The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-00-018-1766, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Mack Trucks, Inc. Dba Macungie Operations Div Lehigh Valley Operations. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 13 commercial cross-references from 11 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-018-1766 |
| Primary Part Number | 1AX50 |
| Item Name | Screw,cap,hexagon Head |
| FSC / FSG | 5305 / 53 — No Item Name Available |
| Manufacturer | Mack Trucks, Inc. Dba Macungie Operations Div Lehigh Valley Operations |
| Status | ACTIVE |
| Fastener Length | 1.750 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.625 INCHES IN |
| Material | STEEL OVERALL |
| Hardness Rating | 23.0 ROCKWELL C MINIMUM AND 30.0 ROCKWELL C MAXIMUM OVERALL |
| Minimum Tensile Strength | 120000 POUNDS PER SQUARE INCH LBS |
| Width Between Flats | 0.860 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| Nondefinitive Spec/std Data | 2 TYPE AND 10P STYLE AND 5 GRADE |
| Thread Series Designator | UNF |
| Head Style | HEXAGON |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 18 |
| Thread Length | 1.500 INCHES MINIMUM IN |
| Head Height | 0.469 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 181766 | Navistar International Corporation Dba Navistar (USA) |
| 181766 | General Motors Corp (USA) |
| 1AX50 PRIMARY | Mack Trucks, Inc. Dba Macungie Operations Div Lehigh Valley Operations (USA) |
| 181766 | Diamond Reo Truck Co (USA) |
| 1AX50 | Volvo Group Government Sales Oceani Oceania Volvo Group Government Sales (AUS) |
| 1AX50 | Mack Trucks Inc Parts Opn (USA) |
| 181766 | General Motors Llc Dba General Motors Llc (USA) |
| FFS85TYPE2STYLE10PGRADE5 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
| 25168874 | Volvo Group Government Sales Oceani Oceania Volvo Group Government Sales (AUS) |
| 181766 | Army Weapons Command Attn Amswe-Ree-S (USA) |
| 105633 PRIMARY | Garwood/feller Inc Garwood Winch Div (USA) |
| N2251L7X | Diamond Reo Truck Co (USA) |
| K-500-CH-0646 PRIMARY | Kovatch Corp. (USA) |
NSN 5305-00-018-1766 is a Screw,cap,hexagon Head, manufactured by Mack Trucks, Inc. Dba Macungie Operations Div Lehigh Valley Operations, classified under FSC 5305 (No Item Name Available). Status: active.
NSN 5305-00-018-1766 has 13 cross-referenced part numbers: 181766 (Navistar International Corporation Dba Navistar), 181766 (General Motors Corp), 1AX50 (Mack Trucks, Inc. Dba Macungie Operations Div Lehigh Valley Operations), 181766 (Diamond Reo Truck Co), 1AX50 (Volvo Group Government Sales Oceani Oceania Volvo Group Government Sales) and 8 more.
There are 5 known substitutes for 5305-00-018-1766: 4730-00-090-0832, 3120-00-853-6141, 4730-01-263-3069 and 2 more. Verify interchangeability with system specifications before substitution.
Key specifications for 1AX50: Fastener Length: 1.750 INCHES NOMINAL IN; Nominal Thread Diameter: 0.625 INCHES IN; Material: STEEL OVERALL; Hardness Rating: 23.0 ROCKWELL C MINIMUM AND 30.0 ROCKWELL C MAXIMUM OVERALL. 15 total characteristics are documented in the Federal Logistics Information System.