The Pin,shoulder,headless, cataloged under National Stock Number 5315-00-973-4557, 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 22 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 | 5315-00-973-4557 |
| Primary Part Number | C4WM1118-1 |
| 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 | 0.309 INCHES MINIMUM AND 0.311 INCHES MAXIMUM IN |
| Second Shank Diameter | 0.309 INCHES MINIMUM AND 0.311 INCHES MAXIMUM IN |
| Surface Finish | 125.000 MICROINCHES OVERALL |
| First End Taper Length | 0.010 INCHES MINIMUM AND 0.030 INCHES MAXIMUM IN |
| First End Location | BOTH ENDS |
| Hole Arrangement Style | ONE END DRILLED |
| Thread Length | 0.290 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN |
| First End Style | CHAMFERED |
| First Hole Diameter | 0.066 INCHES MINIMUM AND 0.086 INCHES MAXIMUM IN |
| Shank Length | 0.570 INCHES MINIMUM AND 0.590 INCHES MAXIMUM IN |
| Style Designator | SHOULDER |
| Material Document and Classification | MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| First End Taper Angle | 44.5 DEGREES MINIMUM AND 45.5 DEGREES MAXIMUM |
| Second End Relationship with First End | IDENTICAL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.312 INCHES IN |
| Shoulder Diameter | 0.590 INCHES MINIMUM AND 0.610 INCHES MAXIMUM IN |
| Second Shank Length | 0.790 INCHES MINIMUM AND 0.810 INCHES MAXIMUM IN |
| Thread Class | 3A A |
| Material | STEEL COMP 4130 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Distance From Centerline of Hole to End of Pin | 0.140 INCHES MINIMUM AND 0.160 INCHES MAXIMUM IN |
| 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 |
|---|---|
| C4WM1118-1 PRIMARY | De Havilland Aircraft of Canada Limited (CAN) |
NSN 5315-00-973-4557 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 5315-00-973-4557 has 1 manufacturer part number on file: C4WM1118-1 (De Havilland Aircraft of Canada Limited).
Key specifications for C4WM1118-1: Shank Diameter: 0.309 INCHES MINIMUM AND 0.311 INCHES MAXIMUM IN; Second Shank Diameter: 0.309 INCHES MINIMUM AND 0.311 INCHES MAXIMUM IN; Surface Finish: 125.000 MICROINCHES OVERALL; First End Taper Length: 0.010 INCHES MINIMUM AND 0.030 INCHES MAXIMUM IN. 22 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.