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Technical Data Sheet
400644 ✓ Verified by PartsTable
· MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The VALVE,REGULATING,TEMPERATURE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY BODY, end_style: SPRING END,SQUARED AND GROUND BOTH ENDS, body_style: STRAIGHT THRU, bulb_length: 12.000 INCHES NOMINAL IN, thread_class: 3A SINGLE THREADED PORTION A, usage_design: CONTROL VALVE FLOW. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5360-00-526-9617, indicating validated use in U.S.

government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
MRO MRO_GENERAL 400644
NSN: 5360-00-526-9617
FSC: 5360
CAGE: 77068 — ALLIED-SIGNAL INC DBA ALLIED-SIGNAL AEROSPACE CO ELECTRODYNAMICS DIV (USA)
SPECIFICATIONS
materialCOPPER ALLOY BODY
end_styleSPRING END,SQUARED AND GROUND BOTH ENDS
body_styleSTRAIGHT THRU
bulb_length12.000 INCHES NOMINAL IN
thread_class3A SINGLE THREADED PORTION A
usage_designCONTROL VALVE FLOW
thread_length0.172 INCHES NOMINAL SINGLE THREADED PORTION IN
flange_diameter1.750 INCHES NOMINAL IN
inside_diameter0.2268 INCHES NOMINAL IN
thermostat_typeBULB
special_featuresNEXT HIGHER ASSEMBLY, PART NUMBER 100502
style_designatorTHREADED FLANGED
NSN5360-00-526-9617
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available VALVE,REGULATING,TEMPERATURE TITLE COMPONENT PN 400644 MFR VALVE,REGULATING,TEMPE
KEY FEATURES
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
INSIDE DIAMETER: 0.2268 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
40-637-1Interchangeable
interchangeable cross-reference
interchangeable
16VF024-1Interchangeable
interchangeable cross-reference
interchangeable
255-03Interchangeable
interchangeable cross-reference
interchangeable
40064-4 ITEM 20Interchangeable
interchangeable cross-reference
interchangeable
40064-4Interchangeable
interchangeable cross-reference
interchangeable
40064-4 ITEM 16Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 400644?
400644 is a VALVE,REGULATING,TEMPERATURE. It is classified as a MRO (MRO_GENERAL).
What parts can replace 400644?
There are 20 known substitutes for 400644: 40-637-1, 16VF024-1, 255-03 and 17 more. Substitute compatibility should be verified for your specific system.
Is 400644 still available?
400644 is currently cancelled.
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