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Technical Data Sheet
PartsTable / COMPONENT / 20-135G
20-135G ✓ 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 material: ASBESTOS OVERALL, hole_diameter: 0.625 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, outside_diameter: 8.750 INCHES NOMINAL IN, special_features: ONE BOLT HOLE 0.688 IN. DIA IN, bolt_circle_diameter: 6.375 INCHES NOMINAL IN, cross-sectional_thickness: 0.031 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 5330-00-375-4861, 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
20-135G
NSN: 5330-00-375-4861
FSC: 5330
CAGE: 27235 — HARDIE-TYNES CO., INC. (USA)
SPECIFICATIONS
materialASBESTOS OVERALL
hole_diameter0.625 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
outside_diameter8.750 INCHES NOMINAL IN
special_featuresONE BOLT HOLE 0.688 IN. DIA IN
bolt_hole_quantity8
bolt_circle_diameter6.375 INCHES NOMINAL IN
cross-sectional_thickness0.031 INCHES NOMINAL IN
NSN5330-00-375-4861
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 20-135G 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
•
MATERIAL: ASBESTOS OVERALL
•
OUTSIDE DIAMETER: 8.750 INCHES NOMINAL IN
•
BOLT CIRCLE DIAMETER: 6.375 INCHES NOMINAL IN
•
CROSS-SECTIONAL THICKNESS: 0.031 INCHES NOMINAL IN
•
BOLT HOLE QUANTITY: 8
•
HOLE DIAMETER: 0.625 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALASBESTOS OVERALL
OUTSIDE DIAMETER8.750 INCHES NOMINAL IN
BOLT CIRCLE DIAMETER6.375 INCHES NOMINAL IN
CROSS-SECTIONAL THICKNESS0.031 INCHES NOMINAL IN
BOLT HOLE QUANTITY8
HOLE DIAMETER0.625 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
SPECIAL FEATURESONE BOLT HOLE 0.688 IN. DIA IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
53101658404Interchangeable
interchangeable cross-reference
interchangeable
20-13-5Interchangeable
interchangeable cross-reference
interchangeable
32054-0171Interchangeable
interchangeable cross-reference
interchangeable
571-257Interchangeable
interchangeable cross-reference
interchangeable
S177-6301Interchangeable
interchangeable cross-reference
interchangeable
963Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 20-135G?
20-135G is a GASKET.
What parts can replace 20-135G?
There are 12 known substitutes for 20-135G: 53101658404, 20-13-5, 32054-0171 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 20-135G?
20-135G is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-375-4861. 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