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Technical Data Sheet
PartsTable / O-RING / 87390
87390 ✓ 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

RESISTOR,VARIABLE,NONWIRE WOUND,. Key specifications include material: STEEL BODY, overall_height: 1.188 INCHES NOMINAL IN, outside_diameter: 2.375 INCHES NOMINAL IN, special_features: RADIATOR CAP WITH SPINLOK TYPE INSTALLAT, style_designator: CLOSED COOLING SYSTEM TYPE, pressure_relief_method: AUTOMATIC. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-123-3529, 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
87390
NSN: 5331-01-123-3529
FSC: 5331 — O-RING
CAGE: 08576 — PENTAIR FILTRATION SOLUTIONS, LLC (USA)
SPECIFICATIONS
materialSTEEL BODY
overall_height1.188 INCHES NOMINAL IN
outside_diameter2.375 INCHES NOMINAL IN
special_featuresRADIATOR CAP WITH SPINLOK TYPE INSTALLAT
style_designatorCLOSED COOLING SYSTEM TYPE
pressure_relief_methodAUTOMATIC
maximum_working_pressure14.000 POUNDS PER SQUARE INCH (PSI) LBS
system_for_which_designedPRESSURIZED
filler_neck_diameter_for_which_designed1.500 INCHES NOMINAL IN
NSN5331-01-123-3529
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 87390 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
38086Interchangeable
interchangeable cross-reference
interchangeable
AAX-0428Interchangeable
interchangeable cross-reference
interchangeable
10229Interchangeable
interchangeable cross-reference
interchangeable
0873-90Interchangeable
Same NIIN cross-reference
interchangeable
8013-559NInterchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 87390?
87390 is a RESISTOR,VARIABLE,NONWIRE WOUND, manufactured by Clementoni.
What parts can replace 87390?
There are 5 known substitutes for 87390: 38086, AAX-0428, 10229 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 87390?
87390 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-123-3529. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026