The Pin,shoulder,headless, cataloged under National Stock Number 5315-01-440-8109, is classified within Federal Supply Class 5315 (Nails, Machine Keys, and Pins) of the Hardware and Abrasives group. The manufacturer of record is Bath Iron Works Corporation. Government technical data includes 18 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5315-01-440-8109 |
| Primary Part Number | 8100-1256-0303 PIECE 58 |
| Item Name | Pin,shoulder,headless |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Manufacturer | Bath Iron Works Corporation |
| Status | ACTIVE |
| Shank Diameter | 0.625 INCHES NOMINAL IN |
| Undercut Width | 0.125 INCHES NOMINAL IN |
| First End Taper Length | 0.188 INCHES NOMINAL IN |
| Undercut Diameter | 0.562 INCHES NOMINAL IN |
| First End Location | CHAMFERED END |
| Thread Length | 0.438 INCHES NOMINAL IN |
| First End Style | CHAMFERED |
| Shank Length | 0.438 INCHES NOMINAL IN |
| Style Designator | UNDERCUT |
| First End Taper Angle | 30.0 DEGREES NOMINAL |
| Second End Relationship with First End | NOT IDENTICAL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.625 INCHES IN |
| Shoulder Diameter | 0.871 INCHES MINIMUM AND 0.872 INCHES MAXIMUM IN |
| Second End Style | SQUARE |
| Thread Class | 2A A |
| Material | STEEL COMP 316 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| 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 |
|---|---|
| 8100-1256-0303 PIECE 58 PRIMARY | Bath Iron Works Corporation (USA) |
NSN 5315-01-440-8109 is a Pin,shoulder,headless, manufactured by Bath Iron Works Corporation, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
NSN 5315-01-440-8109 has 1 manufacturer part number on file: 8100-1256-0303 PIECE 58 (Bath Iron Works Corporation).
Key specifications for 8100-1256-0303 PIECE 58: Shank Diameter: 0.625 INCHES NOMINAL IN; Undercut Width: 0.125 INCHES NOMINAL IN; First End Taper Length: 0.188 INCHES NOMINAL IN; Undercut Diameter: 0.562 INCHES NOMINAL IN. 18 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.