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Technical Data Sheet
PartsTable / MRO / 21-407
21-407 ✓ 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

The DEHYDRATOR ASSY is a Clementoni industrial component. Key specifications include material: STEEL, slot_width: 0.1880 INCHES NOMINAL FIRST IN, slot_length: 2.6250 INCHES NOMINAL FIRST IN, corner_shape: ROUND ALL CORNERS, hole_diameter: 0.2500 INCHES NOMINAL FIRST IN, overall_length: 1.5000 INCHES NOMINAL 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 3120-00-338-7249, 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→ 21-407
NSN: 3120-00-338-7249
FSC: 3120
CAGE: 35301 — DRESSER INDUSTRIES INC LEROI DIV (USA)
SPECIFICATIONS
materialSTEEL
slot_width0.1880 INCHES NOMINAL FIRST IN
slot_length2.6250 INCHES NOMINAL FIRST IN
corner_shapeROUND ALL CORNERS
hole_diameter0.2500 INCHES NOMINAL FIRST IN
overall_length1.5000 INCHES NOMINAL IN
style_designatorHALF SLEEVE, PLAIN, NO OUTSIDE FLANGES
locking_lug_width0.1750 INCHES MINIMUM AND 0.1800 INCHES MAXIMUM IN
locking_lug_height0.0450 INCHES MINIMUM AND 0.0550 INCHES MAXIMUM IN
locking_lug_length0.2190 INCHES NOMINAL IN
body_inside_diameter2.5553 INCHES NOMINAL IN
body_outside_diameter2.6250 INCHES NOMINAL IN
NSN3120-00-338-7249
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 21-407 · 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
•
SLOT LENGTH: 2.6250 INCHES NOMINAL FIRST IN
•
LUBRICANT ACCOMMODATION STYLE: GROOVED SPIRAL CIRCULAR
•
DISTANCE FROM LUG END TO END OF BEARING: 0.3480 INCHES NOMINAL IN
•
HOLE DIAMETER: 0.2500 INCHES NOMINAL FIRST IN
•
MATERIAL: TIN ALLOY INNER LAYER
•
ANTIROTATION/LUBRICATION TYPE AND QUANTITY: 1 HOLE AND 1 SLOT
•
LOCKING LUG HEIGHT: 0.0450 INCHES MINIMUM AND 0.0550 INCHES MAXIMUM IN
•
LOCKING LUG WIDTH: 0.1750 INCHES MINIMUM AND 0.1800 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
SLOT LENGTH2.6250 INCHES NOMINAL FIRST IN
LUBRICANT ACCOMMODATION STYLEGROOVED SPIRAL CIRCULAR
DISTANCE FROM LUG END TO END OF BEARING0.3480 INCHES NOMINAL IN
HOLE DIAMETER0.2500 INCHES NOMINAL FIRST IN
MATERIALTIN ALLOY INNER LAYER
ANTIROTATION/LUBRICATION TYPE AND QUANTITY1 HOLE AND 1 SLOT
LOCKING LUG HEIGHT0.0450 INCHES MINIMUM AND 0.0550 INCHES MAXIMUM IN
LOCKING LUG WIDTH0.1750 INCHES MINIMUM AND 0.1800 INCHES MAXIMUM IN
BODY INSIDE DIAMETER2.5553 INCHES NOMINAL IN
CORNER SHAPEROUND ALL CORNERS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
21407Interchangeable
interchangeable cross-reference
interchangeable
10117498Interchangeable
interchangeable cross-reference
interchangeable
281102Interchangeable
interchangeable cross-reference
interchangeable
814-0003Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 21-407?
21-407 is a DEHYDRATOR ASSY manufactured by Clementoni. It is classified as a MRO (MRO_GENERAL).
What parts can replace 21-407?
There are 4 known substitutes for 21-407: 21407, 10117498, 281102 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 21-407?
21-407 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-338-7249. 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