PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

400644Spring,helical,compression

Allied-Signal Inc Dba Allied-Signal Aerospace Co Electrodynamics Div · NSN 5360-00-526-9617 · FSC 5360 · No Item Name Available
Verified by PartsTable
NSN 5360-00-526-9617 — this item is cataloged by the U.S. Government under National Stock Number 5360-00-526-9617. Primary manufacturer part number: 400644.
Features
  • Spring,helical,compression — FSC 5360
  • Spring Free Length: 0.500 INCHES NOMINAL IN
  • End Style: SPRING END,SQUARED AND GROUND BOTH ENDS
  • Coil Helix Direction: RIGHT-HAND
  • Style Designator: CYLINDRICAL
  • Spring Free Outside Diameter: 0.281 INCHES MINIMUM AND 0.297 INCHES MAXIMUM IN
  • Material: STEEL OVERALL
  • Material Document and Classification: MIL-S-6101 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Applications
  • Mechanical energy storage
  • Vibration dampening
  • Return mechanism operation
  • Applications requiring Steel Overall construction
General Description

The Spring,helical,compression, cataloged under National Stock Number 5360-00-526-9617, is classified within Federal Supply Class 5360 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Allied-Signal Inc Dba Allied-Signal Aerospace Co Electrodynamics Div. Government technical data includes 8 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5360-00-526-9617
Primary Part Number400644
Item NameSpring,helical,compression
FSC / FSG5360 / 53 — No Item Name Available
ManufacturerAllied-Signal Inc Dba Allied-Signal Aerospace Co Electrodynamics Div
StatusCANCELLED
Spring Free Length0.500 INCHES NOMINAL IN
End StyleSPRING END,SQUARED AND GROUND BOTH ENDS
Coil Helix DirectionRIGHT-HAND
Style DesignatorCYLINDRICAL
Spring Free Outside Diameter0.281 INCHES MINIMUM AND 0.297 INCHES MAXIMUM IN
MaterialSTEEL OVERALL
Material Document and ClassificationMIL-S-6101 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Inside Diameter0.2268 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
6620-01-142-799640-637-1 INTERCHANGEABLE
Indicator,rate of Flow
Meggitt (new Hampshire), Inc
4820-01-214-3808255-03 INTERCHANGEABLE
Seat,valve
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-214-3905383-08 INTERCHANGEABLE
Stem,fluid Valve
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-214-7059254-03 INTERCHANGEABLE
Seat,valve
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-214-7183253-02 INTERCHANGEABLE
Plunger,valve
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-214-718460299-00 INTERCHANGEABLE
Seat Tool,valve
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-216-644940064-401 INTERCHANGEABLE
Valve,regulating,temperature
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-341-4267 INTERCHANGEABLE
Valve,regulating,temperature
4820-01-341-439850146-14 INTERCHANGEABLE
Regulator,thermostatic Temperatu
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-357-966840064-405 INTERCHANGEABLE
Valve,regulating,temperature
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
Cross-Reference Index
Part NumberManufacturer
400644 Allied-Signal Inc Dba Allied-Signal Aerospace Co Electrodynamics Div (USA)
406371 Allied-Signal Inc Dba Allied-Signal Aerospace Co Electrodynamics Div (USA)
400644 Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) (USA)
406371 Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) (USA)
Related Parts
6620-01-142-7996INTERCHANGEABLE
INDICATOR,RATE OF FLOW
40-637-1
4820-01-214-3808INTERCHANGEABLE
SEAT,VALVE
255-03
4820-01-214-3905INTERCHANGEABLE
STEM,FLUID VALVE
383-08
4820-01-214-7059INTERCHANGEABLE
SEAT,VALVE
254-03
4820-01-214-7183INTERCHANGEABLE
PLUNGER,VALVE
253-02
4820-01-214-7184INTERCHANGEABLE
SEAT TOOL,VALVE
60299-00
4820-01-216-6449INTERCHANGEABLE
VALVE,REGULATING,TEMPERATURE
40064-401
4820-01-341-4267INTERCHANGEABLE
VALVE,REGULATING,TEMPERATURE
4820-01-341-4398INTERCHANGEABLE
REGULATOR,THERMOSTATIC TEMPERATU
50146-14
4820-01-357-9668INTERCHANGEABLE
VALVE,REGULATING,TEMPERATURE
40064-405
3120-01-495-4001INTERCHANGEABLE
BUSHING HALF,SLEEVE
400644
5850-01-518-6405INTERCHANGEABLE
DIAPHRAGM,ASSEMBLY
40064-4

Frequently Asked Questions

What is NSN 5360-00-526-9617?

NSN 5360-00-526-9617 is a Spring,helical,compression, manufactured by Allied-Signal Inc Dba Allied-Signal Aerospace Co Electrodynamics Div, classified under FSC 5360 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5360-00-526-9617?

NSN 5360-00-526-9617 has 4 cross-referenced part numbers: 400644 (Allied-Signal Inc Dba Allied-Signal Aerospace Co Electrodynamics Div), 406371 (Allied-Signal Inc Dba Allied-Signal Aerospace Co Electrodynamics Div), 400644 (Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road)), 406371 (Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road)).

What NSN replaces 5360-00-526-9617?

There are 12 known substitutes for 5360-00-526-9617: 6620-01-142-7996, 4820-01-214-3808, 4820-01-214-3905 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 400644?

Key specifications for 400644: Spring Free Length: 0.500 INCHES NOMINAL IN; End Style: SPRING END,SQUARED AND GROUND BOTH ENDS; Coil Helix Direction: RIGHT-HAND; Style Designator: CYLINDRICAL. 8 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5360-00-526-9617 still in active supply?

NSN 5360-00-526-9617 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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