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81665-3 — GASKET

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

81665-3: GASKET.

The GASKET is a the manufacturer industrial component. Key specifications include material: RUBBER NEOPRENE OVERALL, hole_diameter: 0.120 INCHES NOMINAL FOURTH HOLE IN, overall_width: 1.188 INCHES NOMINAL IN, overall_length: 1.188 INCHES NOMINAL IN, center_hole_diameter: 0.737 INCHES NOMINAL IN, part_name_assigned_by_controlling_agency: GASKET, FLANGE. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-666-7585, 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
81665-3
NSN: 5330-01-666-7585
FSC: 5330 — Packing and Gasket Materials
CAGE: 00779 — TE CONNECTIVITY CORPORATION (USA)
SPECIFICATIONS
materialRUBBER NEOPRENE OVERALL
hole_diameter0.120 INCHES NOMINAL FOURTH HOLE IN
overall_width1.188 INCHES NOMINAL IN
overall_length1.188 INCHES NOMINAL IN
center_hole_diameter0.737 INCHES NOMINAL IN
part_name_assigned_by_controlling_agencyGASKET, FLANGE
NSN5330-01-666-7585
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 81665-3 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
•
COLOR: BLACK
•
CENTER HOLE DIAMETER: 0.737 INCHES NOMINAL IN
•
MATERIAL: RUBBER NEOPRENE OVERALL
•
HOLE DIAMETER: 0.120 INCHES NOMINAL FIRST HOLE IN
TECHNICAL CHARACTERISTICS
OVERALL LENGTH1.188 INCHES NOMINAL IN
OVERALL WIDTH1.188 INCHES NOMINAL IN
COLORBLACK
CENTER HOLE DIAMETER0.737 INCHES NOMINAL IN
PART NAME ASSIGNED BY CONTROLLING AGENCYGASKET, FLANGE
MATERIALRUBBER NEOPRENE OVERALL
HOLE DIAMETER0.120 INCHES NOMINAL FIRST HOLE IN
HOLE DIAMETER0.120 INCHES NOMINAL FOURTH HOLE IN
HOLE DIAMETER0.120 INCHES NOMINAL SECOND HOLE IN
HOLE DIAMETER0.120 INCHES NOMINAL THIRD HOLE IN
SUBSTITUTES & CROSS-REFERENCES 3
81665Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
362-4429Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
PC012881Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 81665-3?
81665-3 is a GASKET.
What parts can replace 81665-3?
There are 3 known substitutes for 81665-3: 81665, 362-4429, PC012881. Substitute compatibility should be verified for your specific system.
What is the NSN for 81665-3?
81665-3 is cataloged in the U.S. Government catalog under NSN 5330-01-666-7585. This indicates validated use in U.S. government and defense supply chains.
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