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Technical Data Sheet
PartsTable / COMPONENT / ZZ-R-765,CLIIB,GR.70
ZZ-R-765,CLIIB,GR.70 ✓ 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 ZZ-R-765,CLIIB,GR.70 is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-304-9819, 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
ZZ-R-765,CLIIB,GR.70
NSN: 5330-01-304-9819
FSC: 5330
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
Part NumberZZ-R-765,CLIIB,GR.70
NSN5330-01-304-9819
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: ZZ-R-765,CLIIB,GR.70 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
•
CENTER HOLE DIAMETER: 2.710 INCHES MINIMUM AND 2.758 INCHES MAXIMUM IN
•
MATERIAL: RUBBER SILICONE CLASS Q SEALING ELEMENT
•
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
•
CRITICALITY CODE JUSTIFICATION: ZZZY
•
CROSS-SECTIONAL HEIGHT: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
•
PERIPHERAL DIAMETER: 3.012 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
CENTER HOLE DIAMETER2.710 INCHES MINIMUM AND 2.758 INCHES MAXIMUM IN
MATERIALRUBBER SILICONE CLASS Q SEALING ELEMENT
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
CRITICALITY CODE JUSTIFICATIONZZZY
CROSS-SECTIONAL HEIGHT0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
PERIPHERAL DIAMETER3.012 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
MS28775-232Interchangeable
interchangeable cross-reference
interchangeable
70923582Interchangeable
interchangeable cross-reference
interchangeable
77725-66X1PC12Interchangeable
interchangeable cross-reference
interchangeable
ARP568-232Interchangeable
interchangeable cross-reference
interchangeable
AS568-902ZZR765CL2BGR70Interchangeable
interchangeable cross-reference
interchangeable
215-4497905 PC86Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is ZZ-R-765,CLIIB,GR.70?
ZZ-R-765,CLIIB,GR.70 is a ZZ-R-765,CLIIB,GR.70.
What parts can replace ZZ-R-765,CLIIB,GR.70?
There are 11 known substitutes for ZZ-R-765,CLIIB,GR.70: MS28775-232, 70923582, 77725-66X1PC12 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for ZZ-R-765,CLIIB,GR.70?
ZZ-R-765,CLIIB,GR.70 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-304-9819. 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