The Pin,shoulder,headless, cataloged under National Stock Number 5315-01-627-0273, 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 PB Fasteners. Government technical data includes 24 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5315-01-627-0273 |
| Primary Part Number | 3M943C4B5-14 |
| Item Name | Pin,shoulder,headless |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Manufacturer | Sps Technologies, Llc Dba PB Fasteners |
| Status | ACTIVE |
| Shank Diameter | 0.1890 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN |
| Second Shank Diameter | 0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN |
| First End Taper Length | 0.030 INCHES NOMINAL IN |
| First End Location | THREADED END |
| Surface Treatment Document and Classification | QQ-P-35 FED STD SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.405 INCHES NOMINAL IN |
| First End Style | CHAMFERED |
| Shank Length | 0.717 INCHES NOMINAL IN |
| Style Designator | SHOULDER |
| Material Document and Classification | QQ-S-763 FED STD SINGLE MATERIAL RESPONSE OR MMS 265 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Second End Taper Length | 0.120 INCHES NOMINAL IN |
| First End Taper Angle | 45.0 DEGREES NOMINAL |
| Second End Relationship with First End | NOT IDENTICAL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.2500 INCHES IN |
| Second Shank Length | 0.995 INCHES NOMINAL IN |
| Shoulder Width Across Flats | 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| 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 303SE OR STEEL COMP 304 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 |
|---|---|
| 3M943C4B5-14 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| 3M943C4B5-14 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| 3M943C4B5-14 PRIMARY | Hi-Shear Corporation (USA) |
| Reference | Meaning |
|---|---|
| 3M943C4B5-14 | 3/2 Design control — primary reference U.S. Government activity |
| 3M943C4B5-14 | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
NSN 5315-01-627-0273 is a Pin,shoulder,headless, manufactured by Sps Technologies, Llc Dba PB Fasteners, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
NSN 5315-01-627-0273 has 3 manufacturer part numbers on file: 3M943C4B5-14 (Sps Technologies, Llc Dba PB Fasteners), 3M943C4B5-14 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), 3M943C4B5-14 (Hi-Shear Corporation).
Key specifications for 3M943C4B5-14: Shank Diameter: 0.1890 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN; Second Shank Diameter: 0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN; First End Taper Length: 0.030 INCHES NOMINAL IN; First End Location: THREADED END. 24 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.