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PartsTable / COMPONENT / B28-2326 PIECE 123
B28-2326 PIECE 123 ✓ Verified by PartsTable
— · BALL BEARING
WHAT YOU NEED TO KNOW
2RS = sealed for life, ZZ = shielded re-greaseable ABEC grade: higher = tighter tolerance
ABEC-1 standard, ABEC-7+ for precision spindles
PRODUCT OVERVIEW

The BUSHING,SLEEVE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 903 OVERALL, material_document_and_classification: QQ-C-390,ALLOY D5 FED SPEC SINGLE MATERIAL RESPONSE OVERALL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-01-211-5090, 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
B28-2326 PIECE 123
NSN: 3120-01-211-5090
FSC: 3120
CAGE: 63857 — CIRCOR NAVAL SOLUTIONS LLC DBA WARREN PUMPS (USA)
SPECIFICATIONS
materialCOPPER ALLOY 903 OVERALL
material_document_and_classificationQQ-C-390,ALLOY D5 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN3120-01-211-5090
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: B28-2326 PIECE 123 · OEM ⚠ VERIFY BEFORE ORDERING ABEC grade: higher = tighter tolerance = higher cost. ABEC-1 is standard, ABEC-7+ for precision spindles. Open, shielded (ZZ), and sealed (2RS) versions have different max RPM ratings ✓ BROKER TIP 2RS = sealed for life (no maintenance). ZZ = shielded, re-greaseable. Open = must lubricate on install. Common interchange: 6205-2RS = 6205-2RSR = 6205-DDU (same bearing, different suffix) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-C-390,ALLOY D5 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
MATERIAL: COPPER ALLOY 903 OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-C-390,ALLOY D5 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALCOPPER ALLOY 903 OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
5120PL1328604Interchangeable
interchangeable cross-reference
interchangeable
AA36B291Interchangeable
interchangeable cross-reference
interchangeable
B107.600Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B28-2326 PIECE 123?
B28-2326 PIECE 123 is a BUSHING,SLEEVE.
What parts can replace B28-2326 PIECE 123?
There are 3 known substitutes for B28-2326 PIECE 123: 5120PL1328604, AA36B291, B107.600. Substitute compatibility should be verified for your specific system.
What is the NSN for B28-2326 PIECE 123?
B28-2326 PIECE 123 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-01-211-5090. 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