The Pin,shoulder,headless, cataloged under National Stock Number 5315-01-435-6453, 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 20 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5315-01-435-6453 |
| Primary Part Number | ST3M712C4-4-6 |
| Item Name | Pin,shoulder,headless |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Shank Diameter | 0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN |
| Second Shank Diameter | 0.250 INCHES NOMINAL IN |
| First End Location | THREADED END |
| Thread Length | 0.405 INCHES NOMINAL IN |
| First End Style | SQUARE |
| Shank Length | 0.625 INCHES NOMINAL IN |
| 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 MCAIR M-265 CAGEC 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 | 0.655 INCHES NOMINAL IN |
| Shoulder Width Across Flats | 0.438 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE OVERALL |
| Second End Tip Radius | 0.060 INCHES NOMINAL IN |
| Second End Style | CHAMFERED |
| Thread Class | 3A A |
| 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 | X |
| Part Number | Manufacturer |
|---|---|
| ST3M712C4-4-6 | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| AAP123C4-4-6 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5315-01-435-6453 is a Pin,shoulder,headless, manufactured by The Boeing Company Div Defense, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
NSN 5315-01-435-6453 has 1 manufacturer part number on file: ST3M712C4-4-6 (The Boeing Company Div Defense).
Key specifications for ST3M712C4-4-6: Shank Diameter: 0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN; Second Shank Diameter: 0.250 INCHES NOMINAL IN; First End Location: THREADED END; Thread Length: 0.405 INCHES NOMINAL IN. 20 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.