PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 21050-2E
21050-2E ✓ 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 PUSH BUTTON,BEARING BLOCK is a the manufacturer industrial component. Key specifications include general_characteristics_item_description: PLASTIC,4 HOLES 0.187 DIA 0.038 DEEP,8 HOLES 0.125 DIA,5.830 IN. LG,1.250 IN.

W,0.310 THK 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 3120-01-100-4961, 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
21050-2E
NSN: 3120-01-100-4961
FSC: 3120
CAGE: 30377 — SMITHS AEROSPACE, INC., ELECTRONIC SYSTEMS-GRAND RAPIDS (USA)
SPECIFICATIONS
general_characteristics_item_descriptionPLASTIC,4 HOLES 0.187 DIA 0.038 DEEP,8 HOLES 0.125 DIA,5.830 IN. LG,1.250 IN. W,0.310 THK IN
NSN3120-01-100-4961
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 21050-2E · 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: PLASTIC,4 HOLES 0.187 DIA 0.038 DEEP,8 HOLES 0.125 DIA,5.830 IN. LG,1.250 IN. W,0.310 THK IN
TECHNICAL CHARACTERISTICS (FLIS)
GENERAL CHARACTERISTICS ITEM DESCRIPTIONPLASTIC,4 HOLES 0.187 DIA 0.038 DEEP,8 HOLES 0.125 DIA,5.830 IN. LG,1.250 IN. W,0.310 THK IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
3020215-001Interchangeable
interchangeable cross-reference
interchangeable
2-10502Interchangeable
interchangeable cross-reference
interchangeable
VS48F10-8Interchangeable
interchangeable cross-reference
interchangeable
CA600023Interchangeable
interchangeable cross-reference
interchangeable
210502 000011Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 21050-2E?
21050-2E is a PUSH BUTTON,BEARING BLOCK.
What parts can replace 21050-2E?
There are 5 known substitutes for 21050-2E: 3020215-001, 2-10502, VS48F10-8 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 21050-2E?
21050-2E is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-01-100-4961. 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