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Technical Data Sheet
1866-2 ✓ Verified by PartsTable
Clementoni · 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 REACTOR is a Clementoni industrial component. Key specifications include material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT, body_width: 0.820 INCHES MAXIMUM IN, seal_width: 0.500 INCHES NOMINAL IN, body_height: 1.090 INCHES MAXIMUM IN, body_length: 2.000 INCHES MAXIMUM IN, rating_method: ELECTRICAL SINGLE COMPONENT SINGLE WINDING. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-620-5700, 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
1866-2
NSN: 5331-00-620-5700
FSC: 5331 — O-RING
CAGE: 81168 — STROHMEYER, JULIE A. DBA JULIE A. STROHMEYER (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT
body_width0.820 INCHES MAXIMUM IN
seal_width0.500 INCHES NOMINAL IN
body_height1.090 INCHES MAXIMUM IN
body_length2.000 INCHES MAXIMUM IN
rating_methodELECTRICAL SINGLE COMPONENT SINGLE WINDING
inclosure_typeFULLY INCLOSED
overall_length9.000 INCHES NOMINAL IN
mounting_methodUNTHREADED HOLE(S) SINGLE GROUP
frequency_rating2.4 KILOHERTZ NOMINAL SINGLE COMPONENT
outside_diameter2.012 INCHES NOMINAL IN
overall_diameter0.045 INCHES NOMINAL IN
NSN5331-00-620-5700
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 1866-2 MFR: Clementoni ⚠ 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
CROSS-SECTIONAL HEIGHT: 0.125 INCHES NOMINAL IN
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
OUTSIDE DIAMETER: 2.012 INCHES NOMINAL IN
CENTER HOLE DIAMETER: 1.719 INCHES MINIMUM AND 1.749 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL HEIGHT0.125 INCHES NOMINAL IN
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
OUTSIDE DIAMETER2.012 INCHES NOMINAL IN
CENTER HOLE DIAMETER1.719 INCHES MINIMUM AND 1.749 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 25
AS568-224Interchangeable
interchangeable cross-reference
interchangeable
8215931Interchangeable
interchangeable cross-reference
interchangeable
S-82Interchangeable
interchangeable cross-reference
interchangeable
A-A-2124-3Interchangeable
interchangeable cross-reference
interchangeable
WW-D-1991Interchangeable
interchangeable cross-reference
interchangeable
2156239Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1866-2?
1866-2 is a REACTOR manufactured by Clementoni.
What parts can replace 1866-2?
There are 25 known substitutes for 1866-2: AS568-224, 8215931, S-82 and 22 more. Substitute compatibility should be verified for your specific system.
Is 1866-2 still available?
1866-2 is currently cancelled.
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