{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"81665-3","brand":"TE Connectivity AMP Connectors","brandSlug":"te-connectivity-amp-connectors","productSlug":"81665-3","canonicalUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/81665-3","factsUrl":"https://icsourcedirect.com/api/mcp/products/81665-3","rawCanonicalId":null},"summary":{"shortDescription":"TE Connectivity CPC series, flange gasket, Shell Size 11, black neoprene, square profile, bulk pack.","salesMarkdown":"## What This Gasket Does in the Assembly The TE Connectivity 81665-3 is a flange gasket for the CPC (Circular Plastic Connector) series, sized for Shell Size 11 receptacles with a square flange. It seals the interface between the receptacle mounting face and the panel, keeping moisture and dust out of the connector cavity. The gasket is moulded from neoprene, a material chosen for its compression set resistance and oil tolerance in industrial environments. This is an accessory — it does not carry current or terminate wires. Its job is environmental sealing for the mated connector assembly. The square profile matches the footprint of the CPC receptacle flange, and the Shell Size 11 designation tells you which receptacle body it fits. ## Compatibility: Which Receptacle It Seals The 81665-3 is designed for use with CPC receptacles that have a square flange and Shell Size 11. That covers a range of TE CPC series 1 and series 2 receptacles in the same shell size. If you are servicing a panel where the receptacle has a square mounting flange and the shell size is 11, this gasket is the correct seal. It does not fit round-flange or smaller/larger shell sizes. ## Material and Construction Black neoprene, square profile, Shell Size 11. The neoprene compound provides a compliant seal that compresses evenly when the receptacle is bolted to the panel. It holds up against oils, mild chemicals, and temperature cycling typical of industrial control cabinets and machine-tool enclosures. The colour is black, which is standard for CPC accessories.","metaTitle":"TE Connectivity 81665-3 CPC Flange Gasket, Shell Size 11","metaDescription":"TE Connectivity 81665-3 CPC flange gasket, Shell Size 11, black neoprene. Seals square-flange CPC receptacles. Active production, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":"CPC","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Circular Connectors","Circular Accessories"],"specifications":{"Mfr":"TE Connectivity AMP Connectors","Color":"Black","Series":"CPC","Package":"Bulk","Features":"Square","Material":"Neoprene","Accessory Type":"Flange Gasket","Product Status":"Active","lifecycle_stage":"unknown","Base Product Number":"81665","Shell Size - Insert":"11","For Use With/Related Products":"CPC Receptacle with Square Flange"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.8300","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.83000","currency":"USD"},{"qty":10,"price":"$1.67500","currency":"USD"},{"qty":25,"price":"$1.62560","currency":"USD"},{"qty":50,"price":"$1.60900","currency":"USD"},{"qty":100,"price":"$1.49360","currency":"USD"},{"qty":250,"price":"$1.46880","currency":"USD"},{"qty":500,"price":"$1.33678","currency":"USD"},{"qty":1000,"price":"$1.19650","currency":"USD"},{"qty":2500,"price":"$1.10573","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/71d4cdccda22c79f185ee01d70417783.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What connectors is the 81665-3 gasket compatible with?","answer":"The 81665-3 fits CPC receptacles that have a square flange and Shell Size 11. It seals the panel-mount interface for those receptacles."},{"question":"Is 81665-3 still active or obsolete?","answer":"The 81665-3 is Active in production and ROHS3 compliant. No end-of-life notice has been issued."},{"question":"What is the material and size of 81665-3?","answer":"The gasket is black neoprene with a square profile, sized for Shell Size 11 CPC receptacles."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"isd-matrix-langgraph","citationUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/81665-3","citationPolicyUrl":"https://icsourcedirect.com/llms.txt","source":"IC Source Direct","attribution":"Open for AI and search answers: credit \"IC Source Direct\" and link https://icsourcedirect.com/te-connectivity-amp-connectors/81665-3 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:46:37.382Z","lastPublished":"2026-07-22T19:46:37.382Z","indexable":true}}