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721-7385444-7 — PACKING,PREFORMED

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

721-7385444-7: PACKING,PREFORMED.

The PACKING,PREFORMED is a the manufacturer industrial component. Key specifications include cut_type: RECTANGULAR OVERALL, material: RUBBER CHLOROPRENE CLASS CR OVERALL, joint_type: BUTT OVERALL, hardness_rating: 65.0 SHORE DUROMETER A MINIMUM AND 75.0 SHORE DUROMETER A MAXIMUM OVERALL, special_features: VULCANIZED JOINT SHALL HAVE A MINIMUM TENSIL STRENGTH OF 300 PSI, center_hole_diameter: 83.500 INCHES MINIMUM AND 84.500 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-547-0484, 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
721-7385444-7
NSN: 5330-01-547-0484
FSC: 5330 — Packing and Gasket Materials
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
cut_typeRECTANGULAR OVERALL
materialRUBBER CHLOROPRENE CLASS CR OVERALL
joint_typeBUTT OVERALL
joint_quantity1
hardness_rating65.0 SHORE DUROMETER A MINIMUM AND 75.0 SHORE DUROMETER A MAXIMUM OVERALL
special_featuresVULCANIZED JOINT SHALL HAVE A MINIMUM TENSIL STRENGTH OF 300 PSI
center_hole_diameter83.500 INCHES MINIMUM AND 84.500 INCHES MAXIMUM IN
end_item_identificationOHIO CLASS SSBN (TRIDENT)
cross-sectional_shape_styleO-RING
cross_section_outside_diameter0.250 INCHES MINIMUM AND 0.300 INCHES MAXIMUM IN
material_document_and_classificationMIL-R-3065 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5330-01-547-0484
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 721-7385444-7 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
•
JOINT QUANTITY: 1
•
HARDNESS RATING: 65.0 SHORE DUROMETER A MINIMUM AND 75.0 SHORE DUROMETER A MAXIMUM OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-R-3065 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: O-RING
•
CUT TYPE: RECTANGULAR OVERALL
•
CENTER HOLE DIAMETER: 83.500 INCHES MINIMUM AND 84.500 INCHES MAXIMUM IN
•
CROSS SECTION OUTSIDE DIAMETER: 0.250 INCHES MINIMUM AND 0.300 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
JOINT QUANTITY1
HARDNESS RATING65.0 SHORE DUROMETER A MINIMUM AND 75.0 SHORE DUROMETER A MAXIMUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-3065 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLEO-RING
CUT TYPERECTANGULAR OVERALL
SPECIAL FEATURESVULCANIZED JOINT SHALL HAVE A MINIMUM TENSIL STRENGTH OF 300 PSI
CENTER HOLE DIAMETER83.500 INCHES MINIMUM AND 84.500 INCHES MAXIMUM IN
CROSS SECTION OUTSIDE DIAMETER0.250 INCHES MINIMUM AND 0.300 INCHES MAXIMUM IN
END ITEM IDENTIFICATIONOHIO CLASS SSBN (TRIDENT)
MATERIALRUBBER CHLOROPRENE CLASS CR OVERALL
OTHER ITEMS IN FSC 5330 — Packing and Gasket Materials
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5330-00-000-0085 5330-00-000-0167 5330-00-000-5275 5330-00-001-1260 5330-00-001-1833 5330-00-001-1844 5330-00-001-1845 5330-00-001-1846
SUBSTITUTES & CROSS-REFERENCES 2
54-35-0015Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
3227009 ITEM 2Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 721-7385444-7?
721-7385444-7 is a PACKING,PREFORMED.
What parts can replace 721-7385444-7?
There are 2 known substitutes for 721-7385444-7: 54-35-0015, 3227009 ITEM 2. Substitute compatibility should be verified for your specific system.
What is the NSN for 721-7385444-7?
721-7385444-7 is cataloged in the U.S. Government catalog under NSN 5330-01-547-0484. This indicates validated use in U.S. government and defense supply chains.
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