PartsTable
Technical Data Sheet

20574/300.1 — BEARING,SHUTTER DRIVE

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

20574/300.1: BEARING,SHUTTER DRIVE.

The BEARING,SHUTTER DRIVE is a the manufacturer industrial component. Key specifications include fsc_application_data: MECHANISM,CAMERA, end_item_identification: MODEL KS144A, general_characteristics_item_description: PHOSPHOR BRONZE CAST; SMOOTH FINISH; 0.472 IN. DIA; 0.256 IN.

H; THROUGH HOLE MTG 0.2817 IN. DIA IN. This part is cataloged in the U.S.

Government catalog under NSN 3110-01-141-9793, 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
20574/300.1
NSN: 3110-01-141-9793
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: K0735 — TRIDENT MARITIME SYSTEMS UK LIMITED (GBR)
SPECIFICATIONS
fsc_application_dataMECHANISM,CAMERA
end_item_identificationMODEL KS144A
general_characteristics_item_descriptionPHOSPHOR BRONZE CAST; SMOOTH FINISH; 0.472 IN. DIA; 0.256 IN. H; THROUGH HOLE MTG 0.2817 IN. DIA IN
NSN3110-01-141-9793
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 20574/300.1 · OEM ⚠ VERIFY BEFORE ORDERING Cup and cone sold separately — verify you are ordering BOTH parts or the correct component. Always replace cup and cone together — mismatched wear = premature failure ✓ BROKER TIP Taper angle determines axial load capacity. Steeper angle = higher axial load rating. Timken series numbers indicate dimensions — cross-reference carefully PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
FSC APPLICATION DATA: MECHANISM,CAMERA
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: PHOSPHOR BRONZE CAST; SMOOTH FINISH; 0.472 IN. DIA; 0.256 IN. H; THROUGH HOLE MTG 0.2817 IN. DIA IN
TECHNICAL CHARACTERISTICS
FSC APPLICATION DATAMECHANISM,CAMERA
GENERAL CHARACTERISTICS ITEM DESCRIPTIONPHOSPHOR BRONZE CAST; SMOOTH FINISH; 0.472 IN. DIA; 0.256 IN. H; THROUGH HOLE MTG 0.2817 IN. DIA IN
END ITEM IDENTIFICATIONMODEL KS144A
OTHER ITEMS IN FSC 3110 — Bearings, Antifriction, Unmounted
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3110-00-001-1937 3110-00-001-1938 3110-00-001-4661 3110-00-001-4662 3110-00-001-4689 3110-00-001-4722
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 20574/300.1?
20574/300.1 is a BEARING,SHUTTER DRIVE.
What is the NSN for 20574/300.1?
20574/300.1 is cataloged in the U.S. Government catalog under NSN 3110-01-141-9793. 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.