PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40446-2 FIND 7Seat,helical Compression Spring

Trac Regulator Co., Inc. Dba Trac Regulator Co Inc · NSN 5340-01-351-0343 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-01-351-0343 — this item is cataloged by the U.S. Government under National Stock Number 5340-01-351-0343. Primary manufacturer part number: 40446-2 FIND 7.
Features
  • Seat,helical Compression Spring — FSC 5340
  • 2 verified cross-references
  • Primary manufacturer: Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
Applications
  • Mechanical energy storage
  • Vibration dampening
  • Return mechanism operation
General Description

The Seat,helical Compression Spring, cataloged under National Stock Number 5340-01-351-0343, is classified within Federal Supply Class 5340 (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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Catalog Facts
Item NameSeat,helical Compression Spring
FSC / FSG5340 — No Item Name Available (FSG 53)
ManufacturersTrac Regulator Co., Inc. Dba Trac Regulator Co Inc (CAGE 55378)
Technical Specifications
ParameterValue
NSN5340-01-351-0343
Primary Part Number40446-2 FIND 7
Item NameSeat,helical Compression Spring
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerTrac Regulator Co., Inc. Dba Trac Regulator Co Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssueEA
Verified Substitutes 5
4820-00-221-285071500 INTERCHANGEABLE
Parts Kit,valve
Pneudraulics, Inc.
5310-01-046-0599 INTERCHANGEABLE
Nut,plain,assembled Washer
5330-01-133-2780 INTERCHANGEABLE
Seal Kit
2530-01-153-185971500 INTERCHANGEABLE
Torque Rod,tandem Axle
Hutchens Industries Inc
7510-01-501-268671500 INTERCHANGEABLE
Portfolio
Smead Mfg Co
Cross-Reference Index
Part NumberManufacturer
40446-2 FIND 7 PRIMARY Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
715-00 Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
Related Parts
4820-00-221-2850INTERCHANGEABLE
PARTS KIT,VALVE
71500
5310-01-046-0599INTERCHANGEABLE
NUT,PLAIN,ASSEMBLED WASHER
5330-01-133-2780INTERCHANGEABLE
SEAL KIT
2530-01-153-1859INTERCHANGEABLE
TORQUE ROD,TANDEM AXLE
71500
7510-01-501-2686INTERCHANGEABLE
PORTFOLIO
71500

Frequently Asked Questions

What is NSN 5340-01-351-0343?

NSN 5340-01-351-0343 is a Seat,helical Compression Spring, manufactured by Trac Regulator Co., Inc. Dba Trac Regulator Co Inc, classified under FSC 5340 (No Item Name Available). Status: active.

What are the part numbers for NSN 5340-01-351-0343?

NSN 5340-01-351-0343 has 2 cross-referenced part numbers: 40446-2 FIND 7 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 715-00 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc).

What NSN replaces 5340-01-351-0343?

There are 5 known substitutes for 5340-01-351-0343: 4820-00-221-2850, 5310-01-046-0599, 5330-01-133-2780 and 2 more. Verify interchangeability with system specifications before substitution.

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