The Pin,shoulder,headless, cataloged under National Stock Number 5315-00-856-2471, is classified within Federal Supply Class 5315 (Nails, Machine Keys, and Pins) of the Hardware and Abrasives group. The manufacturer of record is De Havilland Aircraft of Canada Limited. Government technical data includes 23 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 | 5315-00-856-2471 |
| Primary Part Number | C4PM1984-1 |
| Item Name | Pin,shoulder,headless |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Manufacturer | De Havilland Aircraft of Canada Limited |
| Status | ACTIVE |
| Shank Diameter | 0.312 INCHES NOMINAL IN |
| Second Shank Diameter | 0.3730 INCHES MINIMUM AND 0.3736 INCHES MAXIMUM IN |
| First End Taper Length | 0.047 INCHES NOMINAL IN |
| First End Location | THREADED END |
| Second End Taper Angle | 15.0 DEGREES NOMINAL |
| Thread Length | 0.380 INCHES NOMINAL IN |
| First End Style | CHAMFERED |
| Shank Length | 0.450 INCHES NOMINAL IN |
| Style Designator | SHOULDER |
| Material Document and Classification | MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Second End Taper Length | 0.300 INCHES NOMINAL IN |
| First End Taper Angle | 45.0 DEGREES NOMINAL |
| Second End Relationship with First End | NOT IDENTICAL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.312 INCHES IN |
| Shoulder Diameter | 1.640 INCHES MINIMUM AND 1.670 INCHES MAXIMUM IN |
| Second Shank Length | 0.900 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM OVERALL |
| Internal Drive Style | SLOT |
| Second End Style | CHAMFERED |
| Thread Class | 2A A |
| Material | STEEL COMP 4130 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 |
|---|---|
| C4PM1984-1 PRIMARY | De Havilland Aircraft of Canada Limited (CAN) |
NSN 5315-00-856-2471 is a Pin,shoulder,headless, manufactured by De Havilland Aircraft of Canada Limited, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
NSN 5315-00-856-2471 has 1 manufacturer part number on file: C4PM1984-1 (De Havilland Aircraft of Canada Limited).
Key specifications for C4PM1984-1: Shank Diameter: 0.312 INCHES NOMINAL IN; Second Shank Diameter: 0.3730 INCHES MINIMUM AND 0.3736 INCHES MAXIMUM IN; First End Taper Length: 0.047 INCHES NOMINAL IN; First End Location: THREADED END. 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.