PartsTable
Technical Data Sheet
PartsTable / MRO / 21-027
21-027 ✓ Verified by PartsTable
Clementoni · MRO · MRO_GENERAL
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

RESISTOR,VARIABLE,WIRE WOUND,NON. Key specifications include material: ALUMINUM ALLOY, body_width: 3.000 INCHES MAXIMUM IN, head_style: PAN, body_height: 4.100 INCHES MAXIMUM IN, body_length: 5.800 INCHES MAXIMUM IN, head_height: 0.070 INCHES MINIMUM AND 0.080 INCHES MAXIMUM 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 3120-00-432-4059, 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
MRO→ MRO_GENERAL→ 21-027
NSN: 3120-00-432-4059
FSC: 3120
CAGE: 54089 — DRS C3 & AVIATION COMPANY DBA DRS DATA & IMAGING SYSTEMS (USA)
SPECIFICATIONS
materialALUMINUM ALLOY
body_width3.000 INCHES MAXIMUM IN
head_stylePAN
body_height4.100 INCHES MAXIMUM IN
body_length5.800 INCHES MAXIMUM IN
head_height0.070 INCHES MINIMUM AND 0.080 INCHES MAXIMUM IN
corner_shapeSQUARE INSIDE LEFT CORNER
thread_class2A A
head_diameter0.205 INCHES MINIMUM AND 0.219 INCHES MAXIMUM IN
thread_length0.540 INCHES MINIMUM AND 0.620 INCHES MAXIMUM IN
inclosure_typeFULLY INCLOSED
overall_length0.378 INCHES NOMINAL IN
NSN3120-00-432-4059
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 21-027 · Clementoni ⚠ 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
•
CORNER SHAPE: SQUARE INSIDE RIGHT CORNER
•
SPHERICAL BODY DIAMETER: 0.9600 INCHES NOMINAL IN
•
BODY INSIDE DIAMETER: 0.6250 INCHES MINIMUM AND 0.6252 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
CORNER SHAPESQUARE INSIDE RIGHT CORNER
SPHERICAL BODY DIAMETER0.9600 INCHES NOMINAL IN
OVERALL LENGTH0.5000 INCHES NOMINAL IN
CORNER SHAPESQUARE INSIDE LEFT CORNER
BODY INSIDE DIAMETER0.6250 INCHES MINIMUM AND 0.6252 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
21027Interchangeable
interchangeable cross-reference
interchangeable
6121Interchangeable
interchangeable cross-reference
interchangeable
526032Interchangeable
interchangeable cross-reference
interchangeable
04222866Interchangeable
interchangeable cross-reference
interchangeable
61263Interchangeable
interchangeable cross-reference
interchangeable
H006114Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy 21-027?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 21-027?
21-027 is a RESISTOR,VARIABLE,WIRE WOUND,NON manufactured by Clementoni. It is classified as a MRO (MRO_GENERAL).
What parts can replace 21-027?
There are 9 known substitutes for 21-027: 21027, 6121, 526032 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 21-027?
21-027 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-432-4059. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 21-027

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026