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Y3287 — REAMER,BACKING RING

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

Y3287: REAMER,BACKING RING.

The REAMER,BACKING RING is a the manufacturer industrial component. Key specifications include general_characteristics_item_description: 3.812 IN. LG O/A; 1.254 IN.

MIN TO 1.256 IN. MAX O/A DIA IN. This part is cataloged in the U.S.

Government catalog under NSN 3455-00-403-6078, 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
Y3287
NSN: 3455-00-403-6078
FSC: 3455 — Cutting Tools for Machine Tools
CAGE: 66042 — THOMAS C. WILSON, INC. DBA THOMAS C WILSON (USA)
SPECIFICATIONS
general_characteristics_item_description3.812 IN. LG O/A; 1.254 IN. MIN TO 1.256 IN. MAX O/A DIA IN
NSN3455-00-403-6078
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available REAMER,BACKING RING TITLE COMPONENT PN Y3287 MFR REAMER,BACKING RING
KEY FEATURES
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: 3.812 IN. LG O/A; 1.254 IN. MIN TO 1.256 IN. MAX O/A DIA IN
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTION3.812 IN. LG O/A; 1.254 IN. MIN TO 1.256 IN. MAX O/A DIA IN
SUBSTITUTES & CROSS-REFERENCES 1
73287Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is Y3287?
Y3287 is a REAMER,BACKING RING.
What parts can replace Y3287?
There is 1 known substitute for Y3287: 73287. Substitute compatibility should be verified for your specific system.
What is the NSN for Y3287?
Y3287 is cataloged in the U.S. Government catalog under NSN 3455-00-403-6078. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.