The Pin,shoulder,headless, cataloged under National Stock Number 5315-01-421-6161, is classified within Federal Supply Class 5315 (Nails, Machine Keys, and Pins) of the Hardware and Abrasives group. Government technical data includes 17 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5315-01-421-6161 |
| Item Name | Pin,shoulder,headless |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Status | ACTIVE |
| Shank Diameter | 0.186 INCHES MINIMUM AND 0.189 INCHES MAXIMUM IN |
| Second Shank Diameter | 0.186 INCHES MINIMUM AND 0.189 INCHES MAXIMUM IN |
| First End Taper Length | 0.031 INCHES NOMINAL IN |
| First End Location | THREADED END |
| Thread Length | 0.375 INCHES NOMINAL IN |
| First End Style | CHAMFERED |
| Shank Length | 0.440 INCHES NOMINAL IN |
| Style Designator | SHOULDER |
| First End Taper Angle | 45.0 DEGREES NOMINAL |
| Second End Relationship with First End | IDENTICAL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.190 INCHES IN |
| Shoulder Diameter | 0.210 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN |
| Second Shank Length | 0.750 INCHES NOMINAL IN |
| Thread Class | 3A A |
| Material | STEEL COMP 4130 OVERALL |
| Thread Series Designator | UNF |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| S4914740-12-016 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5315-01-421-6161 is a Pin,shoulder,headless, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
Key specifications for 5315-01-421-6161: Shank Diameter: 0.186 INCHES MINIMUM AND 0.189 INCHES MAXIMUM IN; Second Shank Diameter: 0.186 INCHES MINIMUM AND 0.189 INCHES MAXIMUM IN; First End Taper Length: 0.031 INCHES NOMINAL IN; First End Location: THREADED END. 17 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.