The Screw,machine, cataloged under National Stock Number 5305-01-185-4597, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Bsi Standards Limited. Government technical data includes 11 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-185-4597 |
| Primary Part Number | A.218/A32 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Bsi Standards Limited |
| Status | ACTIVE |
| Head Height | 0.058 INCHES MINIMUM AND 0.068 INCHES MAXIMUM IN |
| Fastener Length | 1.000 INCHES NOMINAL IN |
| Thread Length | 0.950 INCHES MINIMUM AND 1.000 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.112 INCHES IN |
| Head Style | PAN NO. 2 |
| Thread Direction | RIGHT-HAND |
| Screw Material | STEEL CORROSION RESISTING |
| Internal Drive Style | SLOT |
| Thread Quantity Per Inch | 40 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.205 INCHES MINIMUM AND 0.219 INCHES MAXIMUM 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 |
|---|---|
| A.218/A32 PRIMARY | Bsi Standards Limited (GBR) |
| Reference | Meaning |
|---|---|
| A.218/A32 | C/1 Advisory reference — outside the item-of-supply concept Ufc Aerospace Europe Limited |
| A.218/A32 | 5/9 Secondary reference Bas Components Limited |
NSN 5305-01-185-4597 is a Screw,machine, manufactured by Bsi Standards Limited, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-185-4597 has 1 manufacturer part number on file: A.218/A32 (Bsi Standards Limited).
Key specifications for A.218/A32: Head Height: 0.058 INCHES MINIMUM AND 0.068 INCHES MAXIMUM IN; Fastener Length: 1.000 INCHES NOMINAL IN; Thread Length: 0.950 INCHES MINIMUM AND 1.000 INCHES MAXIMUM IN; Nominal Thread Diameter: 0.112 INCHES IN. 11 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.