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0638-20-500-2103 — HOUSING,BEARING UNIT

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

0638-20-500-2103: HOUSING,BEARING UNIT.

The HOUSING,BEARING UNIT is a the manufacturer industrial component. Key specifications include end_item_identification: CRITICAL APPLICATION ITEM (CAI);CH-53K SIKORSKY HEAVY LIFT HELICOPTER, criticality_code_justification: AGAV, part_name_assigned_by_controlling_agency: HOUSING,BEARING UNIT. This part is cataloged in the U.S.

Government catalog under NSN 3130-01-697-0179, 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
0638-20-500-2103
NSN: 3130-01-697-0179
FSC: 3130 — Bearings, Mounted
CAGE: 78286 — SIKORSKY AIRCRAFT CORPORATION DBA SIKORSKY AIRCRAFT CORP (USA)
SPECIFICATIONS
end_item_identificationCRITICAL APPLICATION ITEM (CAI);CH-53K SIKORSKY HEAVY LIFT HELICOPTER
criticality_code_justificationAGAV
part_name_assigned_by_controlling_agencyHOUSING,BEARING UNIT
NSN3130-01-697-0179
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 0638-20-500-2103 · 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
•
CRITICALITY CODE JUSTIFICATION: AGAV
TECHNICAL CHARACTERISTICS
CRITICALITY CODE JUSTIFICATIONAGAV
PART NAME ASSIGNED BY CONTROLLING AGENCYHOUSING,BEARING UNIT
END ITEM IDENTIFICATIONCRITICAL APPLICATION ITEM (CAI);CH-53K SIKORSKY HEAVY LIFT HELICOPTER
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
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 0638-20-500-2103?
0638-20-500-2103 is a HOUSING,BEARING UNIT.
What is the NSN for 0638-20-500-2103?
0638-20-500-2103 is cataloged in the U.S. Government catalog under NSN 3130-01-697-0179. This indicates validated use in U.S. government and defense supply chains.
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