PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

179850Screw,cap,hexagon Head

General Motors Corp · NSN 5305-00-017-9850 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-017-9850 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-017-9850. Primary manufacturer part number: 179850.
Features
  • Screw,cap,hexagon Head — FSC 5305
  • Thread Length: 1.000 INCHES MINIMUM IN
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Material: STEEL OVERALL
  • Nondefinitive Spec/std Data: 2 TYPE AND 10P STYLE AND 5 GRADE
  • Hardness Rating: 23.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
  • Thread Direction: RIGHT-HAND
  • Nominal Thread Diameter: 0.375 INCHES IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-00-017-9850, 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 8 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-00-017-9850
Primary Part Number179850
Item NameScrew,cap,hexagon Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerGeneral Motors Corp
StatusACTIVE
Thread Length1.000 INCHES MINIMUM IN
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
MaterialSTEEL OVERALL
Nondefinitive Spec/std Data2 TYPE AND 10P STYLE AND 5 GRADE
Hardness Rating23.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
Thread DirectionRIGHT-HAND
Nominal Thread Diameter0.375 INCHES IN
Minimum Tensile Strength120000 POUNDS PER SQUARE INCH LBS
Head Height0.226 INCHES MINIMUM AND 0.243 INCHES MAXIMUM IN
Thread Class2A A
Width Between Flats0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
Thread Quantity Per Inch16
Fastener Length2.750 INCHES NOMINAL IN
Head StyleHEXAGON
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5305-00-269-3219B-0611 INTERCHANGEABLE
Screw,cap,hexagon Head
The Gorman-Rupp Company Div Gorman-Rupp
6520-01-173-245411513 INTERCHANGEABLE
Bleaching Agent,dental
Sultan Chemists Inc
5306-01-506-2251179850 INTERCHANGEABLE
Bolt,machine
Rolls-Royce Solutions America Inc
Cross-Reference Index
Part NumberManufacturer
179850 General Motors Corp (USA)
14X3242 Napco International Llc Dba Napco International Inc (USA)
MS35295-69 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
FFS85TYPE2STYLE10PGRADE5 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
179850 Delphi France SAS (FRA)
0916990 Agco Corp Parts Opn (USA)
Q1816 Navistar International Corporation Dba Navistar (USA)
916990 Agco Corp Parts Opn (USA)
Related Parts
5305-00-269-3219INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
B-0611
6520-01-173-2454INTERCHANGEABLE
BLEACHING AGENT,DENTAL
11513
5306-01-506-2251INTERCHANGEABLE
BOLT,MACHINE
179850

Frequently Asked Questions

What is NSN 5305-00-017-9850?

NSN 5305-00-017-9850 is a Screw,cap,hexagon Head, manufactured by General Motors Corp, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-00-017-9850?

NSN 5305-00-017-9850 has 8 cross-referenced part numbers: 179850 (General Motors Corp), 14X3242 (Napco International Llc Dba Napco International Inc), MS35295-69 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), FFS85TYPE2STYLE10PGRADE5 (Federal Specifications Promulgated by General Services Administration Washington DC), 179850 (Delphi France SAS) and 3 more.

What NSN replaces 5305-00-017-9850?

There are 3 known substitutes for 5305-00-017-9850: 5305-00-269-3219, 6520-01-173-2454, 5306-01-506-2251. Verify interchangeability with system specifications before substitution.

What are the specifications of 179850?

Key specifications for 179850: Thread Length: 1.000 INCHES MINIMUM IN; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC); Material: STEEL OVERALL; Nondefinitive Spec/std Data: 2 TYPE AND 10P STYLE AND 5 GRADE. 14 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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