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308699 ✓ 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 HOUSING,BEARING UNIT is a the manufacturer industrial component. Key specifications include bore_diameter: 0.770 INCHES NOMINAL IN, overall_height: 0.738 INCHES NOMINAL IN, style_designator: POSITIVE TYPE-STRAIGHT BORE, first_step_length: 0.090 INCHES NOMINAL IN, rotation_direction: CLOCKWISE AND COUNTERCLOCKWISE, second_step_length: 0.375 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 3130-01-680-8057, 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
308699
NSN: 3130-01-680-8057
FSC: 3130
CAGE: 1PWP4 — HAMILTON JET, INC. (USA)
SPECIFICATIONS
bore_diameter0.770 INCHES NOMINAL IN
overall_height0.738 INCHES NOMINAL IN
style_designatorPOSITIVE TYPE-STRAIGHT BORE
first_step_length0.090 INCHES NOMINAL IN
rotation_directionCLOCKWISE AND COUNTERCLOCKWISE
second_step_length0.375 INCHES NOMINAL IN
first_step_diameter1.525 INCHES NOMINAL IN
starting_load_range+95.0 TO 265.0 POUNDS LBS
second_step_diameter1.772 INCHES NOMINAL IN
minimum_rotation_in_deg2.0
distance_from_end_to_nearest_step0.185 INCHES NOMINAL IN
spring_and_ball_retainer_inside_diameter0.870 INCHES NOMINAL IN
NSN3130-01-680-8057
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 308699 · 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 4
RC37AInterchangeable
interchangeable cross-reference
interchangeable
R600I3370Interchangeable
interchangeable cross-reference
interchangeable
RC37Interchangeable
interchangeable cross-reference
interchangeable
306809Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 308699?
308699 is a HOUSING,BEARING UNIT.
What parts can replace 308699?
There are 4 known substitutes for 308699: RC37A, R600I3370, RC37 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 308699?
308699 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3130-01-680-8057. 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