The Screw,shoulder, cataloged under National Stock Number 5305-01-461-0593, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Us Army Aviation and Missile Command. Government technical data includes 18 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 | 5305-01-461-0593 |
| Primary Part Number | 11457899 |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Us Army Aviation and Missile Command |
| Status | ACTIVE |
| Extended Washer Thickness | 0.014 INCHES MINIMUM AND 0.022 INCHES MAXIMUM IN |
| Head Height | 0.208 INCHES MINIMUM AND 0.228 INCHES MAXIMUM IN |
| Fastener Length | 0.530 INCHES NOMINAL IN |
| Shoulder Length | 0.140 INCHES NOMINAL FIRST SHOULDER IN |
| Extended Washer Diameter | 0.275 INCHES MINIMUM AND 0.295 INCHES MAXIMUM IN |
| Shoulder Diameter | 0.187 INCHES NOMINAL FIRST SHOULDER IN |
| Thread Length | 0.255 INCHES MINIMUM AND 0.275 INCHES MAXIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Nominal Thread Diameter | 0.164 INCHES IN |
| Head Style | HEXAGON EXTENDED WASHER |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.250 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE OVERALL |
| Internal Drive Style | SLOT |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| 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 |
|---|---|
| 11457899 PRIMARY | Us Army Aviation and Missile Command (USA) |
NSN 5305-01-461-0593 is a Screw,shoulder, manufactured by Us Army Aviation and Missile Command, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-461-0593 has 1 manufacturer part number on file: 11457899 (Us Army Aviation and Missile Command).
Key specifications for 11457899: Extended Washer Thickness: 0.014 INCHES MINIMUM AND 0.022 INCHES MAXIMUM IN; Head Height: 0.208 INCHES MINIMUM AND 0.228 INCHES MAXIMUM IN; Fastener Length: 0.530 INCHES NOMINAL IN; Shoulder Length: 0.140 INCHES NOMINAL FIRST SHOULDER IN. 18 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.