The Pin,shoulder,headless, cataloged under National Stock Number 5315-01-373-0522, is classified within Federal Supply Class 5315 (Nails, Machine Keys, and Pins) of the Hardware and Abrasives group. The manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 16 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 | 5315-01-373-0522 |
| Primary Part Number | P4078916-02 |
| Item Name | Pin,shoulder,headless |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Shank Diameter | 0.278 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN |
| First End Taper Length | 0.010 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN |
| First End Location | CHAMFERED END |
| Thread Length | 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN |
| First End Style | CHAMFERED |
| Shank Length | 0.145 INCHES MINIMUM AND 0.165 INCHES MAXIMUM IN |
| Style Designator | SHOULDER |
| Material Document and Classification | AMS5639 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| First End Taper Angle | 35.0 DEGREES MINIMUM AND 55.0 DEGREES MAXIMUM |
| Second End Relationship with First End | IDENTICAL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.375 INCHES IN |
| Shoulder Diameter | 0.375 INCHES NOMINAL IN |
| Thread Class | 2A A |
| Material | STEEL COMP 304 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 |
|---|---|
| P4078916-02 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
NSN 5315-01-373-0522 is a Pin,shoulder,headless, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
NSN 5315-01-373-0522 has 1 manufacturer part number on file: P4078916-02 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
Key specifications for P4078916-02: Shank Diameter: 0.278 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN; First End Taper Length: 0.010 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN; First End Location: CHAMFERED END; Thread Length: 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN. 16 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.