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Technical Data Sheet
PartsTable / COMPONENT / 54216B
54216B ✓ 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: DIAGONAL JOINT, overall_width: 0.1835 INCHES NOMINAL IN, radial_wall_thickness: 0.4250 INCHES MINIMUM AND 0.4400 INCHES MAXIMUM IN, standard_bore_diameter: 12.500 INCHES IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 2815-00-517-9835, 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
54216B
NSN: 2815-00-517-9835
FSC: 2815
CAGE: 7PZX0 — FAIRBANKS MORSE, LLC (USA)
SPECIFICATIONS
materialIRON OVERALL
ring_styleCONCENTRIC
joint_styleDIAGONAL JOINT
overall_width0.1835 INCHES NOMINAL IN
radial_wall_thickness0.4250 INCHES MINIMUM AND 0.4400 INCHES MAXIMUM IN
standard_bore_diameter12.500 INCHES IN
cross-sectional_shape_stylePLAIN RECTANGULAR, STRAIGHT FACE
NSN2815-00-517-9835
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RING,PISTON TITLE COMPONENT PN 54216B MFR RING,PISTON
KEY FEATURES
•
RADIAL WALL THICKNESS: 0.4250 INCHES MINIMUM AND 0.4400 INCHES MAXIMUM IN
•
STANDARD BORE DIAMETER: 12.500 INCHES IN
•
MATERIAL: IRON OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: PLAIN RECTANGULAR, STRAIGHT FACE
•
RING STYLE: CONCENTRIC
•
JOINT STYLE: DIAGONAL JOINT
TECHNICAL CHARACTERISTICS (FLIS)
RADIAL WALL THICKNESS0.4250 INCHES MINIMUM AND 0.4400 INCHES MAXIMUM IN
STANDARD BORE DIAMETER12.500 INCHES IN
MATERIALIRON OVERALL
CROSS-SECTIONAL SHAPE STYLEPLAIN RECTANGULAR, STRAIGHT FACE
OVERALL WIDTH0.1835 INCHES NOMINAL IN
RING STYLECONCENTRIC
JOINT STYLEDIAGONAL JOINT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
3240Interchangeable
interchangeable cross-reference
interchangeable
WWN351TYPEAInterchangeable
interchangeable cross-reference
interchangeable
A733S-264CFGInterchangeable
interchangeable cross-reference
interchangeable
ASTM-A733Interchangeable
interchangeable cross-reference
interchangeable
2397-AInterchangeable
interchangeable cross-reference
interchangeable
172-84Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 54216B?
54216B is a RING,PISTON.
What parts can replace 54216B?
There are 12 known substitutes for 54216B: 3240, WWN351TYPEA, A733S-264CFG and 9 more. Substitute compatibility should be verified for your specific system.
Is 54216B still available?
54216B is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026