The Screw,machine, cataloged under National Stock Number 5305-00-404-6623, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is B&b Electro-Mechanical Component Distributors, Inc. Div B & B Electro-Mechanical Components. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-404-6623 |
| Primary Part Number | ST810533-14 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | B&b Electro-Mechanical Component Distributors, Inc. Div B & B Electro-Mechanical Components |
| Status | ACTIVE |
| Head Height | 0.069 INCHES MINIMUM AND 0.079 INCHES MAXIMUM IN |
| Screw Surface Treatment | PASSIVATE |
| Fastener Length | 0.282 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN |
| Screw Material Document and Classification | QQ-S-763 FED SPEC 1ST MATERIAL RESPONSE OR QQ-S-764 FED SPEC 2ND MATERIAL RESPONSE |
| Thread Length | 0.232 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.112 INCHES IN |
| Head Style | FILLISTER |
| Thread Direction | RIGHT-HAND |
| Screw Material | STEEL COMP 302 OR STEEL COMP 303 |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 40 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.183 INCHES MAXIMUM IN |
| Screw Surface Treatment Document and Classification | QQ-P-35 FED 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 |
| Part Number | Manufacturer |
|---|---|
| ST810533-14 PRIMARY | B&b Electro-Mechanical Component Distributors, Inc. Div B & B Electro-Mechanical Components (USA) |
| Reference | Meaning |
|---|---|
| ST810533-14 | 5/9 Secondary reference U.S. Government activity |
NSN 5305-00-404-6623 is a Screw,machine, manufactured by B&b Electro-Mechanical Component Distributors, Inc. Div B & B Electro-Mechanical Components, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-404-6623 has 1 manufacturer part number on file: ST810533-14 (B&b Electro-Mechanical Component Distributors, Inc. Div B & B Electro-Mechanical Components).
Key specifications for ST810533-14: Head Height: 0.069 INCHES MINIMUM AND 0.079 INCHES MAXIMUM IN; Screw Surface Treatment: PASSIVATE; Fastener Length: 0.282 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN; Screw Material Document and Classification: QQ-S-763 FED SPEC 1ST MATERIAL RESPONSE OR QQ-S-764 FED SPEC 2ND MATERIAL RESPONSE. 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.