PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

55039Screw,cap,socket Head

Avox Systems Inc Dba Avox Systems Inc · NSN 5305-00-454-0466 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-454-0466 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-454-0466. Primary manufacturer part number: 55039.
Features
  • Screw,cap,socket Head — FSC 5305
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Material: STEEL OVERALL
  • Surface Treatment: CADMIUM OVERALL
  • Width Across Flats: 0.078 INCHES NOMINAL IN
  • Thread Length: 0.378 INCHES MINIMUM AND 0.440 INCHES MAXIMUM IN
  • Thread Quantity Per Inch: 32
  • Nominal Thread Diameter: 0.138 INCHES IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Screw,cap,socket Head, cataloged under National Stock Number 5305-00-454-0466, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Avox Systems Inc Dba Avox Systems Inc. Government technical data includes 14 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. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-00-454-0466
Primary Part Number55039
Item NameScrew,cap,socket Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerAvox Systems Inc Dba Avox Systems Inc
StatusACTIVE
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
MaterialSTEEL OVERALL
Surface TreatmentCADMIUM OVERALL
Width Across Flats0.078 INCHES NOMINAL IN
Thread Length0.378 INCHES MINIMUM AND 0.440 INCHES MAXIMUM IN
Thread Quantity Per Inch32
Nominal Thread Diameter0.138 INCHES IN
Fastener Length0.440 INCHES NOMINAL IN
Head Diameter0.250 INCHES MINIMUM AND 0.262 INCHES MAXIMUM IN
Head StyleBUTTON
Thread DirectionRIGHT-HAND
Internal Drive StyleHEXAGON
Head Height0.063 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
Thread Class3A A
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5905-00-644-7608 INTERCHANGEABLE
Resistor,fixed,wire Wound,induct
5133-00-838-5371 INTERCHANGEABLE
Drill,twist
4130-00-915-5341 INTERCHANGEABLE
Sight Glass Assembly
3455-01-046-1475 INTERCHANGEABLE
Cutter,milling,end
5330-01-105-7251455039 INTERCHANGEABLE
Seal,plain Encased
Federal-Mogul Corp Government Sales Dept
4720-01-120-548055039 INTERCHANGEABLE
Hose Assembly,metallic
Tyco Fire Products Lp
6680-01-165-314155039 INTERCHANGEABLE
Gage Rod,liquid Level
Avibank Mfg., Inc. Dba Avibank Manufacturing Inc
4120-01-592-769655039 INTERCHANGEABLE
Air Conditioner
Applied Companies
Cross-Reference Index
Part NumberManufacturer
55039 Avox Systems Inc Dba Avox Systems Inc (USA)
Related Parts
5905-00-644-7608INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND,INDUCT
5133-00-838-5371INTERCHANGEABLE
DRILL,TWIST
4130-00-915-5341INTERCHANGEABLE
SIGHT GLASS ASSEMBLY
3455-01-046-1475INTERCHANGEABLE
CUTTER,MILLING,END
5330-01-105-7251INTERCHANGEABLE
SEAL,PLAIN ENCASED
455039
4720-01-120-5480INTERCHANGEABLE
HOSE ASSEMBLY,METALLIC
55039
6680-01-165-3141INTERCHANGEABLE
GAGE ROD,LIQUID LEVEL
55039
4120-01-592-7696INTERCHANGEABLE
AIR CONDITIONER
55039

Frequently Asked Questions

What is NSN 5305-00-454-0466?

NSN 5305-00-454-0466 is a Screw,cap,socket Head, manufactured by Avox Systems Inc Dba Avox Systems Inc, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-00-454-0466?

NSN 5305-00-454-0466 has 1 cross-referenced part number: 55039 (Avox Systems Inc Dba Avox Systems Inc).

What NSN replaces 5305-00-454-0466?

There are 8 known substitutes for 5305-00-454-0466: 5905-00-644-7608, 5133-00-838-5371, 4130-00-915-5341 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 55039?

Key specifications for 55039: Thread Series Designator: UNIFIED NATIONAL COARSE (UNC); Material: STEEL OVERALL; Surface Treatment: CADMIUM OVERALL; Width Across Flats: 0.078 INCHES NOMINAL IN. 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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