PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

420AX1Screw,cap,hexagon Head

Oshkosh Defense Llc · NSN 5305-01-687-0454 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-01-687-0454 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-687-0454. Primary manufacturer part number: 420AX1.
Features
  • Screw,cap,hexagon Head — FSC 5305
  • Surface Treatment: ZINC AND CHROMATE OVERALL
  • Thread Class: 2A A
  • Head Height: 0.243 INCHES NOMINAL IN
  • Head Style: HEXAGON
  • Thread Direction: RIGHT-HAND
  • Thread Length: 1.000 INCHES MINIMUM IN
  • Width Between Flats: 0.562 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 5305-01-687-0454, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Oshkosh Defense Llc. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-01-687-0454
Primary Part Number420AX1
Item NameScrew,cap,hexagon Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerOshkosh Defense Llc
StatusACTIVE
Surface TreatmentZINC AND CHROMATE OVERALL
Thread Class2A A
Head Height0.243 INCHES NOMINAL IN
Head StyleHEXAGON
Thread DirectionRIGHT-HAND
Thread Length1.000 INCHES MINIMUM IN
Width Between Flats0.562 INCHES NOMINAL IN
Thread Quantity Per Inch16
Fastener Length1.000 INCHES NOMINAL IN
Nominal Thread Diameter0.380 INCHES IN
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
ColorYELLOW OVERALL
MaterialSTEEL OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5306-01-084-53902EP990 INTERCHANGEABLE
Bolt,machine
Oshkosh Defense Llc
Cross-Reference Index
Part NumberManufacturer
AEB02C375A00WA2DG1 The American Society of Mechanical Engineers (USA)
420AX1 PRIMARY Oshkosh Defense Llc (USA)
Related Parts
5306-01-084-5390INTERCHANGEABLE
BOLT,MACHINE
2EP990

Frequently Asked Questions

What is NSN 5305-01-687-0454?

NSN 5305-01-687-0454 is a Screw,cap,hexagon Head, manufactured by Oshkosh Defense Llc, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-01-687-0454?

NSN 5305-01-687-0454 has 2 cross-referenced part numbers: AEB02C375A00WA2DG1 (The American Society of Mechanical Engineers), 420AX1 (Oshkosh Defense Llc).

What NSN replaces 5305-01-687-0454?

There is 1 known substitute for 5305-01-687-0454: 5306-01-084-5390. Verify interchangeability with system specifications before substitution.

What are the specifications of 420AX1?

Key specifications for 420AX1: Surface Treatment: ZINC AND CHROMATE OVERALL; Thread Class: 2A A; Head Height: 0.243 INCHES NOMINAL IN; End Item Identification: 2320-01-544-2244. 16 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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