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PartsTable / COMPONENT / RB-646
RB-646 ✓ 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 RISER,CONDENSATE RETURN is a the manufacturer industrial component. Key specifications include angle: 60.0 DEGREES, shape: RECTANGULAR W/ROUNDED CORNERS, width: 2.000 INCHES NOMINAL IN, length: 72.000 INCHES IN, material: BRONZE ACTUATING ELEMENT, dial_size: 2 IN. DIA 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 4420-01-167-7109, 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
RB-646
NSN: 4420-01-167-7109
FSC: 4420
CAGE: 95368 — AERCO INTERNATIONAL, INC. DBA AERCO INTERNATIONAL INC (USA)
SPECIFICATIONS
angle60.0 DEGREES
shapeRECTANGULAR W/ROUNDED CORNERS
width2.000 INCHES NOMINAL IN
length72.000 INCHES IN
materialBRONZE ACTUATING ELEMENT
dial_size2 IN. DIA IN
food_typeSPONGE
thickness0.188 INCHES NOMINAL IN
bezel_typeSNAP-ON
body_width1.500 INCHES NOMINAL IN
bore_shapeSTRAIGHT
scale_namePRESSURE
NSN4420-01-167-7109
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RISER,CONDENSATE RETURN TITLE COMPONENT PN RB-646 MFR RISER,CONDENSATE RETUR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
NAVY-8676Interchangeable
interchangeable cross-reference
interchangeable
644Interchangeable
interchangeable cross-reference
interchangeable
RB644Interchangeable
interchangeable cross-reference
interchangeable
SA438PC6Interchangeable
interchangeable cross-reference
interchangeable
RB613Interchangeable
interchangeable cross-reference
interchangeable
645RBInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is RB-646?
RB-646 is a RISER,CONDENSATE RETURN.
What parts can replace RB-646?
There are 14 known substitutes for RB-646: NAVY-8676, 644, RB644 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for RB-646?
RB-646 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4420-01-167-7109. 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