Class 5315 (Nails, Machine Keys, and Pins) of the Hardware and Abrasives group. The manufacturer of record is Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company. Government technical data includes 23 specifications, cited from the U.S. Government catalog. The record lists 8 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5315-01-174-0668 |
| Primary Part Number | 3M943T3-2-5 |
| Item Name | Pin,shoulder,headless |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Manufacturer | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company |
| Status | ACTIVE |
| Shank Diameter | 0.1851 INCHES MINIMUM AND 0.1863 INCHES MAXIMUM IN |
| Second Shank Diameter | 0.1890 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN |
| Surface Finish | 125.0 MICROINCHES OVERALL |
| First End Location | THREADED END |
| Hole Arrangement Style | ONE END DRILLED |
| Thread Length | 0.190 INCHES NOMINAL IN |
| First End Style | SQUARE |
| First Hole Diameter | 0.076 INCHES MINIMUM AND 0.086 INCHES MAXIMUM IN |
| Shank Length | 0.502 INCHES NOMINAL IN |
| Style Designator | SHOULDER |
| Material Document and Classification | MIL-T-9047,TYPE 3,COND A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Second End Taper Length | 0.190 INCHES MINIMUM AND 0.210 INCHES MAXIMUM IN |
| Second End Relationship with First End | NOT IDENTICAL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.190 INCHES IN |
| Second Shank Length | 0.470 INCHES NOMINAL IN |
| Shoulder Width Across Flats | 0.375 INCHES NOMINAL IN |
| Second End Tip Radius | 0.060 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN |
| Second End Style | CHAMFERED |
| Thread Class | 3A A |
| Material | TITANIUM ALLOY UNS R56400 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Distance From Centerline of Hole to End of Pin | 0.140 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 |
|---|---|
| 3M943T3-2-5 | West Coast Aerospace, Inc. (USA) |
| 3M943T3-2-5 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| 11415T3-2-5 | Reid Products Inc. Dba Reid Products Inc (USA) |
| 3M943T3-2-5 PRIMARY | The Boeing Company Div Defense (USA) |
| 3M943T3-2-5 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| 3M943T3-2-5 PRIMARY | Hi-Shear Corporation (USA) |
| 3M943T3-2-5 PRIMARY | G.s. Precision, Inc. (USA) |
| 3M943T3-2-5 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| AAP139T3-2-5 | 3/2 Design control — primary reference U.S. Government activity |
| D792682T2N5 | C/1 Advisory reference — outside the item-of-supply concept Huck International, Inc |
| VS3258T3-2-5 | 3/2 Design control — primary reference U.S. Government activity |
| D792682T2N5 | 5/9 Secondary reference U.S. Government activity |
NSN 5315-01-174-0668 is a Pin,shoulder,headless, manufactured by Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
NSN 5315-01-174-0668 has 8 manufacturer part numbers on file: 3M943T3-2-5 (West Coast Aerospace, Inc.), 3M943T3-2-5 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), 11415T3-2-5 (Reid Products Inc. Dba Reid Products Inc), 3M943T3-2-5 (The Boeing Company Div Defense), 3M943T3-2-5 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc) and 3 more.
Key specifications for 3M943T3-2-5: Shank Diameter: 0.1851 INCHES MINIMUM AND 0.1863 INCHES MAXIMUM IN; Second Shank Diameter: 0.1890 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN; Surface Finish: 125.0 MICROINCHES OVERALL; First End Location: THREADED END. 23 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.