The Pin,shoulder,headless, cataloged under National Stock Number 5315-01-138-8878, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5315-01-138-8878 |
| Primary Part Number | 74A313161-2003 |
| Item Name | Pin,shoulder,headless |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Shank Diameter | 0.4365 INCHES MINIMUM AND 0.4370 INCHES MAXIMUM IN |
| Second Shank Diameter | 0.4375 INCHES NOMINAL IN |
| Surface Finish | 63.0 MICROINCHES HEAD BEARING SURFACE |
| First End Taper Length | 0.053 INCHES MINIMUM AND 0.083 INCHES MAXIMUM IN |
| First End Location | THREADED END |
| Thread Length | 0.623 INCHES NOMINAL IN |
| First End Style | CHAMFERED |
| Shank Length | 1.188 INCHES NOMINAL IN |
| Style Designator | SHOULDER |
| Material Document and Classification | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| First End Taper Angle | 45.0 DEGREES NOMINAL |
| Second End Relationship with First End | NOT IDENTICAL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.4375 INCHES IN |
| Second End Outer Radius | 0.060 INCHES NOMINAL IN |
| Second Shank Length | 1.771 INCHES NOMINAL IN |
| Second End Style | OVAL |
| 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 |
|---|---|
| 74A313161-2003 PRIMARY | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| 10123127 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 5315-01-138-8878 is a Pin,shoulder,headless, manufactured by The Boeing Company Div Defense, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
NSN 5315-01-138-8878 has 1 manufacturer part number on file: 74A313161-2003 (The Boeing Company Div Defense).
Key specifications for 74A313161-2003: Shank Diameter: 0.4365 INCHES MINIMUM AND 0.4370 INCHES MAXIMUM IN; Second Shank Diameter: 0.4375 INCHES NOMINAL IN; Surface Finish: 63.0 MICROINCHES HEAD BEARING SURFACE; First End Taper Length: 0.053 INCHES MINIMUM AND 0.083 INCHES MAXIMUM 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.