The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-00-018-1431, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is The W.w. Williams Company, Llc. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-018-1431 |
| Primary Part Number | 181431 |
| Item Name | Screw,cap,hexagon Head |
| FSC / FSG | 5305 / 53 — No Item Name Available |
| Manufacturer | The W.w. Williams Company, Llc |
| Status | ACTIVE |
| Thread Quantity Per Inch | 20 |
| Head Style | HEXAGON |
| Head Height | 0.302 INCHES MINIMUM AND 0.323 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND |
| Material | STEEL OVERALL |
| Nondefinitive Spec/std Data | 2 TYPE AND 10P STYLE |
| Thread Series Designator | UNF |
| Hardness Rating | 23.0 ROCKWELL C MINIMUM AND 30.0 ROCKWELL C MAXIMUM OVERALL |
| Thread Class | 2A A |
| Fastener Length | 1.500 INCHES NOMINAL IN |
| Width Between Flats | 0.736 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN |
| Minimum Tensile Strength | 120000 POUNDS PER SQUARE INCH LBS |
| Thread Length | 1.250 INCHES MINIMUM IN |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 181431 | The W.w. Williams Company, Llc (USA) |
| BCVX4LQ | CAGE 00000 |
| 181431 | General Motors Corp (USA) |
| 181431 | Allison Transmission Inc Dba Allison Transmission, Inc (USA) |
| 11FM10BX1-2-20X1-2 | Coltec Industries Inc. Dba Fairbanks Morse Engine Div Fairbanks Morse Engine (USA) |
| MS35296-113 | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
NSN 5305-00-018-1431 is a Screw,cap,hexagon Head, manufactured by The W.w. Williams Company, Llc, classified under FSC 5305 (No Item Name Available). Status: active.
NSN 5305-00-018-1431 has 6 cross-referenced part numbers: 181431 (The W.w. Williams Company, Llc), BCVX4LQ, 181431 (General Motors Corp), 181431 (Allison Transmission Inc Dba Allison Transmission, Inc), 11FM10BX1-2-20X1-2 (Coltec Industries Inc. Dba Fairbanks Morse Engine Div Fairbanks Morse Engine) and 1 more.
There is 1 known substitute for 5305-00-018-1431: 5305-00-725-4183. Verify interchangeability with system specifications before substitution.
Key specifications for 181431: Thread Quantity Per Inch: 20; Head Style: HEXAGON; Head Height: 0.302 INCHES MINIMUM AND 0.323 INCHES MAXIMUM IN; Thread Direction: RIGHT-HAND. 14 total characteristics are documented in the Federal Logistics Information System.