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Technical Data Sheet
PartsTable / COMPONENT / 203-108
203-108 ✓ Verified by PartsTable
— · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The CHUCK TOOL,DENTAL HANDPIECE is a the manufacturer industrial component. Key specifications include unit_of_issue_cube: 0.018 CUBIC FEET, supplementary_features: COGNIZANT USER SERVICE GERMAN AIR FORCE, end_item_identification: DISPLAY UNIT, RADAR, exterior_container_weight: 0.25 POUNDS LBS, general_characteristics_item_description: BUR CHANGING; REPLACEMENT BUR CHANGING TOOL FOR DENTAL HANDPIECE, 6520-00-103-2858, part_name_assigned_by_controlling_agency: CHUCK TOOL DEN HANDPIECE BUR CHANGING TOOL E.I. 6520-00-103-2858.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-359-0439, 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
203-108
NSN: 5340-00-359-0439
FSC: 5340
CAGE: 22852 — SPALLA INC (USA)
SPECIFICATIONS
unit_of_issue_cube0.018 CUBIC FEET
supplementary_featuresCOGNIZANT USER SERVICE GERMAN AIR FORCE
end_item_identificationDISPLAY UNIT, RADAR
exterior_container_weight0.25 POUNDS LBS
general_characteristics_item_descriptionBUR CHANGING; REPLACEMENT BUR CHANGING TOOL FOR DENTAL HANDPIECE, 6520-00-103-2858
part_name_assigned_by_controlling_agencyCHUCK TOOL DEN HANDPIECE BUR CHANGING TOOL E.I. 6520-00-103-2858
NSN5340-00-359-0439
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 203-108 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 27
C180-016-0250Interchangeable
interchangeable cross-reference
interchangeable
900717-2Interchangeable
interchangeable cross-reference
interchangeable
280041Interchangeable
interchangeable cross-reference
interchangeable
SM-C-143770Interchangeable
interchangeable cross-reference
interchangeable
LPPTGX61-1Interchangeable
interchangeable cross-reference
interchangeable
MC1000Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 203-108?
203-108 is a CHUCK TOOL,DENTAL HANDPIECE.
What parts can replace 203-108?
There are 27 known substitutes for 203-108: C180-016-0250, 900717-2, 280041 and 24 more. Substitute compatibility should be verified for your specific system.
Is 203-108 still available?
203-108 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026