PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

8-32X3-8Thumbscrew

Usm Corp Sub of Emhart Industries Inc Parker-Kalon Fastener Div · NSN 5305-00-649-8071 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-649-8071 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-649-8071. Primary manufacturer part number: 8-32X3-8.
Features
  • Thumbscrew — FSC 5305
  • Nominal Thread Diameter: 0.164 INCHES IN
  • Surface Treatment: CADMIUM OVERALL
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Material: STEEL OVERALL
  • Point Style: FLAT
  • Thread Quantity Per Inch: 32
  • Thread Direction: RIGHT-HAND
Applications
  • Applications requiring Steel Overall construction
General Description

The Thumbscrew, cataloged under National Stock Number 5305-00-649-8071, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Usm Corp Sub of Emhart Industries Inc Parker-Kalon Fastener Div. 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
NSN5305-00-649-8071
Primary Part Number8-32X3-8
Item NameThumbscrew
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerUsm Corp Sub of Emhart Industries Inc Parker-Kalon Fastener Div
StatusACTIVE
Nominal Thread Diameter0.164 INCHES IN
Surface TreatmentCADMIUM OVERALL
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
MaterialSTEEL OVERALL
Point StyleFLAT
Thread Quantity Per Inch32
Thread DirectionRIGHT-HAND
Head Height0.312 INCHES NOMINAL IN
Head StyleTHUMB NO. 3
Thread Class2A A
Thread Length0.375 INCHES MAXIMUM IN
Width Between Flats0.500 INCHES NOMINAL IN
Fastener Length0.375 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5305-00-613-8264 INTERCHANGEABLE
Screw,machine
5305-00-702-7576SEELSKREWS8-32X38 INTERCHANGEABLE
Screw,machine
Apm Hexseal Corp
5305-00-722-4880 INTERCHANGEABLE
Screw,machine
5305-00-753-7150 INTERCHANGEABLE
Screw,machine
5305-00-855-0961MS24629-35 INTERCHANGEABLE
Screw,tapping
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
Cross-Reference Index
Part NumberManufacturer
8-32X3-8 Usm Corp Sub of Emhart Industries Inc Parker-Kalon Fastener Div (USA)
Related Parts
5305-00-613-8264INTERCHANGEABLE
SCREW,MACHINE
5305-00-702-7576INTERCHANGEABLE
SCREW,MACHINE
SEELSKREWS8-32X38
5305-00-722-4880INTERCHANGEABLE
SCREW,MACHINE
5305-00-753-7150INTERCHANGEABLE
SCREW,MACHINE
5305-00-855-0961INTERCHANGEABLE
SCREW,TAPPING
MS24629-35

Frequently Asked Questions

What is NSN 5305-00-649-8071?

NSN 5305-00-649-8071 is a Thumbscrew, manufactured by Usm Corp Sub of Emhart Industries Inc Parker-Kalon Fastener Div, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-00-649-8071?

NSN 5305-00-649-8071 has 1 cross-referenced part number: 8-32X3-8 (Usm Corp Sub of Emhart Industries Inc Parker-Kalon Fastener Div).

What NSN replaces 5305-00-649-8071?

There are 5 known substitutes for 5305-00-649-8071: 5305-00-613-8264, 5305-00-702-7576, 5305-00-722-4880 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 8-32X3-8?

Key specifications for 8-32X3-8: Nominal Thread Diameter: 0.164 INCHES IN; Surface Treatment: CADMIUM OVERALL; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC); Material: STEEL OVERALL. 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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