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Technical Data Sheet
PartsTable / COMPONENT / KMW133720A
KMW133720A ✓ 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 CIRCUIT CARD ASSEMBLY is a the manufacturer industrial component. Key specifications include material: LEATHER CATTLEHIDE OVERALL, outside_diameter: 0.452 INCHES NOMINAL IN, style_designator: CIRCULAR, aperture_diameter: 0.227 INCHES MINIMUM AND 0.241 INCHES MAXIMUM IN, cross-sectional_thickness: 0.084 INCHES MINIMUM AND 0.104 INCHES MAXIMUM IN, cross-sectional_shape_style: SOLID SINGLE OR COMPOSITION. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-01-548-3779, 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
KMW133720A
NSN: 3120-01-548-3779
FSC: 3120
CAGE: 07309 — BIRD-JOHNSON PROPELLER COMPANY, LLC (USA)
SPECIFICATIONS
materialLEATHER CATTLEHIDE OVERALL
outside_diameter0.452 INCHES NOMINAL IN
special_featuresCAPACITORS 16,DIODES 2,EJECTOR 1,INIEGRATED CIRCUITS 7,JACKS 7,PIN 1,PRINTED WIRING BOARD 1,RESISTORS 26,TRANSISTORS 4,TRANSISTOR MOUNTING PADS 4
style_designatorCIRCULAR
aperture_diameter0.227 INCHES MINIMUM AND 0.241 INCHES MAXIMUM IN
cross-sectional_thickness0.084 INCHES MINIMUM AND 0.104 INCHES MAXIMUM IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
material_document_and_classificationMIL-W-5521 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN3120-01-548-3779
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: KMW133720A · 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 10
133690Interchangeable
interchangeable cross-reference
interchangeable
2216LS-2Interchangeable
interchangeable cross-reference
interchangeable
B-FF-2Interchangeable
interchangeable cross-reference
interchangeable
1776-2Interchangeable
interchangeable cross-reference
interchangeable
133690 ITEM NO 8Interchangeable
interchangeable cross-reference
interchangeable
F024412Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is KMW133720A?
KMW133720A is a CIRCUIT CARD ASSEMBLY.
What parts can replace KMW133720A?
There are 10 known substitutes for KMW133720A: 133690, 2216LS-2, B-FF-2 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for KMW133720A?
KMW133720A is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-01-548-3779. 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