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Technical Data Sheet
PartsTable / COMPONENT / 21-100049
21-100049 ✓ 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 ASSY,JEWEL is a the manufacturer industrial component. Key specifications include general_characteristics_item_description: BRASS OR ALUMINUM,0.1567 MIN 0.1572 MAX IN DIA,0.146 IN MIN 0.166 IN MAX LG 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 3120-01-100-9838, 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
21-100049
NSN: 3120-01-100-9838
FSC: 3120
CAGE: 57323 — TRANS-CAL INDUSTRIES, INC (USA)
SPECIFICATIONS
general_characteristics_item_descriptionBRASS OR ALUMINUM,0.1567 MIN 0.1572 MAX IN DIA,0.146 IN MIN 0.166 IN MAX LG IN
NSN3120-01-100-9838
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 21-100049 · 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
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: BRASS OR ALUMINUM,0.1567 MIN 0.1572 MAX IN DIA,0.146 IN MIN 0.166 IN MAX LG IN
TECHNICAL CHARACTERISTICS (FLIS)
GENERAL CHARACTERISTICS ITEM DESCRIPTIONBRASS OR ALUMINUM,0.1567 MIN 0.1572 MAX IN DIA,0.146 IN MIN 0.166 IN MAX LG IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
215301Interchangeable
interchangeable cross-reference
interchangeable
43728Interchangeable
interchangeable cross-reference
interchangeable
9T35Y4927Interchangeable
interchangeable cross-reference
interchangeable
F1G69Interchangeable
interchangeable cross-reference
interchangeable
144-67Interchangeable
interchangeable cross-reference
interchangeable
100049Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 21-100049?
21-100049 is a BEARING ASSY,JEWEL.
What parts can replace 21-100049?
There are 13 known substitutes for 21-100049: 215301, 43728, 9T35Y4927 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 21-100049?
21-100049 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-01-100-9838. 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