The Screw,machine, cataloged under National Stock Number 5305-00-680-5491, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Air Corps Standards Under Custodianiship of the Air Force. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 10 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5305-00-680-5491 |
| Primary Part Number | AC500A8-8 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — No Item Name Available |
| Manufacturer | Air Corps Standards Under Custodianiship of the Air Force |
| Status | CANCELLED |
| Thread Quantity Per Inch | 32 |
| Head Diameter | 0.250 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN |
| Screw Surface Treatment | CADMIUM |
| Nominal Thread Diameter | 0.164 INCHES IN |
| Internal Drive Style | SLOT |
| Thread Length | 0.500 INCHES NOMINAL IN |
| Nondefinitive Spec/std Data | 1 TYPE AND 5S STYLE |
| Head Height | 0.106 INCHES MINIMUM AND 0.113 INCHES MAXIMUM IN |
| Screw Material | STEEL |
| Thread Class | 2A A |
| Head Style | FILLISTER |
| Thread Direction | RIGHT-HAND |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Fastener Length | 0.500 INCHES NOMINAL IN |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| AC500A8-8 | Air Corps Standards Under Custodianiship of the Air Force |
| Y77730887 | Goodrich Limited Div Goodrich Ltd (GBR) |
| R400-32A | Winco, Inc. (USA) |
| R400-32A | Pierce Co Inc the Sub of Avis Industrial Corp (USA) |
| FFS92 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
| AN500A8-8 | Aeronautical Standards Group Dept of Navy and Air Force (USA) |
| 08060 | Prestolite Electric Inc (USA) |
| TF7079-3 | Turbine Airfoil Designs, Inc. (USA) |
| 471278 | Stewart-Warner Corporation (USA) |
| A40A76 | Surface Combustion Inc (USA) |
NSN 5305-00-680-5491 is a Screw,machine, manufactured by Air Corps Standards Under Custodianiship of the Air Force, classified under FSC 5305 (No Item Name Available). Status: cancelled.
NSN 5305-00-680-5491 has 10 cross-referenced part numbers: AC500A8-8 (Air Corps Standards Under Custodianiship of the Air Force), Y77730887 (Goodrich Limited Div Goodrich Ltd), R400-32A (Winco, Inc.), R400-32A (Pierce Co Inc the Sub of Avis Industrial Corp), FFS92 (Federal Specifications Promulgated by General Services Administration Washington DC) and 5 more.
There are 3 known substitutes for 5305-00-680-5491: 5935-00-274-7295, 5136-00-580-7152, 4730-01-561-4596. Verify interchangeability with system specifications before substitution.
Key specifications for AC500A8-8: Thread Quantity Per Inch: 32; Head Diameter: 0.250 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN; Screw Surface Treatment: CADMIUM; Nominal Thread Diameter: 0.164 INCHES IN. 14 total characteristics are documented in the Federal Logistics Information System.
NSN 5305-00-680-5491 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.