PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

179871Screw,cap,hexagon Head

Rolls-Royce Solutions America Inc · NSN 5305-00-235-9991 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-235-9991 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-235-9991. Primary manufacturer part number: 179871.
Features
  • Screw,cap,hexagon Head — FSC 5305
  • Nominal Thread Diameter: 0.438 INCHES IN
  • Thread Direction: RIGHT-HAND
  • Material: STEEL OVERALL
  • Material Document and Classification: G-4435-M,CAGE 72572 MFR REF SINGLE MATERIAL RESPONSE OVERALL
  • Surface Treatment: ZINC OVERALL
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Fastener Length: 3.250 INCHES NOMINAL 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 5305-00-235-9991, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Rolls-Royce Solutions America Inc. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5305-00-235-9991
Primary Part Number179871
Item NameScrew,cap,hexagon Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerRolls-Royce Solutions America Inc
StatusCANCELLED
Nominal Thread Diameter0.438 INCHES IN
Thread DirectionRIGHT-HAND
MaterialSTEEL OVERALL
Material Document and ClassificationG-4435-M,CAGE 72572 MFR REF SINGLE MATERIAL RESPONSE OVERALL
Surface TreatmentZINC OVERALL
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Fastener Length3.250 INCHES NOMINAL IN
Head Height0.272 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN
Thread Class2A A
Head StyleHEXAGON
Thread Quantity Per Inch14
Thread Length1.066 INCHES MINIMUM AND 1.126 INCHES MAXIMUM IN
Width Between Flats0.612 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
5815-00-822-5364180161 INTERCHANGEABLE
Keytop,keyboard
Telemechanics Inc
5365-01-010-8062180161 INTERCHANGEABLE
Bushing,bonnet
Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions
5985-01-258-5851 INTERCHANGEABLE
Support,antenna
7020-01-291-6189 INTERCHANGEABLE
Computer,analog
Cross-Reference Index
Part NumberManufacturer
180161 General Motors Llc Dba General Motors Llc (USA)
179871 PRIMARY Rolls-Royce Solutions America Inc (USA)
180161 General Motors Corp (USA)
5305PL0951876 Jednolity Indeks Materialowy - Uniform Material Index (POL)
180161 Rolls-Royce Solutions America Inc (USA)
Related Parts
5815-00-822-5364INTERCHANGEABLE
KEYTOP,KEYBOARD
180161
5365-01-010-8062INTERCHANGEABLE
BUSHING,BONNET
180161
5985-01-258-5851INTERCHANGEABLE
SUPPORT,ANTENNA
7020-01-291-6189INTERCHANGEABLE
COMPUTER,ANALOG

Frequently Asked Questions

What is NSN 5305-00-235-9991?

NSN 5305-00-235-9991 is a Screw,cap,hexagon Head, manufactured by Rolls-Royce Solutions America Inc, classified under FSC 5305 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5305-00-235-9991?

NSN 5305-00-235-9991 has 5 cross-referenced part numbers: 180161 (General Motors Llc Dba General Motors Llc), 179871 (Rolls-Royce Solutions America Inc), 180161 (General Motors Corp), 5305PL0951876 (Jednolity Indeks Materialowy - Uniform Material Index), 180161 (Rolls-Royce Solutions America Inc).

What NSN replaces 5305-00-235-9991?

There are 4 known substitutes for 5305-00-235-9991: 5815-00-822-5364, 5365-01-010-8062, 5985-01-258-5851 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 179871?

Key specifications for 179871: Nominal Thread Diameter: 0.438 INCHES IN; Thread Direction: RIGHT-HAND; Material: STEEL OVERALL; Material Document and Classification: G-4435-M,CAGE 72572 MFR REF SINGLE MATERIAL RESPONSE OVERALL. 13 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5305-00-235-9991 still in active supply?

NSN 5305-00-235-9991 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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