The Pin,shoulder,headless, cataloged under National Stock Number 5315-01-651-9926, is classified within Federal Supply Class 5315 (Nails, Machine Keys, and Pins) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 17 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government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 | 5315-01-651-9926 |
| Primary Part Number | 3M943C4B2-14 |
| Item Name | Pin,shoulder,headless |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| First End Style | CHAMFERED |
| Second End Relationship with First End | NOT IDENTICAL |
| 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 |
|---|---|
| 3M943C4B2-14 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| 3M943C4B2-14 PRIMARY | The Boeing Company Div Defense (USA) |
| 3M943C4B2-14 | Reid Products Inc. Dba Reid Products Inc (USA) |
| 3M943C4B2-14 | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| 3M943C4B2-14 | Howmet Global Fastening Systems Inc (USA) |
| 3M943C4B2-14 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| 3M943C4B2-14 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| 3M943C4B2-14 | Howmet Global Fastening Systems Inc. Div Voi-Shan Products (USA) |
| 3M943C4B2-14 | Sps Technologies Ltd, Tj Brooks Division (GBR) |
| 3M943C4B2-14 | Huck International, Inc (USA) |
| 3M943C4B2-14 PRIMARY | Hi-Shear Corporation (USA) |
| 3M943C4B2-14 | West Coast Aerospace, Inc. (USA) |
| 3M943C4B2-14 | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| 3M943C4B2-14 | Saturn Fasteners Inc (USA) |
| 3M943C4B2-14 | G.s. Precision, Inc. (USA) |
| 3M943C4B2-14 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| 3M943C4B2-14 | Houston Precision Fasteners I Lp (USA) |
| Reference | Meaning |
|---|---|
| 3M943 | D/9 Drawing number reference only The Boeing Company Div Defense |
| 3M943C4B2-14 | 5/2 Secondary reference U.S. Government activity |
| 3M943C4B2-14 | 5/2 Secondary reference U.S. Government activity |
| 3M943C4B2-14 | 5/2 Secondary reference U.S. Government activity |
NSN 5315-01-651-9926 is a Pin,shoulder,headless, manufactured by The Boeing Company Div Defense, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
NSN 5315-01-651-9926 has 17 manufacturer part numbers on file: 3M943C4B2-14 (Valley-Todeco, Inc. Dba Arconic Fastening Systems), 3M943C4B2-14 (The Boeing Company Div Defense), 3M943C4B2-14 (Reid Products Inc. Dba Reid Products Inc), 3M943C4B2-14 (Fastener Innovation Technology, Inc. Dba F I T), 3M943C4B2-14 (Howmet Global Fastening Systems Inc) and 12 more.
5 possible matches (shared part number, not a government interchangeability claim): 5315-01-718-5746, 5315-01-718-6635, 5315-01-718-8406. Verify interchangeability with system specifications before substitution.
Key specifications for 3M943C4B2-14: First End Style: CHAMFERED; Second End Relationship with First End: NOT IDENTICAL; Special Features: MATERIAL IS CRES; Part Name Assigned by Controlling Agency: PIN-INDEX. 2 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.