The Pin,shoulder,headless, cataloged under National Stock Number 5315-01-156-5233, is classified within Federal Supply Class 5315 (Nails, Machine Keys, and Pins) of the Hardware and Abrasives group. Government technical data includes 23 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5315-01-156-5233 |
| Item Name | Pin,shoulder,headless |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES LONG SHANK |
| Surface Finish | 63.0 MICROINCHES LARGE SHANK |
| First End Taper Length | 0.062 INCHES NOMINAL IN |
| First Step Diameter | 1.125 INCHES NOMINAL IN |
| First End Location | THREADED END |
| Third Step Diameter | 0.500 INCHES NOMINAL IN |
| Thread Length | 0.750 INCHES NOMINAL IN |
| First End Style | CHAMFERED |
| Second Step Length | 1.312 INCHES NOMINAL IN |
| Style Designator | SHOULDER |
| Material Document and Classification | MIL-S-21952 HY-80 TY A MIL SPEC 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 | 0.500 INCHES IN |
| Second Step Diameter | 0.746 INCHES MINIMUM AND 0.748 INCHES MAXIMUM IN |
| Shoulder Diameter | 0.747 INCHES NOMINAL IN |
| First Step Length | 0.438 INCHES NOMINAL IN |
| Second End Style | SQUARE |
| Thread Class | 2A A |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Third Step Length | 0.875 INCHES NOMINAL IN |
| 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 |
|---|---|
| 77643-42X9 PIECE 16 | 3/2 Design control — primary reference U.S. Government activity |
| SSN637-501-2159964 PIECE 16 | 5/2 Secondary reference U.S. Government activity |
NSN 5315-01-156-5233 is a Pin,shoulder,headless, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
Key specifications for 5315-01-156-5233: Surface Finish: 32.0 MICROINCHES LONG SHANK; Surface Finish: 63.0 MICROINCHES LARGE SHANK; First End Taper Length: 0.062 INCHES NOMINAL IN; First Step Diameter: 1.125 INCHES NOMINAL IN. 23 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.