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Technical Data Sheet
PartsTable / COMPONENT / 21329
21329 ✓ 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

GRIP ASSEMBLY,CONTROLLER,AIRCRAF. Key specifications include end_item_identification: M203 40MM MM, part_name_assigned_by_controlling_agency: SPRING. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-496-6595, 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
21329
NSN: 3120-00-496-6595
FSC: 3120
CAGE: 35301 — DRESSER INDUSTRIES INC LEROI DIV (USA)
SPECIFICATIONS
end_item_identificationM203 40MM MM
part_name_assigned_by_controlling_agencySPRING
NSN3120-00-496-6595
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 21329 · 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
•
MATERIAL: COPPER ALLOY OVERALL
•
STYLE DESIGNATOR: SOLID, PLAIN, NO OUTSIDE FLANGES
•
CORNER SHAPE: SQUARE ALL CORNERS
•
BODY OUTSIDE DIAMETER: 1.7530 INCHES MINIMUM AND 1.7540 INCHES MAXIMUM IN
•
BODY INSIDE DIAMETER: 1.4970 INCHES MINIMUM AND 1.4980 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALCOPPER ALLOY OVERALL
STYLE DESIGNATORSOLID, PLAIN, NO OUTSIDE FLANGES
OVERALL LENGTH1.4375 INCHES NOMINAL IN
CORNER SHAPESQUARE ALL CORNERS
BODY OUTSIDE DIAMETER1.7530 INCHES MINIMUM AND 1.7540 INCHES MAXIMUM IN
BODY INSIDE DIAMETER1.4970 INCHES MINIMUM AND 1.4980 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
21329Interchangeable
interchangeable cross-reference
interchangeable
S6140-61105Interchangeable
interchangeable cross-reference
interchangeable
5101-78Interchangeable
interchangeable cross-reference
interchangeable
232-0030-00Interchangeable
interchangeable cross-reference
interchangeable
21317-1018-6Interchangeable
interchangeable cross-reference
interchangeable
21329-21Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 21329?
21329 is a GRIP ASSEMBLY,CONTROLLER,AIRCRAF.
What parts can replace 21329?
There are 20 known substitutes for 21329: 21329, S6140-61105, 5101-78 and 17 more. Substitute compatibility should be verified for your specific system.
Is 21329 still available?
21329 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026