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PartsTable / COMPONENT / R42C18205-185
R42C18205-185 ✓ 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 CLAMP,LOOP is a the manufacturer industrial component. Key specifications include diameter: 0.204 INCHES NOMINAL IN, material: ALUMINUM ALLOY 2024 BAND, overall_width: 0.500 INCHES NOMINAL IN, style_designator: SINGLE LOOP, tongue_hole_type: ROUND, UNTHREADED, material_thickness: 0.064 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-186-3412, 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
R42C18205-185
NSN: 5340-00-186-3412
FSC: 5340
CAGE: 80132 — NAVAL INVENTORY CONTROL POINT (USA)
SPECIFICATIONS
diameter0.204 INCHES NOMINAL IN
materialALUMINUM ALLOY 2024 BAND
overall_width0.500 INCHES NOMINAL IN
style_designatorSINGLE LOOP
tongue_hole_typeROUND, UNTHREADED
material_thickness0.064 INCHES NOMINAL IN
loop_inside_diameter1.250 INCHES NOMINAL IN
material_document_and_classificationQQ-A-250/5 FED SPEC SINGLE MATERIAL RESPONSE BAND
distance_from_loop_center_to_tongue_end1.280 INCHES NOMINAL IN
center_to_center_distance_between_loop_and_mounting_hole1.062 INCHES NOMINAL IN
NSN5340-00-186-3412
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: R42C18205-185 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
KEY FEATURES
•
DISTANCE FROM LOOP CENTER TO TONGUE END: 1.280 INCHES NOMINAL IN
•
LOOP INSIDE DIAMETER: 1.250 INCHES NOMINAL IN
•
CENTER TO CENTER DISTANCE BETWEEN LOOP AND MOUNTING HOLE: 1.062 INCHES NOMINAL IN
•
TONGUE HOLE TYPE: ROUND, UNTHREADED
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-250/5 FED SPEC SINGLE MATERIAL RESPONSE BAND
TECHNICAL CHARACTERISTICS (FLIS)
DISTANCE FROM LOOP CENTER TO TONGUE END1.280 INCHES NOMINAL IN
LOOP INSIDE DIAMETER1.250 INCHES NOMINAL IN
OVERALL WIDTH0.500 INCHES NOMINAL IN
CENTER TO CENTER DISTANCE BETWEEN LOOP AND MOUNTING HOLE1.062 INCHES NOMINAL IN
DISTANCE FROM LOOP CENTER TO TONGUE END1.280 INCHES NOMINAL IN
TONGUE HOLE TYPEROUND, UNTHREADED
LOOP INSIDE DIAMETER1.250 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-250/5 FED SPEC SINGLE MATERIAL RESPONSE BAND
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-250/5 FED SPEC SINGLE MATERIAL RESPONSE BAND
STYLE DESIGNATORSINGLE LOOP
VERIFIED SUBSTITUTES & CROSS-REFERENCES 28
MILC8603Upgraded Successor
successor cross-reference
successor
99122Upgraded Successor
successor cross-reference
successor
MS21919G8Upgraded Successor
successor cross-reference
successor
5096D16Upgraded Successor
successor cross-reference
successor
534002989402Upgraded Successor
successor cross-reference
successor
MS21919G11Upgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is R42C18205-185?
R42C18205-185 is a CLAMP,LOOP.
What parts can replace R42C18205-185?
There are 28 known substitutes for R42C18205-185: MILC8603, 99122, MS21919G8 and 25 more. Substitute compatibility should be verified for your specific system.
Is R42C18205-185 still available?
R42C18205-185 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