The Screw,machine, cataloged under National Stock Number 5305-01-608-0112, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Federal Commercial Item Description Promulgated by General Services Administration Washington DC. Government technical data includes 14 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 | 5305-01-608-0112 |
| Primary Part Number | A-A-55623-267 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Federal Commercial Item Description Promulgated by General Services Administration Washington DC |
| Status | ACTIVE |
| Head Height | 0.105 INCHES MINIMUM AND 0.115 INCHES MAXIMUM IN |
| Fastener Length | 0.620 INCHES MINIMUM AND 0.630 INCHES MAXIMUM IN |
| Screw Material Document and Classification | ASTM D4066 GROUP 01, CLASS 1, GRADE 1 PLASTIC, NYLON ASSN STD SINGLE MATERIAL RESPONSE |
| Thread Length | 0.510 INCHES MINIMUM AND 0.520 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Screw Material | PLASTIC |
| Internal Drive Style | SLOT |
| Countersink Angle | 100.0 DEGREES NOMINAL |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 20 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.502 INCHES MINIMUM AND 0.512 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-A-55623-267 | Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA) |
NSN 5305-01-608-0112 is a Screw,machine, manufactured by Federal Commercial Item Description Promulgated by General Services Administration Washington DC, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-608-0112 has 1 manufacturer part number on file: A-A-55623-267 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC).
Key specifications for A-A-55623-267: Head Height: 0.105 INCHES MINIMUM AND 0.115 INCHES MAXIMUM IN; Fastener Length: 0.620 INCHES MINIMUM AND 0.630 INCHES MAXIMUM IN; Screw Material Document and Classification: ASTM D4066 GROUP 01, CLASS 1, GRADE 1 PLASTIC, NYLON ASSN STD SINGLE MATERIAL RESPONSE; Thread Length: 0.510 INCHES MINIMUM AND 0.520 INCHES MAXIMUM IN. 14 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.