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Technical Data Sheet
PartsTable / COMPONENT / 774042
774042 ✓ 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 material: COPPER ALLOY OVERALL, slot_width: 0.2470 INCHES NOMINAL FIRST IN, slot_length: 0.0778 INCHES NOMINAL FIRST IN, corner_shape: SQUARE ALL CORNERS, hole_diameter: 0.2500 INCHES NOMINAL FIRST IN, overall_length: 1.8125 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 3120-00-322-0154, 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
774042
NSN: 3120-00-322-0154
FSC: 3120
CAGE: 0BR59 — SIEMENS GOVERNMENT TECHNOLOGIES, INC. DBA SGT DRESSER-RAND DIV SGT DRESSER-RAND (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
slot_width0.2470 INCHES NOMINAL FIRST IN
slot_length0.0778 INCHES NOMINAL FIRST IN
corner_shapeSQUARE ALL CORNERS
hole_diameter0.2500 INCHES NOMINAL FIRST IN
overall_length1.8125 INCHES NOMINAL IN
style_designatorSOLID, PLAIN, NO OUTSIDE FLANGES
body_inside_diameter0.4690 INCHES MINIMUM AND 0.4700 INCHES MAXIMUM IN
body_outside_diameter0.6255 INCHES MINIMUM AND 0.6260 INCHES MAXIMUM IN
material_document_and_classificationQQ-C-390 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
antirotation/lubrication_type_and_quantity1 HOLE AND 2 SLOT
NSN3120-00-322-0154
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 774042 · 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
•
HOLE DIAMETER: 0.2500 INCHES NOMINAL FIRST IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-C-390 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
ANTIROTATION/LUBRICATION TYPE AND QUANTITY: 1 HOLE AND 2 SLOT
•
SLOT LENGTH: 0.0778 INCHES NOMINAL FIRST IN
•
MATERIAL: COPPER ALLOY OVERALL
•
BODY INSIDE DIAMETER: 0.4690 INCHES MINIMUM AND 0.4700 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORSOLID, PLAIN, NO OUTSIDE FLANGES
HOLE DIAMETER0.2500 INCHES NOMINAL FIRST IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-C-390 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
OVERALL LENGTH1.8125 INCHES NOMINAL IN
ANTIROTATION/LUBRICATION TYPE AND QUANTITY1 HOLE AND 2 SLOT
SLOT LENGTH0.0778 INCHES NOMINAL FIRST IN
MATERIALCOPPER ALLOY OVERALL
BODY INSIDE DIAMETER0.4690 INCHES MINIMUM AND 0.4700 INCHES MAXIMUM IN
SLOT WIDTH0.2470 INCHES NOMINAL FIRST IN
BODY OUTSIDE DIAMETER0.6255 INCHES MINIMUM AND 0.6260 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
R20394Interchangeable
interchangeable cross-reference
interchangeable
GPW9378Interchangeable
interchangeable cross-reference
interchangeable
700106Interchangeable
interchangeable cross-reference
interchangeable
12A3429-1Interchangeable
interchangeable cross-reference
interchangeable
A1046Interchangeable
interchangeable cross-reference
interchangeable
1507422REVBInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 774042?
774042 is a BEARING,SLEEVE.
What parts can replace 774042?
There are 13 known substitutes for 774042: R20394, GPW9378, 700106 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 774042?
774042 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-322-0154. 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