The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-432-9645, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Huntington Ingalls Inc Div Newport News Shipbuilding. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-432-9645 |
| Primary Part Number | 255721 PIECE 89 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — No Item Name Available |
| Manufacturer | Huntington Ingalls Inc Div Newport News Shipbuilding |
| Status | ACTIVE |
| Minimum Tensile Strength | 130000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Minimum Yield Strength | 90000 POUNDS PER SQUARE INCH LBS |
| Nondefinitive Spec/std Data | 6 TYPE AND 500 GRADE |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Material | NICKEL ALLOY K-500 OVERALL |
| Width Across Flats | 0.188 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Internal Drive Style | HEXAGON |
| Material Document and Classification | QQ-N-286 CL A FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Head Diameter | 0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND |
| Head Style | FLAT CHAMFER |
| Thread Quantity Per Inch | 20 |
| Fastener Length | 0.500 INCHES NOMINAL IN |
| Head Height | 0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN |
| Thread Length | 0.500 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 255721 PIECE 89 PRIMARY | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
| 255416 PIECE 22 | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
| 255416 | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
| FF-S-86,TY VI,G R 500 | Zf Industrieantriebe Witten Gmbh (DEU) |
| FF-S-86 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
NSN 5305-01-432-9645 is a Screw,cap,socket Head, manufactured by Huntington Ingalls Inc Div Newport News Shipbuilding, classified under FSC 5305 (No Item Name Available). Status: active.
NSN 5305-01-432-9645 has 5 cross-referenced part numbers: 255721 PIECE 89 (Huntington Ingalls Inc Div Newport News Shipbuilding), 255416 PIECE 22 (Huntington Ingalls Inc Div Newport News Shipbuilding), 255416 (Huntington Ingalls Inc Div Newport News Shipbuilding), FF-S-86,TY VI,G R 500 (Zf Industrieantriebe Witten Gmbh), FF-S-86 (Federal Specifications Promulgated by General Services Administration Washington DC).
There are 3 known substitutes for 5305-01-432-9645: 1660-00-871-0818, 4820-01-430-3675, 5305-01-658-9375. Verify interchangeability with system specifications before substitution.
Key specifications for 255721 PIECE 89: Minimum Tensile Strength: 130000 POUNDS PER SQUARE INCH LBS; Thread Class: 3A A; Minimum Yield Strength: 90000 POUNDS PER SQUARE INCH LBS; Nondefinitive Spec/std Data: 6 TYPE AND 500 GRADE. 17 total characteristics are documented in the Federal Logistics Information System.