The Pin,shoulder,headless, cataloged under National Stock Number 5315-01-278-2129, is classified within Federal Supply Class 5315 (Nails, Machine Keys, and Pins) of the Hardware and Abrasives group. The manufacturer of record is Lockheed Martin Corporation Div Rotary and Mission Systems. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5315-01-278-2129 |
| Primary Part Number | 5219451-1 |
| Item Name | Pin,shoulder,headless |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Manufacturer | Lockheed Martin Corporation Div Rotary and Mission Systems |
| Status | ACTIVE |
| Shank Diameter | 0.436 INCHES MINIMUM AND 0.437 INCHES MAXIMUM IN |
| Surface Finish | 63.0 MICROINCHES OUTSIDE DIAMETER |
| First End Location | BOTH ENDS |
| Surface Treatment Document and Classification | WS19168 CAGEC 38597 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| First End Style | SQUARE |
| Shank Length | 1.500 INCHES NOMINAL IN |
| Style Designator | SHOULDER |
| Material Document and Classification | AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Second End Relationship with First End | IDENTICAL |
| Shoulder Diameter | 0.5605 INCHES MINIMUM AND 0.5615 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Material | STEEL COMP 630 OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 5315-01-278-2129 is a Pin,shoulder,headless, manufactured by Lockheed Martin Corporation Div Rotary and Mission Systems, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
NSN 5315-01-278-2129 has 2 manufacturer part numbers on file: 5219451-1 (Lockheed Martin Corporation Div Rotary and Mission Systems), 5219451-1 (Naval Sea Systems Command).
Key specifications for 5219451-1: Shank Diameter: 0.436 INCHES MINIMUM AND 0.437 INCHES MAXIMUM IN; Surface Finish: 63.0 MICROINCHES OUTSIDE DIAMETER; First End Location: BOTH ENDS; Surface Treatment Document and Classification: WS19168 CAGEC 38597 MFR REF SINGLE TREATMENT RESPONSE OVERALL. 12 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.