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Technical Data Sheet
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59666-1000 ✓ 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 GASKET is a the manufacturer industrial component. Key specifications include cut_type: RECTANGULAR OVERALL, material: LEAD OVERALL, joint_type: OVERLAY OVERALL, outside_diameter: 1.516 INCHES NOMINAL IN, aperture_diameter: 1.351 INCHES NOMINAL IN, peripheral_diameter: 0.781 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-286-8787, 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
59666-1000
NSN: 5330-00-286-8787
FSC: 5330
CAGE: 1LCX3 — GRAHAM CORP (USA)
SPECIFICATIONS
cut_typeRECTANGULAR OVERALL
materialLEAD OVERALL
joint_typeOVERLAY OVERALL
outside_diameter1.516 INCHES NOMINAL IN
aperture_diameter1.351 INCHES NOMINAL IN
peripheral_diameter0.781 INCHES NOMINAL IN
center_hole_diameter0.625 INCHES NOMINAL IN
cross-sectional_height0.312 INCHES NOMINAL IN
cross-sectional_thickness0.234 INCHES NOMINAL IN
cross-sectional_shape_styleSQUARE/RECTANGULAR
nondefinitive_spec/std_dataA GRADE
departure_from_cited_designatorAS MODIFIED BY MATERIAL
NSN5330-00-286-8787
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 59666-1000 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
•
APERTURE DIAMETER: 1.351 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 1.516 INCHES NOMINAL IN
•
CROSS-SECTIONAL THICKNESS: 0.234 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
APERTURE DIAMETER1.351 INCHES NOMINAL IN
OUTSIDE DIAMETER1.516 INCHES NOMINAL IN
CROSS-SECTIONAL THICKNESS0.234 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
51-527PC248Interchangeable
interchangeable cross-reference
interchangeable
601E 1.245 X 1.516 X .219Interchangeable
interchangeable cross-reference
interchangeable
M37966-1PC248Interchangeable
interchangeable cross-reference
interchangeable
5558 1-2MTLPKGInterchangeable
interchangeable cross-reference
interchangeable
E21050-211GSKT6 01EInterchangeable
interchangeable cross-reference
interchangeable
CW-2300AVPC390Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 59666-1000?
59666-1000 is a GASKET.
What parts can replace 59666-1000?
There are 15 known substitutes for 59666-1000: 51-527PC248, 601E 1.245 X 1.516 X .219, M37966-1PC248 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 59666-1000?
59666-1000 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-286-8787. This indicates validated use in U.S. government and defense supply chains.
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PartsTable Design LLC · partstable.com
Last verified: July 2026