The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-603-6445, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Fastenal Company Div Flpan. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-603-6445 |
| Primary Part Number | BHCS4-40X1.0SS |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Fastenal Company Div Flpan |
| Status | ACTIVE |
| Width Across Flats | 0.063 INCHES NOMINAL IN |
| Fastener Length | 1.000 INCHES NOMINAL IN |
| Thread Length | 1.000 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.112 INCHES IN |
| Thread Direction | RIGHT-HAND |
| Internal Drive Style | HEXAGON |
| Thread Quantity Per Inch | 40 |
| Material | STEEL PROPERTY CLASS 18.8 OVERALL |
| 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 |
|---|---|
| BHCS4-40X1.0SS PRIMARY | Fastenal Company Div Flpan (USA) |
| 73707 | Fastenal Company Div Flpan (USA) |
NSN 5305-01-603-6445 is a Screw,cap,socket Head, manufactured by Fastenal Company Div Flpan, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-603-6445 has 2 manufacturer part numbers on file: BHCS4-40X1.0SS (Fastenal Company Div Flpan), 73707 (Fastenal Company Div Flpan).
Key specifications for BHCS4-40X1.0SS: Width Across Flats: 0.063 INCHES NOMINAL IN; Fastener Length: 1.000 INCHES NOMINAL IN; Thread Length: 1.000 INCHES NOMINAL IN; Nominal Thread Diameter: 0.112 INCHES IN. 8 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.