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Technical Data Sheet
PartsTable / COMPONENT / MB2731AL
MB2731AL ✓ 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 FILTER ELEMENT,FLUID is a the manufacturer industrial component. Key specifications include color: BLACK, material: PLASTIC POLYAMIDE NYLON, body_width: 3.875 INCHES NOMINAL IN, drive_type: DIRECT, body_height: 5.250 INCHES NOMINAL IN, body_length: 3.875 INCHES NOMINAL 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 3120-01-058-5326, 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
MB2731AL
NSN: 3120-01-058-5326
FSC: 3120
CAGE: 31033 — TRW INC TRW INTL TRADE GOVERNMENT SALES DEPT (USA)
SPECIFICATIONS
colorBLACK
materialPLASTIC POLYAMIDE NYLON
quantity1
body_width3.875 INCHES NOMINAL IN
drive_typeDIRECT
body_height5.250 INCHES NOMINAL IN
body_length3.875 INCHES NOMINAL IN
shock_mountNOT PROVIDED
closure_typeLOCKING SCREW CAP
overall_width8.000 INCHES NOMINAL IN
terminal_typeSCREW
inclosure_typeFULLY INCLOSED
NSN3120-01-058-5326
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: MB2731AL · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
3141A1Interchangeable
interchangeable cross-reference
interchangeable
60305Interchangeable
interchangeable cross-reference
interchangeable
1118782Interchangeable
interchangeable cross-reference
interchangeable
2141Interchangeable
interchangeable cross-reference
interchangeable
3667Interchangeable
interchangeable cross-reference
interchangeable
22-2Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MB2731AL?
MB2731AL is a FILTER ELEMENT,FLUID.
What parts can replace MB2731AL?
There are 14 known substitutes for MB2731AL: 3141A1, 60305, 1118782 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MB2731AL?
MB2731AL is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-01-058-5326. 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