The Pin,shoulder,headless, cataloged under National Stock Number 5315-01-440-1408, is classified within Federal Supply Class 5315 (Nails, Machine Keys, and Pins) of the Hardware and Abrasives group. The manufacturer of record is Howmet Global Fastening Systems Inc. Div Tridair Products. Government technical data includes 21 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 | 5315-01-440-1408 |
| Primary Part Number | CA4402-4 |
| Item Name | Pin,shoulder,headless |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Manufacturer | Howmet Global Fastening Systems Inc. Div Tridair Products |
| Status | ACTIVE |
| Shank Diameter | 0.182 INCHES MINIMUM AND 0.187 INCHES MAXIMUM IN |
| Second Shank Diameter | 0.250 INCHES NOMINAL IN |
| First End Location | OVAL END |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.579 INCHES MINIMUM AND 0.629 INCHES MAXIMUM IN |
| First End Style | OVAL |
| Shank Length | 0.640 INCHES NOMINAL IN |
| Style Designator | SHOULDER |
| Material Document and Classification | AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Second End Relationship with First End | NOT IDENTICAL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.250 INCHES IN |
| Shoulder Diameter | 0.687 INCHES NOMINAL IN |
| Second Shank Length | 0.865 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE OVERALL |
| Second End Style | SQUARE |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | STEEL COMP 630 OVERALL |
| Thread Series Designator | UNF |
| First End Outer Radius | 0.031 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 |
| Part Number | Manufacturer |
|---|---|
| CA4402-4 PRIMARY | Howmet Global Fastening Systems Inc. Div Tridair Products (USA) |
NSN 5315-01-440-1408 is a Pin,shoulder,headless, manufactured by Howmet Global Fastening Systems Inc. Div Tridair Products, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
NSN 5315-01-440-1408 has 1 manufacturer part number on file: CA4402-4 (Howmet Global Fastening Systems Inc. Div Tridair Products).
Key specifications for CA4402-4: Shank Diameter: 0.182 INCHES MINIMUM AND 0.187 INCHES MAXIMUM IN; Second Shank Diameter: 0.250 INCHES NOMINAL IN; First End Location: OVAL END; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 21 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.