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Technical Data Sheet
PartsTable / COMPONENT / 77078
77078 ✓ 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 BEARING,SLEEVE is a the manufacturer industrial component. Key specifications include part_name_assigned_by_controlling_agency: OPERATOR'S MANUAL,INTERNATIONAL,WASP AE DDL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-350-6462, 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
77078
NSN: 3120-00-350-6462
FSC: 3120
CAGE: 14892 — BENDIX CORP THE BRAKE AND STEERING DIV (USA)
SPECIFICATIONS
part_name_assigned_by_controlling_agencyOPERATOR'S MANUAL,INTERNATIONAL,WASP AE DDL
NSN3120-00-350-6462
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 77078 · 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: COPPER ALLOY INNER LAYER
•
CORNER SHAPE: SQUARE ALL CORNERS
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL0B013506 MIL SPEC ALL MATERIAL RESPONSES OVERALL
•
STYLE DESIGNATOR: SOLID, PLAIN, NO OUTSIDE FLANGES
•
BODY OUTSIDE DIAMETER: 1.8760 INCHES MINIMUM AND 1.8780 INCHES MAXIMUM IN
•
BODY INSIDE DIAMETER: 1.7450 INCHES MINIMUM AND 1.7470 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL LENGTH1.2300 INCHES MINIMUM AND 1.2500 INCHES MAXIMUM IN
MATERIALCOPPER ALLOY INNER LAYER
CORNER SHAPESQUARE ALL CORNERS
MATERIAL DOCUMENT AND CLASSIFICATIONMIL0B013506 MIL SPEC ALL MATERIAL RESPONSES OVERALL
STYLE DESIGNATORSOLID, PLAIN, NO OUTSIDE FLANGES
BODY OUTSIDE DIAMETER1.8760 INCHES MINIMUM AND 1.8780 INCHES MAXIMUM IN
BODY INSIDE DIAMETER1.7450 INCHES MINIMUM AND 1.7470 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
CAT11540Interchangeable
interchangeable cross-reference
interchangeable
11A1303Interchangeable
interchangeable cross-reference
interchangeable
3101-0009Interchangeable
interchangeable cross-reference
interchangeable
77078Interchangeable
interchangeable cross-reference
interchangeable
070012Interchangeable
interchangeable cross-reference
interchangeable
10A6573Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 77078?
77078 is a BEARING,SLEEVE.
What parts can replace 77078?
There are 6 known substitutes for 77078: CAT11540, 11A1303, 3101-0009 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 77078?
77078 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-350-6462. 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