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LLHQ64346 ✓ 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 SILICONE CLASS Q OVERALL, hole_diameter: 0.035 INCHES MINIMUM AND 0.040 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN, hardness_rating: 60.0 SHORE DUROMETER A MINIMUM AND 75.0 SHORE DUROMETER A MAXIMUM OVERALL, outside_diameter: 0.650 INCHES NOMINAL IN, special_features: SIXTH BOLT HOLE CENTRALLY LOCATED,0.035 IN. MIN TO 0.040 IN.

MAX DIA IN, style_designator: CIRCULAR. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-314-6785, 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
LLHQ64346
NSN: 5330-01-314-6785
FSC: 5330
CAGE: 14153 — DEFENSE LOGISTICS AGENCY DBA DEFENSE SUPPLY CENTER PHILADELPHIA (USA)
SPECIFICATIONS
materialRUBBER SILICONE CLASS Q OVERALL
hole_diameter0.035 INCHES MINIMUM AND 0.040 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN
hardness_rating60.0 SHORE DUROMETER A MINIMUM AND 75.0 SHORE DUROMETER A MAXIMUM OVERALL
outside_diameter0.650 INCHES NOMINAL IN
special_featuresSIXTH BOLT HOLE CENTRALLY LOCATED,0.035 IN. MIN TO 0.040 IN. MAX DIA IN
style_designatorCIRCULAR
bolt_hole_quantity5
bolt_circle_diameter0.400 INCHES NOMINAL IN
special_test_featuresSPECIAL QUALITY CONTROL TESTING
cross-sectional_thickness0.250 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
criticality_code_justificationZZZY
NSN5330-01-314-6785
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: LLHQ64346 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
•
CRITICALITY CODE JUSTIFICATION: ZZZY
•
BOLT HOLE QUANTITY: 5
•
OUTSIDE DIAMETER: 0.650 INCHES NOMINAL IN
•
CROSS-SECTIONAL THICKNESS: 0.250 INCHES NOMINAL IN
•
SPECIAL TEST FEATURES: SPECIAL QUALITY CONTROL TESTING
•
MATERIAL: RUBBER SILICONE CLASS Q OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
•
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: AS DIFFERENTIATED BY MATRIAL WHICH MUST CONFORM TO SHIPS PARTS CONTROL CENTER SPECIAL QUALITY CONTROL PROVISIONS
TECHNICAL CHARACTERISTICS (FLIS)
CRITICALITY CODE JUSTIFICATIONZZZY
BOLT HOLE QUANTITY5
OUTSIDE DIAMETER0.650 INCHES NOMINAL IN
CROSS-SECTIONAL THICKNESS0.250 INCHES NOMINAL IN
SPECIAL TEST FEATURESSPECIAL QUALITY CONTROL TESTING
MATERIALRUBBER SILICONE CLASS Q OVERALL
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSAS DIFFERENTIATED BY MATRIAL WHICH MUST CONFORM TO SHIPS PARTS CONTROL CENTER SPECIAL QUALITY CONTROL PROVISIONS
HARDNESS RATING60.0 SHORE DUROMETER A MINIMUM AND 75.0 SHORE DUROMETER A MAXIMUM OVERALL
TEST DATA DOCUMENT81349-MIL-P-23199 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
11196Interchangeable
interchangeable cross-reference
interchangeable
DC37-SN332 D41461 PIECE-13Interchangeable
interchangeable cross-reference
interchangeable
T11888Interchangeable
interchangeable cross-reference
interchangeable
LS-46195 ITEM NO. 23Interchangeable
interchangeable cross-reference
interchangeable
LS-46195Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is LLHQ64346?
LLHQ64346 is a GASKET.
What parts can replace LLHQ64346?
There are 5 known substitutes for LLHQ64346: 11196, DC37-SN332 D41461 PIECE-13, T11888 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for LLHQ64346?
LLHQ64346 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-314-6785. This indicates validated use in U.S. government and defense supply chains.
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Last verified: July 2026