The Setscrew, cataloged under National Stock Number 5305-01-438-2742, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Circor Naval Solutions Llc Dba Warren Pumps. Government technical data includes 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-01-438-2742 |
| Primary Part Number | R-316 PC 1.4.4 |
| Item Name | Setscrew |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Circor Naval Solutions Llc Dba Warren Pumps |
| Status | ACTIVE |
| Fastener Length | 1.250 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Head Style | BUTTON |
| Thread Direction | RIGHT-HAND |
| Internal Drive Style | SQUARE |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 13 |
| Material | COPPER ALLOY 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 |
|---|---|
| R-316 PC 1.4.4 PRIMARY | Circor Naval Solutions Llc Dba Warren Pumps (USA) |
| Reference | Meaning |
|---|---|
| 517-2299514 PC1.4.4 | 5/2 Secondary reference U.S. Government activity |
NSN 5305-01-438-2742 is a Setscrew, manufactured by Circor Naval Solutions Llc Dba Warren Pumps, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-438-2742 has 1 manufacturer part number on file: R-316 PC 1.4.4 (Circor Naval Solutions Llc Dba Warren Pumps).
Key specifications for R-316 PC 1.4.4: Fastener Length: 1.250 INCHES NOMINAL IN; Nominal Thread Diameter: 0.500 INCHES IN; Head Style: BUTTON; Thread Direction: RIGHT-HAND. 9 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.