The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-00-017-9856, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is General Motors Corp. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 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 | 5305-00-017-9856 |
| Primary Part Number | 179856 |
| Item Name | Screw,cap,hexagon Head |
| FSC / FSG | 5305 / 53 — No Item Name Available |
| Manufacturer | General Motors Corp |
| Status | ACTIVE |
| Width Between Flats | 0.612 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN |
| Thread Length | 0.750 INCHES MINIMUM IN |
| Nominal Thread Diameter | 0.438 INCHES IN |
| Thread Class | 2A A |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Material | STEEL OVERALL |
| Hardness Rating | 23.0 ROCKWELL C MINIMUM AND 30.0 ROCKWELL C MAXIMUM OVERALL |
| Nondefinitive Spec/std Data | 2 TYPE AND 10P STYLE AND 5 GRADE |
| Thread Quantity Per Inch | 14 |
| Head Height | 0.272 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN |
| Fastener Length | 0.750 INCHES NOMINAL IN |
| Head Style | HEXAGON |
| Minimum Tensile Strength | 120000 POUNDS PER SQUARE INCH LBS |
| Thread Direction | RIGHT-HAND |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 179856 | General Motors Corp (USA) |
| MS35295-83 | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
| PC179856 | Power Components (deutschland) Gmbh (DEU) |
| 179856 | Rolls-Royce Solutions America Inc (USA) |
| FFS85TYPE2STYLE10PGRADE5 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
NSN 5305-00-017-9856 is a Screw,cap,hexagon Head, manufactured by General Motors Corp, classified under FSC 5305 (No Item Name Available). Status: active.
NSN 5305-00-017-9856 has 5 cross-referenced part numbers: 179856 (General Motors Corp), MS35295-83 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), PC179856 (Power Components (deutschland) Gmbh), 179856 (Rolls-Royce Solutions America Inc), FFS85TYPE2STYLE10PGRADE5 (Federal Specifications Promulgated by General Services Administration Washington DC).
There is 1 known substitute for 5305-00-017-9856: 6625-00-912-6672. Verify interchangeability with system specifications before substitution.
Key specifications for 179856: Width Between Flats: 0.612 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN; Thread Length: 0.750 INCHES MINIMUM IN; Nominal Thread Diameter: 0.438 INCHES IN; Thread Class: 2A A. 14 total characteristics are documented in the Federal Logistics Information System.