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B230121 — HOUSING,BEARING UNIT

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

B230121: HOUSING,BEARING UNIT.

The HOUSING,BEARING UNIT is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, overall_width: 1.410 INCHES NOMINAL IN, conductor_form: STRANDED SINGLE CONDUCTOR, overall_length: 3.670 INCHES NOMINAL IN, mounting_method: PRESS FIT, special_features: SLANTED UP AND BACK FOR TOTAL DEPTH OF 0.650 INCHES IN. This part is cataloged in the U.S.

Government catalog under NSN 3130-00-910-0992, 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
B230121
NSN: 3130-00-910-0992
FSC: 3130 — Bearings, Mounted
CAGE: 60587 — FEDERAL EQUIPMENT CO (USA)
SPECIFICATIONS
materialSTEEL OVERALL
overall_width1.410 INCHES NOMINAL IN
conductor_formSTRANDED SINGLE CONDUCTOR
overall_length3.670 INCHES NOMINAL IN
mounting_methodPRESS FIT
special_featuresSLANTED UP AND BACK FOR TOTAL DEPTH OF 0.650 INCHES IN
style_designatorRECTANGULAR
surface_treatmentENAMEL LUSTERLESS OVERALL
round_conductor_size18 AWG SINGLE CONDUCTOR
mounting_facility_width1.000 INCHES NOMINAL IN
mounting_facility_length3.250 INCHES NOMINAL IN
NSN3130-00-910-0992
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: B230121 · 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
SUBSTITUTES & CROSS-REFERENCES 2
M11319-10BPC11Reference document
Same NSN cross-reference
Reference document — Secondary reference
P244Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is B230121?
B230121 is a HOUSING,BEARING UNIT.
What parts can replace B230121?
There are 2 known substitutes for B230121: M11319-10BPC11, P244. Substitute compatibility should be verified for your specific system.
What is the NSN for B230121?
B230121 is cataloged in the U.S. Government catalog under NSN 3130-00-910-0992. 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.