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Technical Data Sheet
PartsTable / COMPONENT / 31A7942
31A7942 ✓ 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 BRUSH,ELECTRICAL CONTACT is a the manufacturer industrial component. Key specifications include material: MAGNESIUM OVERALL, corner_shape: SQUARE ALL CORNERS, overall_length: 0.7240 INCHES NOMINAL IN, style_designator: SOLID, PLAIN, NO OUTSIDE FLANGES, body_inside_diameter: 1.3430 INCHES NOMINAL IN, body_outside_diameter: 1.4680 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 3120-00-293-6337, 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
31A7942
NSN: 3120-00-293-6337
FSC: 3120
CAGE: 26916 — NORTHROP GRUMMAN SYSTEMS CORPORATION DBA NORTHROP GRUMMAN SYSTEMS CORP DIV MULTIPLE (USA)
SPECIFICATIONS
materialMAGNESIUM OVERALL
corner_shapeSQUARE ALL CORNERS
overall_length0.7240 INCHES NOMINAL IN
style_designatorSOLID, PLAIN, NO OUTSIDE FLANGES
body_inside_diameter1.3430 INCHES NOMINAL IN
body_outside_diameter1.4680 INCHES NOMINAL IN
NSN3120-00-293-6337
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 31A7942 · 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
•
STYLE DESIGNATOR: SOLID, PLAIN, NO OUTSIDE FLANGES
•
CORNER SHAPE: SQUARE ALL CORNERS
•
MATERIAL: MAGNESIUM OVERALL
•
BODY INSIDE DIAMETER: 1.3430 INCHES NOMINAL IN
•
BODY OUTSIDE DIAMETER: 1.4680 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORSOLID, PLAIN, NO OUTSIDE FLANGES
CORNER SHAPESQUARE ALL CORNERS
MATERIALMAGNESIUM OVERALL
BODY INSIDE DIAMETER1.3430 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER1.4680 INCHES NOMINAL IN
OVERALL LENGTH0.7240 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
412-3292Interchangeable
interchangeable cross-reference
interchangeable
8510567-14Interchangeable
interchangeable cross-reference
interchangeable
800-1011Interchangeable
interchangeable cross-reference
interchangeable
21885Interchangeable
interchangeable cross-reference
interchangeable
DD622Interchangeable
interchangeable cross-reference
interchangeable
D6-22Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 31A7942?
31A7942 is a BRUSH,ELECTRICAL CONTACT.
What parts can replace 31A7942?
There are 14 known substitutes for 31A7942: 412-3292, 8510567-14, 800-1011 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 31A7942?
31A7942 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-293-6337. 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