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Technical Data Sheet
PartsTable / COMPONENT / SC 7/8
SC 7/8 ✓ 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 SC 7/8 is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3130-01-109-1431, 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
SC 7/8
NSN: 3130-01-109-1431
FSC: 3130
CAGE: 71956 — RELIANCE ELECTRIC COMPANY DBA RELIANCE & DODGE BRANDS (USA)
SPECIFICATIONS
Part NumberSC 7/8
NSN3130-01-109-1431
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: SC 7/8 · 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
•
SEAL LOCATION: BOTH ENDS
•
LUBRICATION FITTING ANGLE FROM HORIZONTAL CENTERLINE: 45.0 DEGREES NOMINAL
•
SEAL TYPE: CONTACT
•
ROLLING ELEMENT GROOVE QUANTITY: 1
•
HOUSING WIDTH: 5.5000 INCHES NOMINAL IN
•
BASE THICKNESS: 0.7500 INCHES NOMINAL IN
•
STYLE DESIGNATOR: PILLOW BLOCK, SOLID
•
MATERIAL: RUBBER SYNTHETIC AND STEEL SEAL
TECHNICAL CHARACTERISTICS (FLIS)
SEAL LOCATIONBOTH ENDS
LUBRICATION FITTING ANGLE FROM HORIZONTAL CENTERLINE45.0 DEGREES NOMINAL
SEAL TYPECONTACT
ROLLING ELEMENT GROOVE QUANTITY1
HOUSING WIDTH5.5000 INCHES NOMINAL IN
BASE THICKNESS0.7500 INCHES NOMINAL IN
STYLE DESIGNATORPILLOW BLOCK, SOLID
MATERIALRUBBER SYNTHETIC AND STEEL SEAL
HEIGHT FROM BOTTOM OF BASE TO BORE CENTERLINE1.4375 INCHES NOMINAL IN
LOAD CAPABILITY TYPERADIAL AND THRUST
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
331-00042M0250KInterchangeable
interchangeable cross-reference
interchangeable
331-000-U2M0-250KInterchangeable
interchangeable cross-reference
interchangeable
3068420-1Interchangeable
interchangeable cross-reference
interchangeable
123804Interchangeable
interchangeable cross-reference
interchangeable
R1041-1AInterchangeable
interchangeable cross-reference
interchangeable
5M454-1A10Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SC 7/8?
SC 7/8 is a SC 7/8.
What parts can replace SC 7/8?
There are 17 known substitutes for SC 7/8: 331-00042M0250K, 331-000-U2M0-250K, 3068420-1 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for SC 7/8?
SC 7/8 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3130-01-109-1431. 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