The Pin,tapered,threaded, cataloged under National Stock Number 5315-01-439-3250, is classified within Federal Supply Class 5315 (Nails, Machine Keys, and Pins) of the Hardware and Abrasives group. The manufacturer of record is Kato Engineering Inc.. Government technical data includes 15 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5315-01-439-3250 |
| Primary Part Number | 401-75301-40 |
| Item Name | Pin,tapered,threaded |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Manufacturer | Kato Engineering Inc. |
| Status | ACTIVE |
| First End Location | THREADED END |
| Thread Length | 0.625 INCHES NOMINAL IN |
| First End Style | SQUARE |
| Taper Minor Diameter | 0.531 INCHES NOMINAL IN |
| Style Designator | THREADED AT SMALL END |
| Taper Major Diameter | 0.304 INCHES NOMINAL IN |
| Second End Relationship with First End | NOT IDENTICAL |
| Thread Direction | RIGHT-HAND |
| Grip Length | 2.990 INCHES NOMINAL IN |
| Taper Length | 3.000 INCHES NOMINAL IN |
| Second End Style | SQUARE |
| Taper | 0.547 PER FOOT IN INCHES |
| Thread Class | 3A A |
| Material | STEEL OVERALL |
| Thread Series Designator | UNF |
| 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 |
|---|---|
| 401-75301-40 PRIMARY | Kato Engineering Inc. (USA) |
| Reference | Meaning |
|---|---|
| 099-00168-00 ITEM 13 | 5/1 Secondary reference Kato Engineering Inc. |
NSN 5315-01-439-3250 is a Pin,tapered,threaded, manufactured by Kato Engineering Inc., classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
NSN 5315-01-439-3250 has 1 manufacturer part number on file: 401-75301-40 (Kato Engineering Inc.).
Key specifications for 401-75301-40: First End Location: THREADED END; Thread Length: 0.625 INCHES NOMINAL IN; First End Style: SQUARE; Taper Minor Diameter: 0.531 INCHES NOMINAL IN. 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.