PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

330574Screw,cap,socket Head

Telemechanics Inc · NSN 5305-00-422-2838 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-422-2838 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-422-2838. Primary manufacturer part number: 330574.
Features
  • Screw,cap,socket Head — FSC 5305
  • Surface Treatment: CADMIUM OVERALL
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Head Height: 0.021 INCHES NOMINAL IN
  • Thread Length: 0.188 INCHES NOMINAL IN
  • Head Diameter: 0.188 INCHES NOMINAL IN
  • Nominal Thread Diameter: 0.112 INCHES IN
  • Thread Quantity Per Inch: 40
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 5305-00-422-2838, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Telemechanics 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-00-422-2838
Primary Part Number330574
Item NameScrew,cap,socket Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerTelemechanics Inc
StatusACTIVE
Surface TreatmentCADMIUM OVERALL
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Head Height0.021 INCHES NOMINAL IN
Thread Length0.188 INCHES NOMINAL IN
Head Diameter0.188 INCHES NOMINAL IN
Nominal Thread Diameter0.112 INCHES IN
Thread Quantity Per Inch40
Thread Class2A A
Head StylePAN NO. 2
Thread DirectionRIGHT-HAND
Width Across Flats0.062 INCHES NOMINAL IN
Fastener Length0.281 INCHES NOMINAL IN
Internal Drive StyleHEXAGON
MaterialSTEEL OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
3020-01-234-4958 INTERCHANGEABLE
Gear,spur
6750-01-427-3456 INTERCHANGEABLE
Film,photographic
Cross-Reference Index
Part NumberManufacturer
330574 PRIMARY Telemechanics Inc (USA)
Related Parts
3020-01-234-4958INTERCHANGEABLE
GEAR,SPUR
6750-01-427-3456INTERCHANGEABLE
FILM,PHOTOGRAPHIC

Frequently Asked Questions

What is NSN 5305-00-422-2838?

NSN 5305-00-422-2838 is a Screw,cap,socket Head, manufactured by Telemechanics Inc, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-00-422-2838?

NSN 5305-00-422-2838 has 1 cross-referenced part number: 330574 (Telemechanics Inc).

What NSN replaces 5305-00-422-2838?

There are 2 known substitutes for 5305-00-422-2838: 3020-01-234-4958, 6750-01-427-3456. Verify interchangeability with system specifications before substitution.

What are the specifications of 330574?

Key specifications for 330574: Surface Treatment: CADMIUM OVERALL; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC); Head Height: 0.021 INCHES NOMINAL IN; Thread Length: 0.188 INCHES NOMINAL IN. 15 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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