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Technical Data Sheet
PartsTable / COMPONENT / 51C6493PT68
51C6493PT68 ✓ 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 PACKING WITH RETAINER is a the manufacturer industrial component. Key specifications include material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR PACKING, construction: TWO-PIECE, outside_diameter: 0.687 INCHES NOMINAL IN, surface_treatment: CADMIUM RETAINER, retainer_thickness: 0.050 INCHES NOMINAL IN, packing_inside_diameter: 0.364 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-613-8963, 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
51C6493PT68
NSN: 5330-00-613-8963
FSC: 5330
CAGE: 79500 — WESTINGHOUSE ELECTRIC CORP (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR PACKING
constructionTWO-PIECE
outside_diameter0.687 INCHES NOMINAL IN
surface_treatmentCADMIUM RETAINER
retainer_thickness0.050 INCHES NOMINAL IN
packing_inside_diameter0.364 INCHES NOMINAL IN
retainer_inside_diameter0.500 INCHES NOMINAL IN
packing_ring_cross-sectional_diameter0.070 INCHES NOMINAL IN
NSN5330-00-613-8963
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 51C6493PT68 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
•
SURFACE TREATMENT: CADMIUM RETAINER
•
OUTSIDE DIAMETER: 0.687 INCHES NOMINAL IN
•
PACKING INSIDE DIAMETER: 0.364 INCHES NOMINAL IN
•
PACKING RING CROSS-SECTIONAL DIAMETER: 0.070 INCHES NOMINAL IN
•
CONSTRUCTION: TWO-PIECE
•
RETAINER INSIDE DIAMETER: 0.500 INCHES NOMINAL IN
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR PACKING
•
RETAINER THICKNESS: 0.050 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE TREATMENTCADMIUM RETAINER
OUTSIDE DIAMETER0.687 INCHES NOMINAL IN
PACKING INSIDE DIAMETER0.364 INCHES NOMINAL IN
PACKING RING CROSS-SECTIONAL DIAMETER0.070 INCHES NOMINAL IN
CONSTRUCTIONTWO-PIECE
RETAINER INSIDE DIAMETER0.500 INCHES NOMINAL IN
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR PACKING
RETAINER THICKNESS0.050 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
11045Interchangeable
interchangeable cross-reference
interchangeable
A11045Interchangeable
interchangeable cross-reference
interchangeable
22306Interchangeable
interchangeable cross-reference
interchangeable
930-2-44Interchangeable
interchangeable cross-reference
interchangeable
2508DSP36ITEM3Interchangeable
interchangeable cross-reference
interchangeable
14098611Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 51C6493PT68?
51C6493PT68 is a PACKING WITH RETAINER.
What parts can replace 51C6493PT68?
There are 15 known substitutes for 51C6493PT68: 11045, A11045, 22306 and 12 more. Substitute compatibility should be verified for your specific system.
Is 51C6493PT68 still available?
51C6493PT68 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026