PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

C243Spring,helical,extension

Matthew Warren, Inc. Dba Century Spring Corp. Div Century Spring Corp. · NSN 5360-01-388-5783 · FSC 5360 · No Item Name Available
Verified by PartsTable
NSN 5360-01-388-5783 — this item is cataloged by the U.S. Government under National Stock Number 5360-01-388-5783. Primary manufacturer part number: C243.
Features
  • Spring,helical,extension — FSC 5360
  • Surface Treatment: ZINC OVERALL
  • Design Type: CLOSED
  • Material: STEEL OVERALL
  • Spring Free Outside Diameter: 0.625 INCHES NOMINAL IN
  • Inside Diameter: 0.517 INCHES NOMINAL IN
  • Coil Helix Direction: RIGHT-HAND OR LEFT-HAND
  • Stock Diameter: 0.054 INCHES NOMINAL IN
Applications
  • Mechanical energy storage
  • Vibration dampening
  • Return mechanism operation
  • Applications requiring Steel Overall construction
General Description

The Spring,helical,extension, cataloged under National Stock Number 5360-01-388-5783, is classified within Federal Supply Class 5360 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Matthew Warren, Inc. Dba Century Spring Corp. Div Century Spring Corp.. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5360-01-388-5783
Primary Part NumberC243
Item NameSpring,helical,extension
FSC / FSG5360 / 53 — No Item Name Available
ManufacturerMatthew Warren, Inc. Dba Century Spring Corp. Div Century Spring Corp.
StatusACTIVE
Surface TreatmentZINC OVERALL
Design TypeCLOSED
MaterialSTEEL OVERALL
Spring Free Outside Diameter0.625 INCHES NOMINAL IN
Inside Diameter0.517 INCHES NOMINAL IN
Coil Helix DirectionRIGHT-HAND OR LEFT-HAND
Stock Diameter0.054 INCHES NOMINAL IN
Spring Deflection Rate0.650 POUNDS PER INCH NOMINAL LBS
Style DesignatorCYLINDRICAL
Load Rating8.820 POUNDS NOMINAL LBS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5975-00-636-0064C24-3 INTERCHANGEABLE
Conduit,metal,flexible
Page Chester Ltd Dba Cooperative Industries Div Cooperative Industries Aerospace Defense
6685-00-983-9408C243 INTERCHANGEABLE
Thermometer,self-Indicating
Ametek, Inc. Div Aerospace & Defense
6105-01-218-9236 INTERCHANGEABLE
Motor,alternating Current
6140-01-337-0210624MF INTERCHANGEABLE
Battery,storage
Electro Battery Mfg Co
Cross-Reference Index
Part NumberManufacturer
643 Matthew Warren, Inc. Dba Century Spring Corp. Div Century Spring Corp. (USA)
C243 PRIMARY Matthew Warren, Inc. Dba Century Spring Corp. Div Century Spring Corp. (USA)
CC13003039 Equipos Moviles De Campana Arpa Sa (ESP)
Related Parts
5975-00-636-0064INTERCHANGEABLE
CONDUIT,METAL,FLEXIBLE
C24-3
6685-00-983-9408INTERCHANGEABLE
THERMOMETER,SELF-INDICATING
C243
6105-01-218-9236INTERCHANGEABLE
MOTOR,ALTERNATING CURRENT
6140-01-337-0210INTERCHANGEABLE
BATTERY,STORAGE
624MF

Frequently Asked Questions

What is NSN 5360-01-388-5783?

NSN 5360-01-388-5783 is a Spring,helical,extension, manufactured by Matthew Warren, Inc. Dba Century Spring Corp. Div Century Spring Corp., classified under FSC 5360 (No Item Name Available). Status: active.

What are the part numbers for NSN 5360-01-388-5783?

NSN 5360-01-388-5783 has 3 cross-referenced part numbers: 643 (Matthew Warren, Inc. Dba Century Spring Corp. Div Century Spring Corp.), C243 (Matthew Warren, Inc. Dba Century Spring Corp. Div Century Spring Corp.), CC13003039 (Equipos Moviles De Campana Arpa Sa).

What NSN replaces 5360-01-388-5783?

There are 4 known substitutes for 5360-01-388-5783: 5975-00-636-0064, 6685-00-983-9408, 6105-01-218-9236 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of C243?

Key specifications for C243: Surface Treatment: ZINC OVERALL; Design Type: CLOSED; Material: STEEL OVERALL; Spring Free Outside Diameter: 0.625 INCHES NOMINAL IN. 10 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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