PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

144-31Screw,machine

Trac Regulator Co., Inc. Dba Trac Regulator Co Inc · NSN 5305-01-307-8597 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-01-307-8597 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-307-8597. Primary manufacturer part number: 144-31.
Features
  • Screw,machine — FSC 5305
  • 2 verified cross-references
  • Primary manufacturer: Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Screw,machine, cataloged under National Stock Number 5305-01-307-8597, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Trac Regulator Co., Inc. Dba Trac Regulator Co Inc. This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameScrew,machine
FSC / FSG5305 — No Item Name Available (FSG 53)
ManufacturersTrac Regulator Co., Inc. Dba Trac Regulator Co Inc (CAGE 55378)
Technical Specifications
ParameterValue
NSN5305-01-307-8597
Primary Part Number144-31
Item NameScrew,machine
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerTrac Regulator Co., Inc. Dba Trac Regulator Co Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
4910-00-255-8664 INTERCHANGEABLE
Pilot,valve Seat Refacing
5360-01-294-6751 INTERCHANGEABLE
Spring,helical,compression
6515-01-364-858014431 INTERCHANGEABLE
Heel Cup,orthopedic
Chicago Medical Equipment Co
Cross-Reference Index
Part NumberManufacturer
144-31 PRIMARY Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
40041-801 FIND 2 Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
Related Parts
4910-00-255-8664INTERCHANGEABLE
PILOT,VALVE SEAT REFACING
5360-01-294-6751INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
6515-01-364-8580INTERCHANGEABLE
HEEL CUP,ORTHOPEDIC
14431

Frequently Asked Questions

What is NSN 5305-01-307-8597?

NSN 5305-01-307-8597 is a Screw,machine, manufactured by Trac Regulator Co., Inc. Dba Trac Regulator Co Inc, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-01-307-8597?

NSN 5305-01-307-8597 has 2 cross-referenced part numbers: 144-31 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 40041-801 FIND 2 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc).

What NSN replaces 5305-01-307-8597?

There are 3 known substitutes for 5305-01-307-8597: 4910-00-255-8664, 5360-01-294-6751, 6515-01-364-8580. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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