PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

754-7066812-6Gasket

Naval Sea Systems Command · NSN 5330-01-496-9804 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-01-496-9804 — this item is cataloged by the U.S. Government under National Stock Number 5330-01-496-9804. Primary manufacturer part number: 754-7066812-6.
Features
  • Gasket — FSC 5330
  • Style Designator: CIRCULAR
  • Outside Diameter: 31.500 INCHES NOMINAL IN
  • Material Document and Classification: MIL-R-15624 CL-III MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Aperture Diameter: 29.750 INCHES NOMINAL IN
  • Material: RUBBER SYNTHETIC OVERALL
  • Hardness Rating: 50.0 SHORE DUROMETER A NOMINAL OVERALL
  • Cross-Sectional Shape Style: SOLID SINGLE OR COMPOSITION
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Synthetic Overall construction
General Description

The Gasket, cataloged under National Stock Number 5330-01-496-9804, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Naval Sea Systems Command. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5330-01-496-9804
Primary Part Number754-7066812-6
Item NameGasket
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerNaval Sea Systems Command
StatusACTIVE
Style DesignatorCIRCULAR
Outside Diameter31.500 INCHES NOMINAL IN
Material Document and ClassificationMIL-R-15624 CL-III MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Aperture Diameter29.750 INCHES NOMINAL IN
MaterialRUBBER SYNTHETIC OVERALL
Hardness Rating50.0 SHORE DUROMETER A NOMINAL OVERALL
Cross-Sectional Shape StyleSOLID SINGLE OR COMPOSITION
Cross-Sectional Thickness0.781 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5330-00-330-13893016879 INTERCHANGEABLE
Gasket,muzzle Door
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5330-00-383-79763017117 INTERCHANGEABLE
Packing,preformed
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5330-00-674-20553017217 INTERCHANGEABLE
Seal,nonmetallic Special Shaped
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5330-00-786-18043017112 INTERCHANGEABLE
Seal,nonmetallic Special Shaped
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5330-01-077-58383017218 INTERCHANGEABLE
Packing,preformed
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5330-01-087-1958708-4674145 ITEM 6 INTERCHANGEABLE
Seal,nonmetallic Special Shaped
Naval Ship Systems Command
5330-01-282-9358 INTERCHANGEABLE
Gasket
5330-01-490-44847072411-1B INTERCHANGEABLE
Gasket
Naval Sea Systems Command
5330-01-493-68577072624-0001 INTERCHANGEABLE
Gasket
Electric Boat Corporation Div General Dynamics Electric Boat
5330-01-494-23507072265-1 INTERCHANGEABLE
Gasket
Electric Boat Corporation Div General Dynamics Electric Boat
Cross-Reference Index
Part NumberManufacturer
H553-1503-6 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
8612484 Naval Sea Systems Command (USA)
754-7066812-6 PRIMARY Naval Sea Systems Command (USA)
H5531502A-6 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
Related Parts
5330-00-330-1389INTERCHANGEABLE
GASKET,MUZZLE DOOR
3016879
5330-00-383-7976INTERCHANGEABLE
PACKING,PREFORMED
3017117
5330-00-674-2055INTERCHANGEABLE
SEAL,NONMETALLIC SPECIAL SHAPED
3017217
5330-00-786-1804INTERCHANGEABLE
SEAL,NONMETALLIC SPECIAL SHAPED
3017112
5330-01-077-5838INTERCHANGEABLE
PACKING,PREFORMED
3017218
5330-01-087-1958INTERCHANGEABLE
SEAL,NONMETALLIC SPECIAL SHAPED
708-4674145 ITEM 6
5330-01-282-9358INTERCHANGEABLE
GASKET
5330-01-490-4484INTERCHANGEABLE
GASKET
7072411-1B
5330-01-493-6857INTERCHANGEABLE
GASKET
7072624-0001
5330-01-494-2350INTERCHANGEABLE
GASKET
7072265-1
5330-01-494-8581INTERCHANGEABLE
GASKET
751-7072723-1
5330-01-500-8687INTERCHANGEABLE
SEAL,NONMETALLIC SPECIAL SHAPED
751-6402416-1

Frequently Asked Questions

What is NSN 5330-01-496-9804?

NSN 5330-01-496-9804 is a Gasket, manufactured by Naval Sea Systems Command, classified under FSC 5330 (No Item Name Available). Status: active.

What are the part numbers for NSN 5330-01-496-9804?

NSN 5330-01-496-9804 has 4 cross-referenced part numbers: H553-1503-6 (Electric Boat Corporation Div General Dynamics Electric Boat), 8612484 (Naval Sea Systems Command), 754-7066812-6 (Naval Sea Systems Command), H5531502A-6 (Electric Boat Corporation Div General Dynamics Electric Boat).

What NSN replaces 5330-01-496-9804?

There are 12 known substitutes for 5330-01-496-9804: 5330-00-330-1389, 5330-00-383-7976, 5330-00-674-2055 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 754-7066812-6?

Key specifications for 754-7066812-6: Style Designator: CIRCULAR; Outside Diameter: 31.500 INCHES NOMINAL IN; End Item Identification: SEA VALVE ASSY & DETAILS; Material Document and Classification: MIL-R-15624 CL-III MIL SPEC SINGLE MATERIAL RESPONSE OVERALL. 10 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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