PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

214584Screw,cap,hexagon Head

General Motors Corp · NSN 5305-00-021-4584 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-021-4584 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-021-4584. Primary manufacturer part number: 214584.
Features
  • Screw,cap,hexagon Head — FSC 5305
  • Thread Class: 2A A
  • Head Style: HEXAGON
  • Fastener Length: 0.750 INCHES NOMINAL IN
  • Material: STEEL OVERALL
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Width Between Flats: 0.438 INCHES NOMINAL IN
  • Thread Direction: RIGHT-HAND
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 5305-00-021-4584, 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 11 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-00-021-4584
Primary Part Number214584
Item NameScrew,cap,hexagon Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerGeneral Motors Corp
StatusACTIVE
Thread Class2A A
Head StyleHEXAGON
Fastener Length0.750 INCHES NOMINAL IN
MaterialSTEEL OVERALL
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Width Between Flats0.438 INCHES NOMINAL IN
Thread DirectionRIGHT-HAND
Thread Length0.750 INCHES MAXIMUM IN
Head Height0.188 INCHES NOMINAL IN
Thread Quantity Per Inch20
Nominal Thread Diameter0.250 INCHES IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
6850-00-584-2879 INTERCHANGEABLE
Layout Dye
6850-00-985-622780400 INTERCHANGEABLE
Layout Dye
Itw Dykem/dymon
6850-01-276-5396 INTERCHANGEABLE
Layout Dye
5310-01-303-8647214584 INTERCHANGEABLE
Washer,flat
Cummins Inc.
4930-01-494-9533214 584 INTERCHANGEABLE
Parts Kit,pump
Graco Inc.
7930-01-710-6820NUSHINE-IIS INTERCHANGEABLE
Polish,metal
Nuvite Chemical Compounds Corporation
Cross-Reference Index
Part NumberManufacturer
214584 General Motors Corp (USA)
214584 General Motors Llc Dba General Motors Llc (USA)
N59251B Diamond Reo Truck Co (USA)
DX100 Diamond Reo Truck Co (USA)
S5X1 White Motor Corp (USA)
Related Parts
6850-00-584-2879INTERCHANGEABLE
LAYOUT DYE
6850-00-985-6227INTERCHANGEABLE
LAYOUT DYE
80400
6850-01-276-5396INTERCHANGEABLE
LAYOUT DYE
5310-01-303-8647INTERCHANGEABLE
WASHER,FLAT
214584
4930-01-494-9533INTERCHANGEABLE
PARTS KIT,PUMP
214 584
7930-01-710-6820INTERCHANGEABLE
POLISH,METAL
NUSHINE-IIS

Frequently Asked Questions

What is NSN 5305-00-021-4584?

NSN 5305-00-021-4584 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 5305-00-021-4584?

NSN 5305-00-021-4584 has 5 cross-referenced part numbers: 214584 (General Motors Corp), 214584 (General Motors Llc Dba General Motors Llc), N59251B (Diamond Reo Truck Co), DX100 (Diamond Reo Truck Co), S5X1 (White Motor Corp).

What NSN replaces 5305-00-021-4584?

There are 6 known substitutes for 5305-00-021-4584: 6850-00-584-2879, 6850-00-985-6227, 6850-01-276-5396 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 214584?

Key specifications for 214584: Thread Class: 2A A; Head Style: HEXAGON; Fastener Length: 0.750 INCHES NOMINAL IN; Material: STEEL OVERALL. 11 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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