PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

54721Setscrew

Hamilton Sundstrand Corporation Dba Collins Aerospace · NSN 5305-00-025-6234 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-025-6234 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-025-6234. Primary manufacturer part number: 54721.
Features
  • Setscrew — FSC 5305
  • Thread Length: 0.217 INCHES MINIMUM AND 0.338 INCHES MAXIMUM IN
  • Head Style: HEADLESS (SETSCREW)
  • Thread Series Designator: UNS
  • Hardness Rating: 80.0 ROCKWELL B MINIMUM AND 100.0 ROCKWELL B MAXIMUM OVERALL
  • Nominal Thread Diameter: 0.500 INCHES IN
  • Internal Drive Style: HEXAGON
  • Width Across Flats: 0.250 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN
Applications
  • Applications requiring Steel Comp 1212 Overall construction
General Description

The Setscrew, cataloged under National Stock Number 5305-00-025-6234, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Hamilton Sundstrand Corporation Dba Collins Aerospace. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5305-00-025-6234
Primary Part Number54721
Item NameSetscrew
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerHamilton Sundstrand Corporation Dba Collins Aerospace
StatusCANCELLED
Thread Length0.217 INCHES MINIMUM AND 0.338 INCHES MAXIMUM IN
Head StyleHEADLESS (SETSCREW)
Thread Series DesignatorUNS
Hardness Rating80.0 ROCKWELL B MINIMUM AND 100.0 ROCKWELL B MAXIMUM OVERALL
Nominal Thread Diameter0.500 INCHES IN
Internal Drive StyleHEXAGON
Width Across Flats0.250 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN
MaterialSTEEL COMP 1212 OVERALL
Fastener Length0.703 INCHES NOMINAL IN
Thread Class2A A
Thread DirectionRIGHT-HAND
Point StyleFLAT
Thread Quantity Per Inch18
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
4730-00-192-874854721 INTERCHANGEABLE
Parts Kit,steam Trap
Spirax Sarco Inc Dba Spirax Sarco
5935-00-681-43035472-1 INTERCHANGEABLE
Connector,receptacle,electrical
Microwave Devices Inc
5935-00-928-7837 INTERCHANGEABLE
Connector,plug,electrical
Cross-Reference Index
Part NumberManufacturer
54721 PRIMARY Hamilton Sundstrand Corporation Dba Collins Aerospace (USA)
Related Parts
4730-00-192-8748INTERCHANGEABLE
PARTS KIT,STEAM TRAP
54721
5935-00-681-4303INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
5472-1
5935-00-928-7837INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL

Frequently Asked Questions

What is NSN 5305-00-025-6234?

NSN 5305-00-025-6234 is a Setscrew, manufactured by Hamilton Sundstrand Corporation Dba Collins Aerospace, classified under FSC 5305 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5305-00-025-6234?

NSN 5305-00-025-6234 has 1 cross-referenced part number: 54721 (Hamilton Sundstrand Corporation Dba Collins Aerospace).

What NSN replaces 5305-00-025-6234?

There are 3 known substitutes for 5305-00-025-6234: 4730-00-192-8748, 5935-00-681-4303, 5935-00-928-7837. Verify interchangeability with system specifications before substitution.

What are the specifications of 54721?

Key specifications for 54721: Thread Length: 0.217 INCHES MINIMUM AND 0.338 INCHES MAXIMUM IN; Head Style: HEADLESS (SETSCREW); Thread Series Designator: UNS; Special Features: HOLE 0.312 IN. DIA BY 0.406 IN. LG ALONG LONGITUDINAL AXIS IN THD END IN. 14 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5305-00-025-6234 still in active supply?

NSN 5305-00-025-6234 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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