The Pin,shoulder,headless, cataloged under National Stock Number 5315-01-477-6017, is classified within Federal Supply Class 5315 (Nails, Machine Keys, and Pins) of the Hardware and Abrasives group. The manufacturer of record is Hi-Shear Corporation. Government technical data includes 21 specifications, cited from the U.S. Government catalog. The record lists 18 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5315-01-477-6017 |
| Primary Part Number | 3M943C4-6-4 |
| Item Name | Pin,shoulder,headless |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Manufacturer | Hi-Shear Corporation |
| Status | ACTIVE |
| Shank Diameter | 0.249 INCHES NOMINAL IN |
| Second Shank Diameter | 0.249 INCHES NOMINAL IN |
| First End Location | THREADED END |
| Thread Length | 0.405 INCHES NOMINAL IN |
| First End Style | SQUARE |
| Shank Length | 0.780 INCHES NOMINAL IN |
| Criticality Code Justification | AGAV |
| Style Designator | SHOULDER |
| Material Document and Classification | QQ-S-763 COND B FED SPEC 1ST MATERIAL RESPONSE OR QQ-S-763 COND B FED SPEC 2ND MATERIAL RESPONSE OR MMS265 COND B FSCM 76301 MFR REF 3RD MATERIAL RESPONSE OVERALL |
| Second End Taper Length | 0.250 INCHES NOMINAL IN |
| Second End Relationship with First End | NOT IDENTICAL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.250 INCHES IN |
| Second Shank Length | 0.500 INCHES MINIMUM AND 0.520 INCHES MAXIMUM IN |
| Shoulder Width Across Flats | 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN |
| Second End Tip Radius | 0.060 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN |
| Second End Style | CHAMFERED |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | STEEL COMP 302 OR STEEL COMP 304 OR STEEL COMP 303SE OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 3M943C4-6-4 PRIMARY | Hi-Shear Corporation (USA) |
| 3M943C4-6-4 PRIMARY | G.s. Precision, Inc. (USA) |
| 3M943C4-6-4 PRIMARY | Saturn Fasteners Inc (USA) |
| 11415C4-6-4 PRIMARY | Reid Products Inc. Dba Reid Products Inc (USA) |
| VS3258C4-6-4 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| VS3258C4-6-4 PRIMARY | Howmet Global Fastening Systems Inc. Div Voi-Shan Products (USA) |
| 3M943C4-6-4 PRIMARY | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| WC943C4-6-4 | West Coast Aerospace, Inc. (USA) |
| 3M943C4-6-4 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| 3M943C4-6-4 | Houston Precision Fasteners I Lp (USA) |
| 3M943C4-6-4 PRIMARY | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| 3M943C4-6-4 PRIMARY | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| 3M943C4-6-4 PRIMARY | Heartland Precision Fasteners Inc (USA) |
| 3M943C4-6-4 PRIMARY | Sps Technologies Ltd, Tj Brooks Division (GBR) |
| 3M943C4-6-4 PRIMARY | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| D792683C6N4 PRIMARY | Huck International, Inc (USA) |
| 3M943C4-6-4 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| 3M943C4-6-4 | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| AAP139C4-6-4 | 3/2 Design control — primary reference U.S. Government activity |
| 3M943C4-6-4 | 3/2 Design control — primary reference U.S. Government activity |
| VS3258C4-6-4 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5315-01-477-6017 is a Pin,shoulder,headless, manufactured by Hi-Shear Corporation, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
NSN 5315-01-477-6017 has 18 manufacturer part numbers on file: 3M943C4-6-4 (Hi-Shear Corporation), 3M943C4-6-4 (G.s. Precision, Inc.), 3M943C4-6-4 (Saturn Fasteners Inc), 11415C4-6-4 (Reid Products Inc. Dba Reid Products Inc), VS3258C4-6-4 (Howmet Global Fastening Systems Inc) and 13 more.
Key specifications for 3M943C4-6-4: Shank Diameter: 0.249 INCHES NOMINAL IN; Second Shank Diameter: 0.249 INCHES NOMINAL IN; First End Location: THREADED END; Thread Length: 0.405 INCHES NOMINAL IN. 21 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.