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Technical Data Sheet
PartsTable / COMPONENT / 3120-21-813-9088
3120-21-813-9088 ✓ 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, corner_shape: SQUARE OUTSIDE LEFT CORNER, flange_width: 0.1540 INCHES MINIMUM AND 0.1580 INCHES MAXIMUM IN, overall_length: 0.3280 INCHES MINIMUM AND 0.3590 INCHES MAXIMUM IN, style_designator: SOLID, EXTERNAL FLANGE ONE END, body_inside_diameter: 0.5020 INCHES MINIMUM AND 0.5040 INCHES MAXIMUM 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 3120-00-900-6004, 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
3120-21-813-9088
NSN: 3120-00-900-6004
FSC: 3120
CAGE: 99995 — NATO STOCK NUMBER ASSIGNED BY ANOTHER NATION
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
corner_shapeSQUARE OUTSIDE LEFT CORNER
flange_width0.1540 INCHES MINIMUM AND 0.1580 INCHES MAXIMUM IN
overall_length0.3280 INCHES MINIMUM AND 0.3590 INCHES MAXIMUM IN
style_designatorSOLID, EXTERNAL FLANGE ONE END
body_inside_diameter0.5020 INCHES MINIMUM AND 0.5040 INCHES MAXIMUM IN
body_outside_diameter0.7500 INCHES MINIMUM AND 0.7550 INCHES MAXIMUM IN
flange_outside_diameter0.9950 INCHES MINIMUM AND 1.0050 INCHES MAXIMUM IN
nondefinitive_spec/std_data1 TYPE AND A COMPOSITION
material_document_and_classificationMIL-B-5697,TY 1,COMP A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN3120-00-900-6004
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 3120-21-813-9088 · 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
•
CORNER SHAPE: SQUARE OUTSIDE RIGHT CORNER
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-B-5697,TY 1,COMP A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
MATERIAL: COPPER ALLOY OVERALL
•
STYLE DESIGNATOR: SOLID, EXTERNAL FLANGE ONE END
TECHNICAL CHARACTERISTICS (FLIS)
CORNER SHAPESQUARE OUTSIDE RIGHT CORNER
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-B-5697,TY 1,COMP A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALCOPPER ALLOY OVERALL
STYLE DESIGNATORSOLID, EXTERNAL FLANGE ONE END
CORNER SHAPESQUARE LEFT FLANGE BODY CORNER
MATERIALOIL LUBRICATING LUBRICATION
CORNER SHAPESQUARE INSIDE RIGHT CORNER
CORNER SHAPESQUARE INSIDE LEFT CORNER
FLANGE OUTSIDE DIAMETER0.9950 INCHES MINIMUM AND 1.0050 INCHES MAXIMUM IN
FLANGE WIDTH0.1540 INCHES MINIMUM AND 0.1580 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
6232Interchangeable
interchangeable cross-reference
interchangeable
AN505-8-20Interchangeable
interchangeable cross-reference
interchangeable
E2343Interchangeable
interchangeable cross-reference
interchangeable
KG5706Interchangeable
interchangeable cross-reference
interchangeable
8910356Interchangeable
interchangeable cross-reference
interchangeable
AN3066Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3120-21-813-9088?
3120-21-813-9088 is a BEARING,SLEEVE.
What parts can replace 3120-21-813-9088?
There are 19 known substitutes for 3120-21-813-9088: 6232, AN505-8-20, E2343 and 16 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 3120-21-813-9088?
3120-21-813-9088 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-900-6004. This indicates validated use in U.S. government and defense supply chains.
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PartsTable Design LLC · partstable.com
Last verified: July 2026