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Technical Data Sheet
PartsTable / COMPONENT / 1620AC1-035
1620AC1-035 ✓ 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 BUSHING,SLEEVE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4130 OVERALL, corner_shape: ROUND INSIDE RIGHT CORNER, flange_width: 0.1220 INCHES MINIMUM AND 0.1230 INCHES MAXIMUM IN, overall_length: 0.7350 INCHES MINIMUM AND 0.7400 INCHES MAXIMUM IN, surface_finish: 32.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY, style_designator: SOLID, EXTERNAL FLANGE ONE END. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-445-8464, 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
1620AC1-035
NSN: 3120-00-445-8464
FSC: 3120
CAGE: 81996 — US ARMY AVIATION AND MISSILE COMMAND (USA)
SPECIFICATIONS
materialSTEEL COMP 4130 OVERALL
corner_shapeROUND INSIDE RIGHT CORNER
flange_width0.1220 INCHES MINIMUM AND 0.1230 INCHES MAXIMUM IN
overall_length0.7350 INCHES MINIMUM AND 0.7400 INCHES MAXIMUM IN
surface_finish32.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY
style_designatorSOLID, EXTERNAL FLANGE ONE END
surface_treatmentCADMIUM OVERALL
body_inside_diameter0.6255 INCHES MINIMUM AND 0.6265 INCHES MAXIMUM IN
body_outside_diameter0.6880 INCHES MINIMUM AND 0.6885 INCHES MAXIMUM IN
flange_outside_diameter1.1250 INCHES NOMINAL IN
material_document_and_classificationMIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN3120-00-445-8464
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 1620AC1-035 · 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
•
SURFACE FINISH: 32.0 MICROINCHES LEFT END SURFACE OF BODY AND FLANGE
•
CORNER SHAPE: SQUARE LEFT FLANGE OUTSIDE RIGHT CORNER
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
BODY INSIDE DIAMETER: 0.6255 INCHES MINIMUM AND 0.6265 INCHES MAXIMUM IN
•
FLANGE WIDTH: 0.1220 INCHES MINIMUM AND 0.1230 INCHES MAXIMUM IN
•
FLANGE OUTSIDE DIAMETER: 1.1250 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE FINISH32.0 MICROINCHES LEFT END SURFACE OF BODY AND FLANGE
CORNER SHAPESQUARE LEFT FLANGE OUTSIDE RIGHT CORNER
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
BODY INSIDE DIAMETER0.6255 INCHES MINIMUM AND 0.6265 INCHES MAXIMUM IN
CORNER SHAPESQUARE INSIDE LEFT CORNER
FLANGE WIDTH0.1220 INCHES MINIMUM AND 0.1230 INCHES MAXIMUM IN
FLANGE OUTSIDE DIAMETER1.1250 INCHES NOMINAL IN
OVERALL LENGTH0.7350 INCHES MINIMUM AND 0.7400 INCHES MAXIMUM IN
BODY OUTSIDE DIAMETER0.6880 INCHES MINIMUM AND 0.6885 INCHES MAXIMUM IN
SURFACE FINISH125.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF FLANGE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
55165Interchangeable
interchangeable cross-reference
interchangeable
UU-P-546Interchangeable
interchangeable cross-reference
interchangeable
A-A-3102 TY2STB$STCInterchangeable
interchangeable cross-reference
interchangeable
A-A-3102Interchangeable
interchangeable cross-reference
interchangeable
455165SK9Interchangeable
interchangeable cross-reference
interchangeable
2H3851Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1620AC1-035?
1620AC1-035 is a BUSHING,SLEEVE.
What parts can replace 1620AC1-035?
There are 21 known substitutes for 1620AC1-035: 55165, UU-P-546, A-A-3102 TY2STB$STC and 18 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1620AC1-035?
1620AC1-035 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-445-8464. 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