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Technical Data Sheet
PartsTable / COMPONENT / R-8-9-20
R-8-9-20 ✓ Verified by PartsTable
— · COMPONENT
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 RING,OPERATING is a the manufacturer industrial component. Key specifications include part_name_assigned_by_controlling_agency: SENDER WATER TEMP 0.50 INCH IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5365-01-090-6579, 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
R-8-9-20
NSN: 5365-01-090-6579
FSC: 5365
CAGE: 31923 — TODD COMBUSTION INC (USA)
SPECIFICATIONS
general_characteristics_item_descriptionCAST STEEL; 25.437 IN. OD; 20.500 IN. ID; 1.250 IN. THK; W/10 HOLES 0.500-13 UNC THD,EQUALLY SPACED ON 23.468 IN. DIA BOLT CIRCLE; ALSO HAS A INTERNAL GEAR SEGMENT IN
part_name_assigned_by_controlling_agencySENDER WATER TEMP 0.50 INCH IN
NSN5365-01-090-6579
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RING,OPERATING TITLE COMPONENT PN R-8-9-20 MFR RING,OPERATING
KEY FEATURES
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: CAST STEEL; 25.437 IN. OD; 20.500 IN. ID; 1.250 IN. THK; W/10 HOLES 0.500-13 UNC THD,EQUALLY SPACED ON 23.468 IN. DIA BOLT CIRCLE; ALSO HAS A INTERNAL GEAR SEGMENT IN
TECHNICAL CHARACTERISTICS (FLIS)
GENERAL CHARACTERISTICS ITEM DESCRIPTIONCAST STEEL; 25.437 IN. OD; 20.500 IN. ID; 1.250 IN. THK; W/10 HOLES 0.500-13 UNC THD,EQUALLY SPACED ON 23.468 IN. DIA BOLT CIRCLE; ALSO HAS A INTERNAL GEAR SEGMENT IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
37346Interchangeable
interchangeable cross-reference
interchangeable
AMS-QQ-A-200/3Interchangeable
interchangeable cross-reference
interchangeable
1M568Interchangeable
interchangeable cross-reference
interchangeable
QQ-A-200/3Interchangeable
interchangeable cross-reference
interchangeable
314733PC50Interchangeable
interchangeable cross-reference
interchangeable
48204-21PC59Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is R-8-9-20?
R-8-9-20 is a RING,OPERATING.
What parts can replace R-8-9-20?
There are 17 known substitutes for R-8-9-20: 37346, AMS-QQ-A-200/3, 1M568 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for R-8-9-20?
R-8-9-20 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5365-01-090-6579. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026