The Pin,straight,threaded, cataloged under National Stock Number 5315-01-144-2404, is classified within Federal Supply Class 5315 (Nails, Machine Keys, and Pins) of the Hardware and Abrasives group. Government technical data includes 15 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5315-01-144-2404 |
| Item Name | Pin,straight,threaded |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Status | ACTIVE |
| First End Taper Length | 0.062 INCHES NOMINAL IN |
| First End Location | BOTH ENDS |
| Thread Length | 0.438 INCHES NOMINAL IN |
| First End Style | CHAMFERED |
| Material Document and Classification | AISI 4140 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| First End Taper Angle | 45.0 DEGREES NOMINAL |
| Pin Overall Diameter | 0.3125 INCHES NOMINAL IN |
| Pin Overall Length | 1.375 INCHES NOMINAL IN |
| Second End Relationship with First End | IDENTICAL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.312 INCHES IN |
| Pin Grip Length | 0.938 INCHES NOMINAL IN |
| Thread Class | 2A A |
| Material | STEEL COMP 4140 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 |
| Reference | Meaning |
|---|---|
| 810-4384431-A-29 | 5/9 Secondary reference U.S. Government activity |
| 810-4384431 | 3/1 Design control — primary reference U.S. Government activity |
| 810-4384431-29 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5315-01-144-2404 is a Pin,straight,threaded, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
4 possible matches (shared part number, not a government interchangeability claim): 4820-01-145-5650, 3020-01-163-0773, 5365-01-184-6094. Verify interchangeability with system specifications before substitution.
Key specifications for 5315-01-144-2404: First End Taper Length: 0.062 INCHES NOMINAL IN; First End Location: BOTH ENDS; Thread Length: 0.438 INCHES NOMINAL IN; First End Style: CHAMFERED. 15 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.