PartsTable
Technical Data Sheet
21328 ✓ Verified by PartsTable
Esselte · 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

4-bay RAID-System for 3.5" SATA HDD; with USB 2.0, 1394a/b and eSATA interface. Key specifications include material: ALUMINUM ALLOY AND STEEL CORROSION RESISTING, body_shape: ROUND, scale_name: ANY ACCEPTABLE, design_type: DRY, scale_range: +0.0 TO 75.0 PRESSURE, color_coding: BLUE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-371-6391, 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 21328
NSN: 3120-00-371-6391
FSC: 3120
CAGE: 35301 — DRESSER INDUSTRIES INC LEROI DIV (USA)
SPECIFICATIONS
materialALUMINUM ALLOY AND STEEL CORROSION RESISTING
body_shapeROUND
scale_nameANY ACCEPTABLE
design_typeDRY
scale_range+0.0 TO 75.0 PRESSURE
color_codingBLUE
coolant_typeAIR
corner_shapeSQUARE ALL CORNERS
pointer_colorBLACK
actuation_typeANY ACCEPTABLE
inlet_locationOFFSET IN END SECTION OF BODY 1.500 IN. C OF INLET TO C OF BODY IN
muffler_designBAFFLE
NSN3120-00-371-6391
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 21328 · Esselte ⚠ 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
BODY OUTSIDE DIAMETER: 3.4415 INCHES MINIMUM AND 3.4425 INCHES MAXIMUM IN
LOCKING LUG HEIGHT: 0.0450 INCHES MINIMUM AND 0.0550 INCHES MAXIMUM IN
BODY INSIDE DIAMETER: 3.2480 INCHES MINIMUM AND 3.2490 INCHES MAXIMUM IN
MATERIAL: COPPER ALLOY INTERMEDIATE LAYER
LOCKING LUG LENGTH: 0.3125 INCHES NOMINAL IN
CORNER SHAPE: SQUARE ALL CORNERS
TECHNICAL CHARACTERISTICS (FLIS)
BODY OUTSIDE DIAMETER3.4415 INCHES MINIMUM AND 3.4425 INCHES MAXIMUM IN
LOCKING LUG HEIGHT0.0450 INCHES MINIMUM AND 0.0550 INCHES MAXIMUM IN
BODY INSIDE DIAMETER3.2480 INCHES MINIMUM AND 3.2490 INCHES MAXIMUM IN
MATERIALCOPPER ALLOY INTERMEDIATE LAYER
LOCKING LUG LENGTH0.3125 INCHES NOMINAL IN
CORNER SHAPESQUARE ALL CORNERS
MATERIALSTEEL COMP 1015 OUTER LAYER
MATERIALCOPPER ALLOY INNER LAYER
OVERALL LENGTH1.4250 INCHES MINIMUM AND 1.4350 INCHES MAXIMUM IN
DISTANCE FROM LUG END TO END OF BEARING0.3627 INCHES MINIMUM AND 0.3677 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
AMS-QQ-A-200/3Interchangeable
interchangeable cross-reference
interchangeable
AND10134-0501Interchangeable
interchangeable cross-reference
interchangeable
AND10134-0501/QQ-A-200/3-T4Interchangeable
interchangeable cross-reference
interchangeable
21334Interchangeable
interchangeable cross-reference
interchangeable
ASB12050Interchangeable
interchangeable cross-reference
interchangeable
D23942A PC 32Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 21328?
21328 is a RELAY,ELECTROMAGNETIC manufactured by Esselte. It is classified as a MRO (MRO_GENERAL).
What parts can replace 21328?
There are 16 known substitutes for 21328: AMS-QQ-A-200/3, AND10134-0501, AND10134-0501/QQ-A-200/3-T4 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 21328?
21328 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-371-6391. This indicates validated use in U.S. government and defense supply chains.
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