PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

144-40Bolt,machine

Trac Regulator Co., Inc. Dba Trac Regulator Co Inc · NSN 5306-01-385-4509 · FSC 5306 · No Item Name Available
Verified by PartsTable
NSN 5306-01-385-4509 — this item is cataloged by the U.S. Government under National Stock Number 5306-01-385-4509. Primary manufacturer part number: 144-40.
Features
  • Bolt,machine — FSC 5306
  • Width Between Flats: 0.593 INCHES NOMINAL IN
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Head Height: 0.195 INCHES MINIMUM AND 0.211 INCHES MAXIMUM IN
  • Thread Direction: RIGHT-HAND
  • Nominal Thread Diameter: 0.312 INCHES IN
  • Thread Length: 0.875 INCHES NOMINAL IN
  • Material Document and Classification: QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 304 Overall construction
General Description

The Bolt,machine, cataloged under National Stock Number 5306-01-385-4509, is classified within Federal Supply Class 5306 (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. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5306-01-385-4509
Primary Part Number144-40
Item NameBolt,machine
FSC / FSG5306 / 53 — No Item Name Available
ManufacturerTrac Regulator Co., Inc. Dba Trac Regulator Co Inc
StatusACTIVE
Width Between Flats0.593 INCHES NOMINAL IN
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Head Height0.195 INCHES MINIMUM AND 0.211 INCHES MAXIMUM IN
Thread DirectionRIGHT-HAND
Nominal Thread Diameter0.312 INCHES IN
Thread Length0.875 INCHES NOMINAL IN
Material Document and ClassificationQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Features ProvidedFINISHED HEAD
Thread Quantity Per Inch18
Head StyleHEXAGON
MaterialSTEEL COMP 304 OVERALL
Thread Class2A A
Fastener Length1.000 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3030-00-005-506914440 INTERCHANGEABLE
Belt,flat
Sioux Tools Inc
5133-00-189-9249 INTERCHANGEABLE
Drill,twist
5325-00-281-653011440 INTERCHANGEABLE
Ring,retaining
Napco International Llc Dba Napco International Inc
4320-00-398-521608-998-469-00-001 INTERCHANGEABLE
Plate,interstage
Itt Water & Wastewater U.s.a., Inc. Itt Water & Wastewater Dba Itt Water & Wastewater Usa, Flyg
5950-00-590-2223 INTERCHANGEABLE
Coil,radio Frequency
2510-00-770-311411466 INTERCHANGEABLE
Shock Absorber,direct Action
Tenneco Inc
5120-01-112-8347 INTERCHANGEABLE
Hammer,hand
6145-01-126-661214440 INTERCHANGEABLE
Cable,special Purpose,electrical
Glenair, Inc. Dba Glenair Inc
4730-01-141-9268 INTERCHANGEABLE
Gladhand,service
6150-01-221-603213225E4619 INTERCHANGEABLE
Cable Assembly,power,electrical
Cecom Lr Center
Cross-Reference Index
Part NumberManufacturer
144-40 PRIMARY Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
40402-4 FIND N0. 30 Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
114-40 Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
Related Parts
3030-00-005-5069INTERCHANGEABLE
BELT,FLAT
14440
5133-00-189-9249INTERCHANGEABLE
DRILL,TWIST
5325-00-281-6530INTERCHANGEABLE
RING,RETAINING
11440
4320-00-398-5216INTERCHANGEABLE
PLATE,INTERSTAGE
08-998-469-00-001
5950-00-590-2223INTERCHANGEABLE
COIL,RADIO FREQUENCY
2510-00-770-3114INTERCHANGEABLE
SHOCK ABSORBER,DIRECT ACTION
11466
5120-01-112-8347INTERCHANGEABLE
HAMMER,HAND
6145-01-126-6612INTERCHANGEABLE
CABLE,SPECIAL PURPOSE,ELECTRICAL
14440
4730-01-141-9268INTERCHANGEABLE
GLADHAND,SERVICE
6150-01-221-6032INTERCHANGEABLE
CABLE ASSEMBLY,POWER,ELECTRICAL
13225E4619
5340-01-252-6155INTERCHANGEABLE
CLAMP,LOOP
1/4-4-40
4820-01-289-3726INTERCHANGEABLE
STEM,FLUID VALVE

Frequently Asked Questions

What is NSN 5306-01-385-4509?

NSN 5306-01-385-4509 is a Bolt,machine, manufactured by Trac Regulator Co., Inc. Dba Trac Regulator Co Inc, classified under FSC 5306 (No Item Name Available). Status: active.

What are the part numbers for NSN 5306-01-385-4509?

NSN 5306-01-385-4509 has 3 cross-referenced part numbers: 144-40 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 40402-4 FIND N0. 30 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 114-40 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc).

What NSN replaces 5306-01-385-4509?

There are 12 known substitutes for 5306-01-385-4509: 3030-00-005-5069, 5133-00-189-9249, 5325-00-281-6530 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 144-40?

Key specifications for 144-40: Width Between Flats: 0.593 INCHES NOMINAL IN; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC); Head Height: 0.195 INCHES MINIMUM AND 0.211 INCHES MAXIMUM IN; 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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