The Screw,cap,socket Head, cataloged under National Stock Number 5305-00-404-0572, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Sps Technologies, Llc Dba PB Fasteners. Government technical data includes 14 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-00-404-0572 |
| Primary Part Number | C318466-4 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Sps Technologies, Llc Dba PB Fasteners |
| Status | ACTIVE |
| Width Across Flats | 0.625 INCHES NOMINAL IN |
| Head Height | 0.75 INCHES NOMINAL IN |
| Thread Length | 1.125 INCHES NOMINAL IN |
| Hardness Rating | 37.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL |
| Nominal Thread Diameter | 0.75 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Locking Feature | PELLET THREADS |
| Internal Drive Style | HEXAGON |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 10 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 1.125 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 |
|---|---|
| C318466-4 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| C318466-4 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-00-404-0572 is a Screw,cap,socket Head, manufactured by Sps Technologies, Llc Dba PB Fasteners, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-404-0572 has 1 manufacturer part number on file: C318466-4 (Sps Technologies, Llc Dba PB Fasteners).
Key specifications for C318466-4: Width Across Flats: 0.625 INCHES NOMINAL IN; Head Height: 0.75 INCHES NOMINAL IN; Thread Length: 1.125 INCHES NOMINAL IN; Hardness Rating: 37.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL. 14 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.