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311922 — HOUSING,BEARING UNIT

✓ Government record, cited
Siemens · BALL BEARING
PRODUCT OVERVIEW

311922: HOUSING,BEARING UNIT.

The HOUSING,BEARING UNIT is a Siemens industrial component. Key specifications include material: IRON CAST OVERALL, special_features: FLANGE ON EACH END, end_item_identification: TURBO CHARGER, SCHWITZER ENGINE COMPONENTS, SD4. This part is cataloged in the U.S.

Government catalog under NSN 3130-01-478-4969, 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
311922
NSN: 3130-01-478-4969
FSC: 3130 — Bearings, Mounted
CAGE: 53591 — SCHWITZER ENGINE COMPONENTS A HOUSEHOLD INTL CO (USA)
SPECIFICATIONS
materialIRON CAST OVERALL
special_featuresFLANGE ON EACH END
end_item_identificationTURBO CHARGER, SCHWITZER ENGINE COMPONENTS, SD4
NSN3130-01-478-4969
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 311922 · Siemens ⚠ 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
•
MATERIAL: IRON CAST OVERALL
TECHNICAL CHARACTERISTICS
SPECIAL FEATURESFLANGE ON EACH END
END ITEM IDENTIFICATIONTURBO CHARGER, SCHWITZER ENGINE COMPONENTS, SD4
MATERIALIRON CAST OVERALL
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 311922?
311922 is a HOUSING,BEARING UNIT manufactured by Siemens.
What is the NSN for 311922?
311922 is cataloged in the U.S. Government catalog under NSN 3130-01-478-4969. 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.