The Screw,machine, cataloged under National Stock Number 5305-01-657-1483, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is W.w. Grainger, Inc. Div Government Sales Division. Government technical data includes 12 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 | 5305-01-657-1483 |
| Primary Part Number | 2AY56 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | W.w. Grainger, Inc. Div Government Sales Division |
| Status | ACTIVE |
| Head Height | 0.075 INCHES MINIMUM AND 0.086 INCHES MAXIMUM IN |
| Fastener Length | 0.500 INCHES NOMINAL IN |
| Thread Length | 0.425 INCHES MINIMUM IN |
| Nominal Thread Diameter | 0.112 INCHES IN |
| Head Style | ROUND |
| Thread Direction | RIGHT-HAND |
| Screw Material | STEEL COMP 302 AND STEEL COMP 304 |
| Internal Drive Style | SLOT |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 40 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.193 INCHES MINIMUM AND 0.211 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 |
|---|---|
| 2AY56 PRIMARY | W.w. Grainger, Inc. Div Government Sales Division (USA) |
NSN 5305-01-657-1483 is a Screw,machine, manufactured by W.w. Grainger, Inc. Div Government Sales Division, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-657-1483 has 1 manufacturer part number on file: 2AY56 (W.w. Grainger, Inc. Div Government Sales Division).
Key specifications for 2AY56: Head Height: 0.075 INCHES MINIMUM AND 0.086 INCHES MAXIMUM IN; Fastener Length: 0.500 INCHES NOMINAL IN; Thread Length: 0.425 INCHES MINIMUM IN; Nominal Thread Diameter: 0.112 INCHES IN. 12 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.