PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

34393Screw,machine

Barnes Group Inc. Dba Barnes Distribution · NSN 5305-01-028-0592 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-01-028-0592 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-028-0592. Primary manufacturer part number: 34393.
Features
  • Screw,machine — FSC 5305
  • Thread Quantity Per Inch: 20
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Screw Material: STEEL
  • Thread Direction: RIGHT-HAND
  • Head Diameter: 0.443 INCHES MINIMUM AND 0.472 INCHES MAXIMUM IN
  • Head Height: 0.160 INCHES MINIMUM AND 0.175 INCHES MAXIMUM IN
  • Nominal Thread Diameter: 0.250 INCHES IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Screw,machine, cataloged under National Stock Number 5305-01-028-0592, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Barnes Group Inc. Dba Barnes Distribution. 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-01-028-0592
Primary Part Number34393
Item NameScrew,machine
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerBarnes Group Inc. Dba Barnes Distribution
StatusACTIVE
Thread Quantity Per Inch20
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Screw MaterialSTEEL
Thread DirectionRIGHT-HAND
Head Diameter0.443 INCHES MINIMUM AND 0.472 INCHES MAXIMUM IN
Head Height0.160 INCHES MINIMUM AND 0.175 INCHES MAXIMUM IN
Nominal Thread Diameter0.250 INCHES IN
Thread Length3.900 INCHES NOMINAL IN
Internal Drive StyleSLOT
Screw Surface TreatmentCHROMIUM
Fastener Length4.000 INCHES NOMINAL IN
Head StyleROUND
Thread Class2A A
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
3455-00-015-8418TABLE 15, 605 INTERCHANGEABLE
Cutter,milling,woodruff Keyseat
The American Society of Mechanical Engineers
5330-00-286-8149 INTERCHANGEABLE
Seal,plain Encased
5970-00-295-947934393 INTERCHANGEABLE
Insulator,plate
Honeywell International Inc. Div Aerospace - Torrance
2940-00-352-797834393 INTERCHANGEABLE
Base
Arvinmeritor Inc
2530-00-758-003912637467 INTERCHANGEABLE
Cylinder Assembly,hydraulic Brak
U S Army Tank Automotive Command Amsta-Im-Mm
Cross-Reference Index
Part NumberManufacturer
34393 PRIMARY Barnes Group Inc. Dba Barnes Distribution (USA)
Related Parts
3455-00-015-8418INTERCHANGEABLE
CUTTER,MILLING,WOODRUFF KEYSEAT
TABLE 15, 605
5330-00-286-8149INTERCHANGEABLE
SEAL,PLAIN ENCASED
5970-00-295-9479INTERCHANGEABLE
INSULATOR,PLATE
34393
2940-00-352-7978INTERCHANGEABLE
BASE
34393
2530-00-758-0039INTERCHANGEABLE
CYLINDER ASSEMBLY,HYDRAULIC BRAK
12637467

Frequently Asked Questions

What is NSN 5305-01-028-0592?

NSN 5305-01-028-0592 is a Screw,machine, manufactured by Barnes Group Inc. Dba Barnes Distribution, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-01-028-0592?

NSN 5305-01-028-0592 has 1 cross-referenced part number: 34393 (Barnes Group Inc. Dba Barnes Distribution).

What NSN replaces 5305-01-028-0592?

There are 5 known substitutes for 5305-01-028-0592: 3455-00-015-8418, 5330-00-286-8149, 5970-00-295-9479 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 34393?

Key specifications for 34393: Thread Quantity Per Inch: 20; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC); Screw Material: STEEL; Thread Direction: RIGHT-HAND. 13 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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