The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-01-370-3403, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Boughton Engineering Limited. Government technical data includes 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-01-370-3403 |
| Primary Part Number | BW-11918 |
| Item Name | Screw,cap,hexagon Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Boughton Engineering Limited |
| Status | ACTIVE |
| Head Height | 8.0 MILLIMETERS NOMINAL MM |
| Fastener Length | 100.0 MILLIMETERS NOMINAL MM |
| Thread Length | 1.75 MILLIMETERS NOMINAL MM |
| Head Style | HEXAGON |
| Width Between Flats | 19.0 MILLIMETERS NOMINAL MM |
| Material | STEEL 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 |
|---|---|
| BW-11918 | Boughton Engineering Limited (GBR) |
| Reference | Meaning |
|---|---|
| HC1812100 | 3/9 Design control — primary reference Lindstrom, Llc |
NSN 5305-01-370-3403 is a Screw,cap,hexagon Head, manufactured by Boughton Engineering Limited, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-370-3403 has 1 manufacturer part number on file: BW-11918 (Boughton Engineering Limited).
Key specifications for BW-11918: Head Height: 8.0 MILLIMETERS NOMINAL MM; Fastener Length: 100.0 MILLIMETERS NOMINAL MM; Thread Length: 1.75 MILLIMETERS NOMINAL MM; Head Style: HEXAGON. 6 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.