The Pin,shoulder,headless, cataloged under National Stock Number 5315-01-301-0627, is classified within Federal Supply Class 5315 (Nails, Machine Keys, and Pins) of the Hardware and Abrasives group. Government technical data includes 29 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5315-01-301-0627 |
| Item Name | Pin,shoulder,headless |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Status | ACTIVE |
| Surface Finish | 16.0 MICROINCHES LONG SHANK |
| Surface Finish | 63.0 MICROINCHES SHOULDER BEARING SURFACE |
| Surface Finish | 16.0 MICROINCHES SHANK END |
| Surface Finish | 63.0 MICROINCHES SHOULDER OUTSIDE DIAMETER |
| First Step Diameter | 4.000 INCHES NOMINAL IN |
| First End Location | THREADED END |
| Third Step Diameter | 0.9995 INCHES MINIMUM AND 1.0000 INCHES MAXIMUM IN |
| Hole Arrangement Style | ONE END W/TWO DRILLED HOLES |
| Thread Length | 0.969 INCHES NOMINAL IN |
| First End Style | CHAMFERED |
| First Hole Diameter | 0.187 INCHES NOMINAL IN |
| Second Step Length | 4.375 INCHES NOMINAL IN |
| Style Designator | SHOULDER |
| Material Document and Classification | DOD-F-24669/3,CLASS A OR B OR C OR D,CONDITION 1 OR 2 OR 3 OR 4,TYPE 1 OR 2 OR 3 OR 4 OR 5 NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Second End Relationship with First End | NOT IDENTICAL |
| Second Hole Diameter | 0.187 INCHES NOMINAL IN |
| Angle Between Centerline of Holes | 90.0 DEGREES NOMINAL |
| Features Provided | CASEHARDENED |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 1.000 INCHES IN |
| Second Step Diameter | 1.9995 INCHES MINIMUM AND 2.0000 INCHES MAXIMUM IN |
| First Step Length | 2.125 INCHES NOMINAL IN |
| Second End Counterbore Diameter | 3.500 INCHES MINIMUM AND 3.505 INCHES MAXIMUM IN |
| Second End Style | COUNTERBORED W/O THRU HOLE |
| Thread Class | 2A A |
| Material | STEEL OVERALL |
| Thread Series Designator | UNF |
| Second End Counterbore Depth | 0.500 INCHES NOMINAL IN |
| Distance From Centerline of Hole to End of Pin | 0.312 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 |
|---|---|
| 2255876 PIECE 5 | 3/2 Design control — primary reference U.S. Government activity |
| 2255885 PIECE 5 | 5/2 Secondary reference U.S. Government activity |
NSN 5315-01-301-0627 is a Pin,shoulder,headless, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
Key specifications for 5315-01-301-0627: Surface Finish: 16.0 MICROINCHES LONG SHANK; Surface Finish: 63.0 MICROINCHES SHOULDER BEARING SURFACE; Surface Finish: 16.0 MICROINCHES SHANK END; Surface Finish: 63.0 MICROINCHES SHOULDER OUTSIDE DIAMETER. 29 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.