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502576 ✓ 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,PISTON is a the manufacturer industrial component. Key specifications include material: IRON OVERALL, ring_style: CONCENTRIC, joint_style: STEP JOINT, overall_width: 0.1355 INCHES NOMINAL IN, radial_wall_thickness: 0.1430 INCHES MINIMUM AND 0.1580 INCHES MAXIMUM IN, standard_bore_diameter: 3.812 INCHES 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 4310-00-142-0754, 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
502576
NSN: 4310-00-142-0754
FSC: 4310
CAGE: 82722 — WESTINGHOUSE AIR BRAKE TECHNOLOGIES CORP DBA WESTINGHOUSE AIR BRAKE TECHNOLOGIES CORP (USA)
SPECIFICATIONS
materialIRON OVERALL
ring_styleCONCENTRIC
joint_styleSTEP JOINT
overall_width0.1355 INCHES NOMINAL IN
radial_wall_thickness0.1430 INCHES MINIMUM AND 0.1580 INCHES MAXIMUM IN
standard_bore_diameter3.812 INCHES IN
cross-sectional_shape_stylePLAIN RECTANGULAR, STRAIGHT FACE
NSN4310-00-142-0754
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RING,PISTON TITLE COMPONENT PN 502576 MFR RING,PISTON
KEY FEATURES
•
MATERIAL: IRON OVERALL
•
RADIAL WALL THICKNESS: 0.1430 INCHES MINIMUM AND 0.1580 INCHES MAXIMUM IN
•
RING STYLE: CONCENTRIC
•
STANDARD BORE DIAMETER: 3.812 INCHES IN
•
CROSS-SECTIONAL SHAPE STYLE: PLAIN RECTANGULAR, STRAIGHT FACE
•
JOINT STYLE: STEP JOINT
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALIRON OVERALL
OVERALL WIDTH0.1355 INCHES NOMINAL IN
RADIAL WALL THICKNESS0.1430 INCHES MINIMUM AND 0.1580 INCHES MAXIMUM IN
RING STYLECONCENTRIC
STANDARD BORE DIAMETER3.812 INCHES IN
CROSS-SECTIONAL SHAPE STYLEPLAIN RECTANGULAR, STRAIGHT FACE
JOINT STYLESTEP JOINT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
1-695Interchangeable
interchangeable cross-reference
interchangeable
NAV130-77Interchangeable
interchangeable cross-reference
interchangeable
NAV133-47Interchangeable
interchangeable cross-reference
interchangeable
152675Interchangeable
interchangeable cross-reference
interchangeable
50276Interchangeable
interchangeable cross-reference
interchangeable
7910387Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 502576?
502576 is a RING,PISTON.
What parts can replace 502576?
There are 13 known substitutes for 502576: 1-695, NAV130-77, NAV133-47 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 502576?
502576 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4310-00-142-0754. 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