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R529 ✓ 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 SWITCH,PRESSURE-THERMOSTATIC is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY K-500 OVERALL, corner_shape: SQUARE OUTSIDE RIGHT CORNER, flange_width: 0.2500 INCHES NOMINAL IN, overall_length: 5.1562 INCHES NOMINAL IN, keyway_dimension: 0.8750 INCHES NOMINAL INTERNAL KEYWAY LENGTH IN, special_features: PLAIN END COUNTERBORED,2.363 IN. DIA,0.190 IN.

DEEP 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 4320-00-627-2289, 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
R529
NSN: 4320-00-627-2289
FSC: 4320
CAGE: 63857 — CIRCOR NAVAL SOLUTIONS LLC DBA WARREN PUMPS (USA)
SPECIFICATIONS
materialNICKEL ALLOY K-500 OVERALL
corner_shapeSQUARE OUTSIDE RIGHT CORNER
flange_width0.2500 INCHES NOMINAL IN
overall_length5.1562 INCHES NOMINAL IN
keyway_dimension0.8750 INCHES NOMINAL INTERNAL KEYWAY LENGTH IN
special_featuresPLAIN END COUNTERBORED,2.363 IN. DIA,0.190 IN. DEEP IN
style_designatorSOLID, EXTERNAL FLANGE ONE END
body_inside_diameter2.0000 INCHES NOMINAL IN
body_outside_diameter2.5000 INCHES NOMINAL IN
flange_outside_diameter2.6250 INCHES NOMINAL IN
material_document_and_classificationQQ-N-286 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN4320-00-627-2289
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SWITCH,PRESSURE-THERMOSTATIC TITLE COMPONENT PN R529 MFR SWITCH,PRESSURE-THERMO
KEY FEATURES
•
CORNER SHAPE: SQUARE INSIDE RIGHT CORNER
•
KEYWAY DIMENSION: 0.8750 INCHES NOMINAL INTERNAL KEYWAY LENGTH IN
•
FLANGE WIDTH: 0.2500 INCHES NOMINAL IN
•
STYLE DESIGNATOR: SOLID, EXTERNAL FLANGE ONE END
•
BODY INSIDE DIAMETER: 2.0000 INCHES NOMINAL IN
•
FLANGE OUTSIDE DIAMETER: 2.6250 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
CORNER SHAPESQUARE INSIDE RIGHT CORNER
KEYWAY DIMENSION0.8750 INCHES NOMINAL INTERNAL KEYWAY LENGTH IN
CORNER SHAPESQUARE OUTSIDE RIGHT CORNER
FLANGE WIDTH0.2500 INCHES NOMINAL IN
STYLE DESIGNATORSOLID, EXTERNAL FLANGE ONE END
BODY INSIDE DIAMETER2.0000 INCHES NOMINAL IN
OVERALL LENGTH5.1562 INCHES NOMINAL IN
FLANGE OUTSIDE DIAMETER2.6250 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER2.5000 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-286 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
263BP13Interchangeable
interchangeable cross-reference
interchangeable
D165Interchangeable
interchangeable cross-reference
interchangeable
AC410Interchangeable
interchangeable cross-reference
interchangeable
R529PC83Interchangeable
interchangeable cross-reference
interchangeable
H3299831Interchangeable
interchangeable cross-reference
interchangeable
B104AInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is R529?
R529 is a SWITCH,PRESSURE-THERMOSTATIC.
What parts can replace R529?
There are 19 known substitutes for R529: 263BP13, D165, AC410 and 16 more. Substitute compatibility should be verified for your specific system.
What is the NSN for R529?
R529 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4320-00-627-2289. 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