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2548821 — HOUSING,BEARING UNIT

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

2548821: HOUSING,BEARING UNIT.

The HOUSING,BEARING UNIT is a the manufacturer industrial component. Key specifications include body_length: 0.500 INCHES MAXIMUM IN, rating_method: ELECTRICAL SINGLE COMPONENT SINGLE WINDING, inclosure_type: FULLY INCLOSED, inductance_type: FIXED, mounting_method: TERMINAL SINGLE GROUP, frequency_rating: 1.0 KILOHERTZ NOMINAL SINGLE COMPONENT. This part is cataloged in the U.S.

Government catalog under NSN 3130-00-218-3639, 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
2548821
NSN: 3130-00-218-3639
NIINs: 002183639, 004151768
FSC: 3130 — Bearings, Mounted
CAGE: 93232 — CURTISS-WRIGHT ELECTRO-MECHANICAL CORPORATION DBA CURTISS WRIGHT ENGINEERED PUMP DIVISION USE CAGE CODE 0UBG9 FOR CATALOGING (USA)
SPECIFICATIONS
body_length0.500 INCHES MAXIMUM IN
rating_methodELECTRICAL SINGLE COMPONENT SINGLE WINDING
inclosure_typeFULLY INCLOSED
inductance_typeFIXED
mounting_methodTERMINAL SINGLE GROUP
frequency_rating1.0 KILOHERTZ NOMINAL SINGLE COMPONENT
winding_quantity1 SINGLE COMPONENT
inductance_rating100.00 MICROHENRIES NOMINAL SINGLE COMPONENT SINGLE WINDING
body_outside_diameter0.500 INCHES MAXIMUM IN
reliability_indicatorNOT ESTABLISHED
maximum_operating_temp100.0 CELSIUS DEGC
end_item_identificationCENTRIFUGAL PUMP
NSN3130-00-218-3639
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 2548821 · 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
TECHNICAL CHARACTERISTICS
END ITEM IDENTIFICATIONCENTRIFUGAL PUMP
SUBSTITUTES & CROSS-REFERENCES 9
SL6414PC80Reference document
Same NSN cross-reference
Reference document — Secondary reference
SL4879PC80Reference document
Same NSN cross-reference
Reference document — Secondary reference
SL8982PC25Reference document
Same NSN cross-reference
Reference document — Secondary reference
SL8132PC25Reference document
Same NSN cross-reference
Reference document — Secondary reference
029481-01Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
3452PReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 2548821?
2548821 is a HOUSING,BEARING UNIT.
What parts can replace 2548821?
There are 9 known substitutes for 2548821: SL6414PC80, SL4879PC80, SL8982PC25 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2548821?
2548821 is cataloged in the U.S. Government catalog under NSN 3130-00-218-3639. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.