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21328 — RELAY,ELECTROMAGNETIC

✓ Government record, cited
Esselte · MRO · MRO_GENERAL
PRODUCT OVERVIEW

21328: RELAY,ELECTROMAGNETIC.

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 part is cataloged in the U.S.

Government catalog 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
NIINs: 003716391, 010573701, 011410779, 013350189, 015436859, 016273191, 016713297
FSC: 3120 — Bearings, Plain, Unmounted
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
•
CORNER SHAPE: SQUARE ALL CORNERS
•
LOCKING LUG HEIGHT: 0.0450 INCHES MINIMUM AND 0.0550 INCHES MAXIMUM IN
•
BODY OUTSIDE DIAMETER: 3.4415 INCHES MINIMUM AND 3.4425 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: HALF SLEEVE, PLAIN, NO OUTSIDE FLANGES
•
BODY INSIDE DIAMETER: 3.2480 INCHES MINIMUM AND 3.2490 INCHES MAXIMUM IN
•
LOCKING LUG WIDTH: 0.2380 INCHES MINIMUM AND 0.2480 INCHES MAXIMUM IN
•
DISTANCE FROM LUG END TO END OF BEARING: 0.3627 INCHES MINIMUM AND 0.3677 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
CORNER SHAPESQUARE ALL CORNERS
LOCKING LUG HEIGHT0.0450 INCHES MINIMUM AND 0.0550 INCHES MAXIMUM IN
BODY OUTSIDE DIAMETER3.4415 INCHES MINIMUM AND 3.4425 INCHES MAXIMUM IN
STYLE DESIGNATORHALF SLEEVE, PLAIN, NO OUTSIDE FLANGES
OVERALL LENGTH1.4250 INCHES MINIMUM AND 1.4350 INCHES MAXIMUM IN
BODY INSIDE DIAMETER3.2480 INCHES MINIMUM AND 3.2490 INCHES MAXIMUM IN
LOCKING LUG WIDTH0.2380 INCHES MINIMUM AND 0.2480 INCHES MAXIMUM IN
DISTANCE FROM LUG END TO END OF BEARING0.3627 INCHES MINIMUM AND 0.3677 INCHES MAXIMUM IN
MATERIALSTEEL COMP 1015 OUTER LAYER
MATERIALCOPPER ALLOY INTERMEDIATE LAYER
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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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 is the NSN for 21328?
21328 is cataloged in the U.S. Government catalog under NSN 3120-00-371-6391. This indicates validated use in U.S. government and defense supply chains.
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