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7021-90-490-2124 — HOUSING,BEARING UNIT

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

7021-90-490-2124: HOUSING,BEARING UNIT.

The HOUSING,BEARING UNIT is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 7075 OVERALL, base_length: 0.7600 INCHES NOMINAL IN, bore_diameter: 0.3800 INCHES MINIMUM AND 0.3850 INCHES MAXIMUM IN, housing_width: 1.9060 INCHES NOMINAL IN, base_thickness: 0.1830 INCHES NOMINAL IN, housing_height: 0.9430 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3130-01-281-7225, 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
7021-90-490-2124
NSN: 3130-01-281-7225
FSC: 3130 — Bearings, Mounted
CAGE: 78286 — SIKORSKY AIRCRAFT CORPORATION DBA SIKORSKY AIRCRAFT CORP (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 7075 OVERALL
base_length0.7600 INCHES NOMINAL IN
bore_diameter0.3800 INCHES MINIMUM AND 0.3850 INCHES MAXIMUM IN
housing_width1.9060 INCHES NOMINAL IN
base_thickness0.1830 INCHES NOMINAL IN
housing_height0.9430 INCHES NOMINAL IN
housing_length1.0000 INCHES NOMINAL IN
shaft_end_typeOPEN
style_designatorPILLOW BLOCK, SOLID
mounting_hole_typeROUND, UNTHREADED
mounting_hole_diameter0.0620 INCHES NOMINAL IN
material_document_and_classificationQQ-A-200/11 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN3130-01-281-7225
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 7021-90-490-2124 · 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
•
HOUSING HEIGHT: 0.9430 INCHES NOMINAL IN
•
MOUNTING HOLE TYPE: ROUND, UNTHREADED
•
STYLE DESIGNATOR: PILLOW BLOCK, SOLID
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-200/11 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
MOUNTING HOLE DIAMETER: 0.0620 INCHES NOMINAL IN
•
CENTER TO CENTER DISTANCE BETWEEN MOUNTING HOLES ALONG WIDTH: 1.2800 INCHES NOMINAL IN
•
HOUSING WIDTH: 1.9060 INCHES NOMINAL IN
•
BASE LENGTH: 0.7600 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
HOUSING HEIGHT0.9430 INCHES NOMINAL IN
MOUNTING HOLE TYPEROUND, UNTHREADED
STYLE DESIGNATORPILLOW BLOCK, SOLID
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-200/11 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MOUNTING HOLE DIAMETER0.0620 INCHES NOMINAL IN
CENTER TO CENTER DISTANCE BETWEEN MOUNTING HOLES ALONG WIDTH1.2800 INCHES NOMINAL IN
HOUSING WIDTH1.9060 INCHES NOMINAL IN
BASE LENGTH0.7600 INCHES NOMINAL IN
SHAFT END TYPEOPEN
BASE THICKNESS0.1830 INCHES NOMINAL IN
OTHER ITEMS IN FSC 3130 — Bearings, Mounted
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3130-00-001-5118 3130-00-001-5137 3130-00-001-6585 3130-00-003-0422 3130-00-003-0455 3130-00-003-0794 3130-00-003-2802 3130-00-003-9535
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 7021-90-490-2124?
7021-90-490-2124 is a HOUSING,BEARING UNIT.
What is the NSN for 7021-90-490-2124?
7021-90-490-2124 is cataloged in the U.S. Government catalog under NSN 3130-01-281-7225. This indicates validated use in U.S. government and defense supply chains.
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