PartsTable
Technical Data Sheet
77968A ✓ 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: RUBBER SYNTHETIC OVERALL, outside_diameter: 3.115 INCHES MINIMUM AND 3.125 INCHES MAXIMUM IN, style_designator: CIRCULAR, aperture_diameter: 2.828 INCHES MINIMUM AND 2.838 INCHES MAXIMUM IN, cross-sectional_thickness: 0.109 INCHES MINIMUM AND 0.141 INCHES MAXIMUM IN, cross-sectional_shape_style: SOLID SINGLE OR COMPOSITION. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-291-2967, 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
77968A
NSN: 5330-00-291-2967
FSC: 5330
CAGE: 28265 — HERCULES ENGINE CO INC (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC OVERALL
outside_diameter3.115 INCHES MINIMUM AND 3.125 INCHES MAXIMUM IN
style_designatorCIRCULAR
aperture_diameter2.828 INCHES MINIMUM AND 2.838 INCHES MAXIMUM IN
cross-sectional_thickness0.109 INCHES MINIMUM AND 0.141 INCHES MAXIMUM IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
material_document_and_classification-94 FSCM 81321 MFR REF SINGLE MATERIAL RESPONSE OVERALL
NSN5330-00-291-2967
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 77968A 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
CROSS-SECTIONAL THICKNESS: 0.109 INCHES MINIMUM AND 0.141 INCHES MAXIMUM IN
OUTSIDE DIAMETER: 3.115 INCHES MINIMUM AND 3.125 INCHES MAXIMUM IN
APERTURE DIAMETER: 2.828 INCHES MINIMUM AND 2.838 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
MATERIAL: RUBBER SYNTHETIC OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION: -94 FSCM 81321 MFR REF SINGLE MATERIAL RESPONSE OVERALL
STYLE DESIGNATOR: CIRCULAR
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL THICKNESS0.109 INCHES MINIMUM AND 0.141 INCHES MAXIMUM IN
OUTSIDE DIAMETER3.115 INCHES MINIMUM AND 3.125 INCHES MAXIMUM IN
APERTURE DIAMETER2.828 INCHES MINIMUM AND 2.838 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
MATERIALRUBBER SYNTHETIC OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION-94 FSCM 81321 MFR REF SINGLE MATERIAL RESPONSE OVERALL
STYLE DESIGNATORCIRCULAR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
21016Interchangeable
interchangeable cross-reference
interchangeable
14788AInterchangeable
interchangeable cross-reference
interchangeable
306-0060-00Interchangeable
interchangeable cross-reference
interchangeable
5FPInterchangeable
interchangeable cross-reference
interchangeable
314A127Interchangeable
interchangeable cross-reference
interchangeable
1787815PC8Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 77968A?
77968A is a GASKET.
What parts can replace 77968A?
There are 17 known substitutes for 77968A: 21016, 14788A, 306-0060-00 and 14 more. Substitute compatibility should be verified for your specific system.
Is 77968A still available?
77968A is currently cancelled.
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