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4450STD ✓ 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 SET,PISTON is a the manufacturer industrial component. Key specifications include standard_bore_diameter: 5.250 INCHES IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4310-00-871-2306, 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
4450STD
NSN: 4310-00-871-2306
FSC: 4310
CAGE: 49576 — QUINCY COMPRESSOR DIVISION OF COLTEC INDUSTRIES INC DBA QUINCY COMPRESSOR DIV QUINCY COMPRESSOR (USA)
SPECIFICATIONS
standard_bore_diameter5.250 INCHES IN
ring_set_component_partsCOMPRESSION RING,6987,49576,1,COMPRESSION RING,6988,49576,1,4310-00-467-3030,COMPRESSION RING SPRING,2,2815-00-363-4650,COMPRESSION RING,1,4310-00-273-0461,OIL CONTROL RING,1
piston_accommodation_quantity1
NSN4310-00-871-2306
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RING SET,PISTON TITLE COMPONENT PN 4450STD MFR RING SET,PISTON
KEY FEATURES
•
PISTON ACCOMMODATION QUANTITY: 1
•
STANDARD BORE DIAMETER: 5.250 INCHES IN
•
RING SET COMPONENT PARTS: COMPRESSION RING,6987,49576,1,COMPRESSION RING,6988,49576,1,4310-00-467-3030,COMPRESSION RING SPRING,2,2815-00-363-4650,COMPRESSION RING,1,4310-00-273-0461,OIL CONTROL RING,1
TECHNICAL CHARACTERISTICS (FLIS)
PISTON ACCOMMODATION QUANTITY1
STANDARD BORE DIAMETER5.250 INCHES IN
RING SET COMPONENT PARTSCOMPRESSION RING,6987,49576,1,COMPRESSION RING,6988,49576,1,4310-00-467-3030,COMPRESSION RING SPRING,2,2815-00-363-4650,COMPRESSION RING,1,4310-00-273-0461,OIL CONTROL RING,1
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
537343Interchangeable
interchangeable cross-reference
interchangeable
7595Interchangeable
interchangeable cross-reference
interchangeable
VIEWGRAPH MOUNT 521Interchangeable
interchangeable cross-reference
interchangeable
84155Interchangeable
interchangeable cross-reference
interchangeable
P7595Interchangeable
interchangeable cross-reference
interchangeable
323-5-8Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4450STD?
4450STD is a RING SET,PISTON.
What parts can replace 4450STD?
There are 15 known substitutes for 4450STD: 537343, 7595, VIEWGRAPH MOUNT 521 and 12 more. Substitute compatibility should be verified for your specific system.
Is 4450STD still available?
4450STD 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