PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

321780Spring,helical,extension

Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling · NSN 5360-00-816-7663 · FSC 5360 · No Item Name Available
Verified by PartsTable
NSN 5360-00-816-7663 — this item is cataloged by the U.S. Government under National Stock Number 5360-00-816-7663. Primary manufacturer part number: 321780.
Features
  • Spring,helical,extension — FSC 5360
  • Hook Radius: 0.219 INCHES NOMINAL BOTH ENDS IN
  • Coil to Hook Inside Length: 0.375 INCHES NOMINAL BOTH ENDS IN
  • Inside Diameter: 0.448 INCHES NOMINAL IN
  • Surface Treatment: PHOSPHATE OR PAINT OVERALL
  • Coil Quantity: 15-3/4
  • Spring Free Length: 3.302 INCHES NOMINAL IN
  • Spring Free Outside Diameter: 0.688 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 5360-00-816-7663, is classified within Federal Supply Class 5360 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5360-00-816-7663
Primary Part Number321780
Item NameSpring,helical,extension
FSC / FSG5360 / 53 — No Item Name Available
ManufacturerHyster-Yale Group, Inc. Div Hyster-Yale Materials Handling
StatusACTIVE
Hook Radius0.219 INCHES NOMINAL BOTH ENDS IN
Coil to Hook Inside Length0.375 INCHES NOMINAL BOTH ENDS IN
Inside Diameter0.448 INCHES NOMINAL IN
Surface TreatmentPHOSPHATE OR PAINT OVERALL
Coil Quantity15-3/4
Spring Free Length3.302 INCHES NOMINAL IN
Spring Free Outside Diameter0.688 INCHES NOMINAL IN
Design TypeCLOSED
End StyleMACHINE HALF LOOP BOTH ENDS
Style DesignatorCYLINDRICAL
Coil Helix DirectionRIGHT-HAND OR LEFT-HAND
MaterialSTEEL OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5940-00-020-0156200156 INTERCHANGEABLE
Terminal,lug
Army, United States Department of the Dba Rock Island Arsenal Jmtc
5905-00-106-9350 INTERCHANGEABLE
Resistor,fixed,composition
5133-00-189-9301 INTERCHANGEABLE
Drill,twist
5331-00-250-9738200156 INTERCHANGEABLE
O-Ring
Eaton Aerospace, Llc Dba Jackson South
5950-00-945-0362200-156 INTERCHANGEABLE
Inductor
Thales Security Systems Uk Limited
5360-01-109-5313 INTERCHANGEABLE
Spring,helical,compression
5310-01-309-7078200-156 INTERCHANGEABLE
Washer,flat
M. E. Industries, Inc.
4320-01-319-5453200156 INTERCHANGEABLE
Impeller,pump,centrifugal
Sihi Pumps Ltd
4730-01-384-6041200156 INTERCHANGEABLE
Connector,air Hose
Gilian Instrument Corp
8145-01-702-49514535808 INTERCHANGEABLE
Shipping and Storage Container,m
Teledyne Flir Unmanned Ground Systems, Inc
Cross-Reference Index
Part NumberManufacturer
200156 Hyster-Yale Group, Inc. (USA)
35P324 White Farm Equipment Co Sub of Tic Investment Inc (USA)
FC27082 Federal Mogul Corp Sub Wagner Brake Moog Automotive Div (USA)
F27082 Federal Mogul Corp Sub Wagner Brake Moog Automotive Div (USA)
321780 PRIMARY Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling (USA)
Related Parts
5940-00-020-0156INTERCHANGEABLE
TERMINAL,LUG
200156
5905-00-106-9350INTERCHANGEABLE
RESISTOR,FIXED,COMPOSITION
5133-00-189-9301INTERCHANGEABLE
DRILL,TWIST
5331-00-250-9738INTERCHANGEABLE
O-RING
200156
5950-00-945-0362INTERCHANGEABLE
INDUCTOR
200-156
5360-01-109-5313INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
5310-01-309-7078INTERCHANGEABLE
WASHER,FLAT
200-156
4320-01-319-5453INTERCHANGEABLE
IMPELLER,PUMP,CENTRIFUGAL
200156
4730-01-384-6041INTERCHANGEABLE
CONNECTOR,AIR HOSE
200156
8145-01-702-4951INTERCHANGEABLE
SHIPPING AND STORAGE CONTAINER,M
4535808

Frequently Asked Questions

What is NSN 5360-00-816-7663?

NSN 5360-00-816-7663 is a Spring,helical,extension, manufactured by Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling, classified under FSC 5360 (No Item Name Available). Status: active.

What are the part numbers for NSN 5360-00-816-7663?

NSN 5360-00-816-7663 has 5 cross-referenced part numbers: 200156 (Hyster-Yale Group, Inc.), 35P324 (White Farm Equipment Co Sub of Tic Investment Inc), FC27082 (Federal Mogul Corp Sub Wagner Brake Moog Automotive Div), F27082 (Federal Mogul Corp Sub Wagner Brake Moog Automotive Div), 321780 (Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling).

What NSN replaces 5360-00-816-7663?

There are 10 known substitutes for 5360-00-816-7663: 5940-00-020-0156, 5905-00-106-9350, 5133-00-189-9301 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 321780?

Key specifications for 321780: Hook Radius: 0.219 INCHES NOMINAL BOTH ENDS IN; Coil to Hook Inside Length: 0.375 INCHES NOMINAL BOTH ENDS IN; Inside Diameter: 0.448 INCHES NOMINAL IN; Surface Treatment: PHOSPHATE OR PAINT OVERALL. 12 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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