The Screw,machine, cataloged under National Stock Number 5305-00-332-3902, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Martin-Baker Aircraft Company Limited. Government technical data includes 15 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-332-3902 |
| Primary Part Number | MB300-1322 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Martin-Baker Aircraft Company Limited |
| Status | ACTIVE |
| Screw Surface Treatment | CADMIUM |
| Fastener Length | 0.875 INCHES NOMINAL IN |
| Screw Material Document and Classification | A173 U1604 MFR REF SINGLE MATERIAL RESPONSE |
| Thread Length | 0.282 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Screw Material | STEEL |
| Internal Drive Style | TORQUE |
| Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 32 |
| Thread Series Designator | UNF |
| Head Diameter | 0.337 INCHES MINIMUM AND 0.387 INCHES MAXIMUM IN |
| Screw Surface Treatment Document and Classification | DS301-1 U1604 MFR REF 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 |
| Part Number | Manufacturer |
|---|---|
| MB300-1322 PRIMARY | Martin-Baker Aircraft Company Limited (GBR) |
NSN 5305-00-332-3902 is a Screw,machine, manufactured by Martin-Baker Aircraft Company Limited, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-332-3902 has 1 manufacturer part number on file: MB300-1322 (Martin-Baker Aircraft Company Limited).
Key specifications for MB300-1322: Screw Surface Treatment: CADMIUM; Fastener Length: 0.875 INCHES NOMINAL IN; Screw Material Document and Classification: A173 U1604 MFR REF SINGLE MATERIAL RESPONSE; Thread Length: 0.282 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN. 15 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.