The Pin,shoulder,headless, cataloged under National Stock Number 5315-01-134-0879, 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 24 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5315-01-134-0879 |
| Primary Part Number | 74A313078-2001 |
| Item Name | Pin,shoulder,headless |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Shank Diameter | 0.241 INCHES MINIMUM AND 0.248 INCHES MAXIMUM IN |
| Second Shank Diameter | 0.311 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN |
| First End Taper Length | 0.250 INCHES NOMINAL IN |
| First End Location | UNTHREADED END |
| Surface Treatment Document and Classification | PS13101,TYPE 2,CLASS 2,FSCM 76301 MIL SPEC SINGLE TREATMENT RESPONSE SHANK |
| Second End Taper Angle | 40.0 DEGREES MINIMUM AND 50.0 DEGREES MAXIMUM |
| Thread Length | 0.530 INCHES NOMINAL IN |
| First End Style | CHAMFERED |
| Shank Length | 1.250 INCHES NOMINAL IN |
| Style Designator | SHOULDER |
| Material Document and Classification | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Second End Taper Length | 0.046 INCHES MINIMUM AND 0.076 INCHES MAXIMUM IN |
| First End Taper Angle | 26.0 DEGREES NOMINAL |
| Second End Relationship with First End | NOT IDENTICAL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.3125 INCHES IN |
| Second Shank Length | 0.830 INCHES NOMINAL IN |
| Shoulder Width Across Flats | 0.500 INCHES NOMINAL IN |
| First End Tip Radius | 0.060 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM SHANK |
| Second End Style | CHAMFERED |
| Thread Class | 3A A |
| Material | STEEL COMP XM-13 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 |
|---|---|
| 74A313078-2001 PRIMARY | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| 10123101 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 5315-01-134-0879 is a Pin,shoulder,headless, manufactured by The Boeing Company Div Defense, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
NSN 5315-01-134-0879 has 1 manufacturer part number on file: 74A313078-2001 (The Boeing Company Div Defense).
Key specifications for 74A313078-2001: Shank Diameter: 0.241 INCHES MINIMUM AND 0.248 INCHES MAXIMUM IN; Second Shank Diameter: 0.311 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN; First End Taper Length: 0.250 INCHES NOMINAL IN; First End Location: UNTHREADED 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.