PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

125181Screw,machine

Telemechanics Inc · NSN 5305-00-324-8773 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-324-8773 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-324-8773. Primary manufacturer part number: 125181.
Features
  • Screw,machine — FSC 5305
  • Head Style: FLAT CHAMFER
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Internal Drive Style: CROSS RECESS TYPE 1
  • Thread Class: 3A A
  • Head Height: 0.062 INCHES NOMINAL IN
  • Fastener Length: 0.375 INCHES NOMINAL IN
  • Thread Length: 0.375 INCHES MAXIMUM IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Screw,machine, cataloged under National Stock Number 5305-00-324-8773, 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 2 commercial cross-references from 2 manufacturers, 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
NSN5305-00-324-8773
Primary Part Number125181
Item NameScrew,machine
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerTelemechanics Inc
StatusCANCELLED
Head StyleFLAT CHAMFER
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Internal Drive StyleCROSS RECESS TYPE 1
Thread Class3A A
Head Height0.062 INCHES NOMINAL IN
Fastener Length0.375 INCHES NOMINAL IN
Thread Length0.375 INCHES MAXIMUM IN
Screw MaterialSTEEL
Thread DirectionRIGHT-HAND
Screw Surface TreatmentNICKEL
Thread Quantity Per Inch56
Head Diameter0.188 INCHES NOMINAL IN
Nominal Thread Diameter0.086 INCHES IN
Features ProvidedCASEHARDENED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
5930-00-070-18675105-125138 INTERCHANGEABLE
Switch,rotary
Fluke Corp
5330-00-085-4566 INTERCHANGEABLE
Disk,solid,plain
3010-01-534-6210 INTERCHANGEABLE
Coupling,shaft,flexible
Cross-Reference Index
Part NumberManufacturer
125138 American Telephone and Telegraph Co (USA)
125181 PRIMARY Telemechanics Inc (USA)
Related Parts
5930-00-070-1867INTERCHANGEABLE
SWITCH,ROTARY
5105-125138
5330-00-085-4566INTERCHANGEABLE
DISK,SOLID,PLAIN
3010-01-534-6210INTERCHANGEABLE
COUPLING,SHAFT,FLEXIBLE

Frequently Asked Questions

What is NSN 5305-00-324-8773?

NSN 5305-00-324-8773 is a Screw,machine, manufactured by Telemechanics Inc, classified under FSC 5305 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5305-00-324-8773?

NSN 5305-00-324-8773 has 2 cross-referenced part numbers: 125138 (American Telephone and Telegraph Co), 125181 (Telemechanics Inc).

What NSN replaces 5305-00-324-8773?

There are 3 known substitutes for 5305-00-324-8773: 5930-00-070-1867, 5330-00-085-4566, 3010-01-534-6210. Verify interchangeability with system specifications before substitution.

What are the specifications of 125181?

Key specifications for 125181: Head Style: FLAT CHAMFER; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC); Internal Drive Style: CROSS RECESS TYPE 1; Thread Class: 3A A. 14 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5305-00-324-8773 still in active supply?

NSN 5305-00-324-8773 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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