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Technical Data Sheet
PartsTable / COMPONENT / 99-0228
99-0228 ✓ Verified by PartsTable
— · BALL BEARING
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

The HOUSING,BEARING UNIT is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYAMIDE NYLON OVERALL, overall_length: 21.000 INCHES MINIMUM AND 23.000 INCHES MAXIMUM IN, usage_location: EITHER KNEE, size_designation: LARGE, special_features: TWO-SLEEVE DESIGN; MULTI-DIRECTIONAL SUPPORT; FOR STABILIZING THE PATELLA/FEMORAL, part_name_assigned_by_controlling_agency: SUPPORT KNEE CRS EITHER KNEE21IN MIN23IN MAX 2SLEEVE MULTI-DIREC. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3130-01-134-0175, 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
99-0228
NSN: 3130-01-134-0175
FSC: 3130
CAGE: 92858 — HANNAY REELS INC (USA)
SPECIFICATIONS
materialPLASTIC POLYAMIDE NYLON OVERALL
overall_length21.000 INCHES MINIMUM AND 23.000 INCHES MAXIMUM IN
usage_locationEITHER KNEE
size_designationLARGE
special_featuresTWO-SLEEVE DESIGN; MULTI-DIRECTIONAL SUPPORT; FOR STABILIZING THE PATELLA/FEMORAL
part_name_assigned_by_controlling_agencySUPPORT KNEE CRS EITHER KNEE21IN MIN23IN MAX 2SLEEVE MULTI-DIREC
NSN3130-01-134-0175
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 99-0228 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
A403-4Interchangeable
interchangeable cross-reference
interchangeable
99-0228Interchangeable
interchangeable cross-reference
interchangeable
ISO-49-21Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 99-0228?
99-0228 is a HOUSING,BEARING UNIT.
What parts can replace 99-0228?
There are 3 known substitutes for 99-0228: A403-4, 99-0228, ISO-49-21. Substitute compatibility should be verified for your specific system.
What is the NSN for 99-0228?
99-0228 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3130-01-134-0175. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026