The Screw,machine, cataloged under National Stock Number 5305-00-452-5263, 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 13 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 | 5305-00-452-5263 |
| Primary Part Number | A33Z6 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Bsi Standards Limited |
| Status | ACTIVE |
| Screw Surface Treatment | CADMIUM |
| Fastener Length | 0.188 INCHES MINIMUM AND 0.208 INCHES MAXIMUM IN |
| Thread Pitch in Millimeters | 0.43 |
| Thread Length | 0.145 INCHES MINIMUM AND 0.165 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 2.2 MILLIMETERS MM |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Screw Material | STEEL |
| Internal Drive Style | SLOT |
| Countersink Angle | 88.0 DEGREES MINIMUM AND 92.0 DEGREES MAXIMUM |
| Thread Series Designator | BA |
| Head Diameter | 0.147 INCHES MINIMUM AND 0.157 INCHES MAXIMUM IN |
| Screw Surface Treatment Document and Classification | DTD904,FSCM K7766 NATIONAL SPEC SINGLE TREATMENT RESPONSE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 5305-00-452-5263 is a Screw,machine, manufactured by Bsi Standards Limited, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-452-5263 has 2 manufacturer part numbers on file: A33Z6 (Bsi Standards Limited), A33Z6 (Ratier-Figeac).
Key specifications for A33Z6: Screw Surface Treatment: CADMIUM; Fastener Length: 0.188 INCHES MINIMUM AND 0.208 INCHES MAXIMUM IN; Thread Pitch in Millimeters: 0.43; Thread Length: 0.145 INCHES MINIMUM AND 0.165 INCHES MAXIMUM IN. 13 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.