PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

490722PC37Seat,helical Compression Spring

Naval Sea Systems Command · NSN 5340-00-468-0840 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-00-468-0840 — this item is cataloged by the U.S. Government under National Stock Number 5340-00-468-0840. Primary manufacturer part number: 490722PC37.
Features
  • Seat,helical Compression Spring — FSC 5340
  • Design Type: SOLID
  • Distance From End to First Step: 0.3750 INCHES NOMINAL IN
  • End Diameter: 1.6875 INCHES NOMINAL IN
  • Style Designator: SEAT
  • Material: STEEL
  • Bore Diameter: 0.3906 INCHES NOMINAL IN
  • First Step Diameter: 2.3750 INCHES NOMINAL IN
Applications
  • Mechanical energy storage
  • Vibration dampening
  • Return mechanism operation
  • Applications requiring Steel construction
General Description

The Seat,helical Compression Spring, cataloged under National Stock Number 5340-00-468-0840, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Naval Sea Systems Command. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5340-00-468-0840
Primary Part Number490722PC37
Item NameSeat,helical Compression Spring
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerNaval Sea Systems Command
StatusACTIVE
Design TypeSOLID
Distance From End to First Step0.3750 INCHES NOMINAL IN
End Diameter1.6875 INCHES NOMINAL IN
Style DesignatorSEAT
MaterialSTEEL
Bore Diameter0.3906 INCHES NOMINAL IN
First Step Diameter2.3750 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssueEA
Verified Substitutes 9
6240-00-044-42794535 INTERCHANGEABLE
Lamp,incandescent
American National Standards Institute Incorporated Dba American National Standards Institute
3895-00-161-1417 INTERCHANGEABLE
Brake Band Assy
5930-00-188-10263953 INTERCHANGEABLE
Switch,toggle
Bryant Electric
5360-01-022-07866446 INTERCHANGEABLE
Spring,helical,compression
Tescom Corp Dba Tescom Div Tescom
4310-01-283-49906446 INTERCHANGEABLE
Ring,piston
Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor
4730-01-352-193943766 INTERCHANGEABLE
Coupling Assembly,tube,flexible
Hyspan Precision Products, Inc. Dba Hyspan Precision Products Inc
6685-01-386-65473905-G503 INTERCHANGEABLE
Sensor,humidity
Howell Laboratories Inc Dba Howell Laboratories Inc
4440-01-388-33566446-G501 INTERCHANGEABLE
Drier,air-Gas,desiccant
Howell Laboratories Inc Dba Howell Laboratories Inc
6515-01-561-0899AS10S INTERCHANGEABLE
Holder,drill Bit,surgical
Medtronic Powered Surgical Solutions Dba Medtronic Mitas Rex
Cross-Reference Index
Part NumberManufacturer
490722PC37 PRIMARY Naval Sea Systems Command (USA)
6446 Derbyshire Machine & Tool Co (USA)
490731PC37 PRIMARY Naval Sea Systems Command (USA)
490732PC37 PRIMARY Naval Sea Systems Command (USA)
Related Parts
6240-00-044-4279INTERCHANGEABLE
LAMP,INCANDESCENT
4535
3895-00-161-1417INTERCHANGEABLE
BRAKE BAND ASSY
5930-00-188-1026INTERCHANGEABLE
SWITCH,TOGGLE
3953
5360-01-022-0786INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
6446
4310-01-283-4990INTERCHANGEABLE
RING,PISTON
6446
4730-01-352-1939INTERCHANGEABLE
COUPLING ASSEMBLY,TUBE,FLEXIBLE
43766
6685-01-386-6547INTERCHANGEABLE
SENSOR,HUMIDITY
3905-G503
4440-01-388-3356INTERCHANGEABLE
DRIER,AIR-GAS,DESICCANT
6446-G501
6515-01-561-0899INTERCHANGEABLE
HOLDER,DRILL BIT,SURGICAL
AS10S

Frequently Asked Questions

What is NSN 5340-00-468-0840?

NSN 5340-00-468-0840 is a Seat,helical Compression Spring, manufactured by Naval Sea Systems Command, classified under FSC 5340 (No Item Name Available). Status: active.

What are the part numbers for NSN 5340-00-468-0840?

NSN 5340-00-468-0840 has 4 cross-referenced part numbers: 490722PC37 (Naval Sea Systems Command), 6446 (Derbyshire Machine & Tool Co), 490731PC37 (Naval Sea Systems Command), 490732PC37 (Naval Sea Systems Command).

What NSN replaces 5340-00-468-0840?

There are 9 known substitutes for 5340-00-468-0840: 6240-00-044-4279, 3895-00-161-1417, 5930-00-188-1026 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 490722PC37?

Key specifications for 490722PC37: Design Type: SOLID; Distance From End to First Step: 0.3750 INCHES NOMINAL IN; End Diameter: 1.6875 INCHES NOMINAL IN; Style Designator: SEAT. 8 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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