The Screw,externally Relieved Body, cataloged under National Stock Number 5305-00-208-8311, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Aeronautical Standards Group Dept of Navy and Air Force. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-208-8311 |
| Primary Part Number | AN255-8 |
| Item Name | Screw,externally Relieved Body |
| FSC / FSG | 5305 / 53 — No Item Name Available |
| Manufacturer | Aeronautical Standards Group Dept of Navy and Air Force |
| Status | ACTIVE |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Head Height | 0.107 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN |
| Fastener Length | 0.750 INCHES MAXIMUM IN |
| Material | STEEL COMP 1018 OR STEEL COMP 1020 OR STEEL COMP 1025 OVERALL |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 0.375 INCHES NOMINAL IN |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.287 INCHES MINIMUM AND 0.309 INCHES MAXIMUM IN |
| Thread Class | 2A A |
| First Diameter From Head | 0.120 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN |
| Material Document and Classification | MIL-S-7097 MIL SPEC ALL MATERIAL RESPONSES OVERALL |
| Head Style | ROUND |
| Surface Treatment | CADMIUM OR ZINC OVERALL |
| Nominal Thread Diameter | 0.164 INCHES IN |
| Thread Quantity Per Inch | 32 |
| Externally Relieved Body Diameter Quantity | 1 |
| Thread Direction | RIGHT-HAND |
| Thread Length | 0.375 INCHES MINIMUM IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| AN255-8 | Aeronautical Standards Group Dept of Navy and Air Force (USA) |
NSN 5305-00-208-8311 is a Screw,externally Relieved Body, manufactured by Aeronautical Standards Group Dept of Navy and Air Force, classified under FSC 5305 (No Item Name Available). Status: active.
NSN 5305-00-208-8311 has 1 cross-referenced part number: AN255-8 (Aeronautical Standards Group Dept of Navy and Air Force).
There are 2 known substitutes for 5305-00-208-8311: 5305-00-141-5284, 5306-00-144-3881. Verify interchangeability with system specifications before substitution.
Key specifications for AN255-8: Internal Drive Style: CROSS RECESS TYPE 1; Head Height: 0.107 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN; Fastener Length: 0.750 INCHES MAXIMUM IN; Material: STEEL COMP 1018 OR STEEL COMP 1020 OR STEEL COMP 1025 OVERALL. 17 total characteristics are documented in the Federal Logistics Information System.