The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-00-018-1649, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Federal Specifications Promulgated by General Services Administration Washington DC. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-018-1649 |
| Primary Part Number | FFS85TYPE2STYLE10PGRADE5 |
| Item Name | Screw,cap,hexagon Head |
| FSC / FSG | 5305 / 53 — No Item Name Available |
| Manufacturer | Federal Specifications Promulgated by General Services Administration Washington DC |
| Status | ACTIVE |
| Head Style | HEXAGON |
| Width Between Flats | 0.551 INCHES MINIMUM AND 0.563 INCHES MAXIMUM IN |
| Material | STEEL OVERALL |
| Hardness Rating | 23.0 ROCKWELL C MINIMUM AND 30.0 ROCKWELL C MAXIMUM OVERALL |
| Thread Length | 1.000 INCHES MINIMUM IN |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Minimum Tensile Strength | 120000 POUNDS PER SQUARE INCH LBS |
| Surface Treatment | CADMIUM AND CHROMATE OR ZINC AND CHROMATE OVERALL |
| Nondefinitive Spec/std Data | 2 TYPE AND 10P STYLE AND 5 GRADE |
| Thread Series Designator | UNF |
| Head Height | 0.226 INCHES MINIMUM AND 0.243 INCHES MAXIMUM IN |
| Thread Class | 2A A |
| Thread Direction | RIGHT-HAND |
| Fastener Length | 2.250 INCHES NOMINAL IN |
| Thread Quantity Per Inch | 24 |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| FFS85TYPE2STYLE10PGRADE5 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
| 181649 | Navistar International Corporation Dba Navistar (USA) |
| MS35298-67 | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
| 60X3215 | Napco International Llc Dba Napco International Inc (USA) |
| 181649 | General Motors Corp (USA) |
| 1AX47 | Mack Trucks Inc Parts Opn (USA) |
| 3AX694 | Mack Trucks Inc Parts Opn (USA) |
NSN 5305-00-018-1649 is a Screw,cap,hexagon Head, manufactured by Federal Specifications Promulgated by General Services Administration Washington DC, classified under FSC 5305 (No Item Name Available). Status: active.
NSN 5305-00-018-1649 has 7 cross-referenced part numbers: FFS85TYPE2STYLE10PGRADE5 (Federal Specifications Promulgated by General Services Administration Washington DC), 181649 (Navistar International Corporation Dba Navistar), MS35298-67 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), 60X3215 (Napco International Llc Dba Napco International Inc), 181649 (General Motors Corp) and 2 more.
There are 2 known substitutes for 5305-00-018-1649: 4820-00-020-7145, 5130-01-400-0066. Verify interchangeability with system specifications before substitution.
Key specifications for FFS85TYPE2STYLE10PGRADE5: Head Style: HEXAGON; Width Between Flats: 0.551 INCHES MINIMUM AND 0.563 INCHES MAXIMUM 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.