The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-00-721-5896, 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 Parts Opn. 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: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5305-00-721-5896 |
| Primary Part Number | 1AX17 |
| Item Name | Screw,cap,hexagon Head |
| FSC / FSG | 5305 / 53 — No Item Name Available |
| Manufacturer | Mack Trucks Inc Parts Opn |
| Status | CANCELLED |
| Thread Class | 2A A |
| Head Height | 0.226 INCHES MINIMUM AND 0.243 INCHES MAXIMUM IN |
| Hardness Rating | 23.0 ROCKWELL C MINIMUM AND 30.0 ROCKWELL C MAXIMUM OVERALL |
| Material | STEEL OVERALL |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Fastener Length | 1.375 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM AND CHROMATE OR ZINC AND CHROMATE OVERALL |
| Width Between Flats | 0.551 INCHES MINIMUM AND 0.563 INCHES MAXIMUM IN |
| Thread Series Designator | UNF |
| Thread Quantity Per Inch | 24 |
| Thread Length | 1.000 INCHES MINIMUM IN |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Minimum Tensile Strength | 120000 POUNDS PER SQUARE INCH LBS |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 1AX17 | Mack Trucks Inc Parts Opn (USA) |
| FFS85TYPE11STYLE10PGRADE5 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
| 181641 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| MS35298-63 | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
| 3AX704 | Mack Trucks Inc Parts Opn (USA) |
| 60X3209 | Napco International Llc Dba Napco International Inc (USA) |
NSN 5305-00-721-5896 is a Screw,cap,hexagon Head, manufactured by Mack Trucks Inc Parts Opn, classified under FSC 5305 (No Item Name Available). Status: cancelled.
NSN 5305-00-721-5896 has 6 cross-referenced part numbers: 1AX17 (Mack Trucks Inc Parts Opn), FFS85TYPE11STYLE10PGRADE5 (Federal Specifications Promulgated by General Services Administration Washington DC), 181641 (U S Army Tank Automotive Command Amsta-Im-Mm), MS35298-63 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), 3AX704 (Mack Trucks Inc Parts Opn) and 1 more.
There is 1 known substitute for 5305-00-721-5896: 4730-01-186-3541. Verify interchangeability with system specifications before substitution.
Key specifications for 1AX17: Thread Class: 2A A; Head Height: 0.226 INCHES MINIMUM AND 0.243 INCHES MAXIMUM IN; Hardness Rating: 23.0 ROCKWELL C MINIMUM AND 30.0 ROCKWELL C MAXIMUM OVERALL; Material: STEEL OVERALL. 14 total characteristics are documented in the Federal Logistics Information System.
NSN 5305-00-721-5896 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.