The Screw,externally Relieved Body, cataloged under National Stock Number 5305-00-043-1281, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-043-1281 |
| Primary Part Number | 54A50A8 |
| Item Name | Screw,externally Relieved Body |
| FSC / FSG | 5305 / 53 — No Item Name Available |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Head Height | 0.120 INCHES NOMINAL IN |
| Thread Class | 2A A |
| Thread Length | 0.287 INCHES MINIMUM IN |
| Head Style | ROUND |
| Thread Quantity Per Inch | 32 |
| Nominal Thread Diameter | 0.164 INCHES IN |
| Fastener Length | 0.437 INCHES NOMINAL IN |
| Internal Drive Style | SLOT |
| First Diameter From Head | 0.116 INCHES NOMINAL IN |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 0.150 INCHES NOMINAL IN |
| Head Diameter | 0.287 INCHES MINIMUM AND 0.309 INCHES MAXIMUM IN |
| Externally Relieved Body Diameter Quantity | 1 |
| Thread Direction | RIGHT-HAND |
| Material | STEEL CORROSION RESISTING OVERALL |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 5305-00-043-1281 is a Screw,externally Relieved Body, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5305 (No Item Name Available). Status: active.
NSN 5305-00-043-1281 has 2 cross-referenced part numbers: 19791 (L3harris Technologies, Inc. Div Space and Airborne Systems), 54A50A8 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
There are 4 known substitutes for 5305-00-043-1281: 5315-00-281-7578, 5950-00-901-4636, 5331-00-958-9731 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for 54A50A8: Head Height: 0.120 INCHES NOMINAL IN; Thread Class: 2A A; Thread Length: 0.287 INCHES MINIMUM IN; Head Style: ROUND. 17 total characteristics are documented in the Federal Logistics Information System.