PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

43421Spring,helical,compression

Eaton Aerospace Llc Dba Eaton Aerospace Jackson · NSN 5360-01-373-3318 · FSC 5360 · No Item Name Available
Verified by PartsTable
NSN 5360-01-373-3318 — this item is cataloged by the U.S. Government under National Stock Number 5360-01-373-3318. Primary manufacturer part number: 43421.
Features
  • Spring,helical,compression — FSC 5360
  • Spring Free Outside Diameter: 0.610 INCHES NOMINAL IN
  • Style Designator: CYLINDRICAL
  • Spring Deflection Rate: 0.640 POUNDS PER INCH NOMINAL LBS
  • Coil Quantity: 6-1/2
  • Surface Treatment: PASSIVATE OVERALL
  • Material: STEEL COMP 631 OVERALL
  • Coil Helix Direction: LEFT-HAND OR RIGHT-HAND
Applications
  • Mechanical energy storage
  • Vibration dampening
  • Return mechanism operation
  • Applications requiring Steel Comp 631 Overall construction
General Description

The Spring,helical,compression, cataloged under National Stock Number 5360-01-373-3318, is classified within Federal Supply Class 5360 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Eaton Aerospace Llc Dba Eaton Aerospace Jackson. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5360-01-373-3318
Primary Part Number43421
Item NameSpring,helical,compression
FSC / FSG5360 / 53 — No Item Name Available
ManufacturerEaton Aerospace Llc Dba Eaton Aerospace Jackson
StatusACTIVE
Spring Free Outside Diameter0.610 INCHES NOMINAL IN
Style DesignatorCYLINDRICAL
Spring Deflection Rate0.640 POUNDS PER INCH NOMINAL LBS
Coil Quantity6-1/2
Surface TreatmentPASSIVATE OVERALL
MaterialSTEEL COMP 631 OVERALL
Coil Helix DirectionLEFT-HAND OR RIGHT-HAND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5965-00-116-8982 INTERCHANGEABLE
Microphone,dynamic
5330-00-285-944104244A INTERCHANGEABLE
Seal,plain Encased
Cnh Industrial America Llc Dba Cnh America
2815-00-920-2111150200 INTERCHANGEABLE
Ring,piston
Cummins Inc.
5950-00-921-4068993478-01 INTERCHANGEABLE
Transformer,power
Ge Aviation Systems Llc
5935-00-924-9637 INTERCHANGEABLE
Connector,receptacle,electrical
3455-01-046-1474B94.19 TABLE 51 13/32 INTERCHANGEABLE
Cutter,milling,end
American National Standards Institute Incorporated Dba American National Standards Institute
5930-01-117-265343421 INTERCHANGEABLE
Switch,flow
Setra Systems, Inc. Dba Gems Sensors
7050-01-506-43774342-1 INTERCHANGEABLE
Converter,digital to Digital
Omnitron Systems Technology, Inc. Dba Omnitron Systems Technology Inc
4820-01-531-388243421 INTERCHANGEABLE
Parts Kit,butterfly Valve
Meggitt North Hollywood Inc
Cross-Reference Index
Part NumberManufacturer
43421 PRIMARY Eaton Aerospace Llc Dba Eaton Aerospace Jackson (USA)
Related Parts
5965-00-116-8982INTERCHANGEABLE
MICROPHONE,DYNAMIC
5330-00-285-9441INTERCHANGEABLE
SEAL,PLAIN ENCASED
04244A
2815-00-920-2111INTERCHANGEABLE
RING,PISTON
150200
5950-00-921-4068INTERCHANGEABLE
TRANSFORMER,POWER
993478-01
5935-00-924-9637INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
3455-01-046-1474INTERCHANGEABLE
CUTTER,MILLING,END
B94.19 TABLE 51 13/32
5930-01-117-2653INTERCHANGEABLE
SWITCH,FLOW
43421
7050-01-506-4377INTERCHANGEABLE
CONVERTER,DIGITAL TO DIGITAL
4342-1
4820-01-531-3882INTERCHANGEABLE
PARTS KIT,BUTTERFLY VALVE
43421

Frequently Asked Questions

What is NSN 5360-01-373-3318?

NSN 5360-01-373-3318 is a Spring,helical,compression, manufactured by Eaton Aerospace Llc Dba Eaton Aerospace Jackson, classified under FSC 5360 (No Item Name Available). Status: active.

What are the part numbers for NSN 5360-01-373-3318?

NSN 5360-01-373-3318 has 1 cross-referenced part number: 43421 (Eaton Aerospace Llc Dba Eaton Aerospace Jackson).

What NSN replaces 5360-01-373-3318?

There are 9 known substitutes for 5360-01-373-3318: 5965-00-116-8982, 5330-00-285-9441, 2815-00-920-2111 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 43421?

Key specifications for 43421: Spring Free Outside Diameter: 0.610 INCHES NOMINAL IN; Style Designator: CYLINDRICAL; Spring Deflection Rate: 0.640 POUNDS PER INCH NOMINAL LBS; Coil Quantity: 6-1/2. 7 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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