PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

85663AGasket

Hdt Expeditionary Systems Inc · NSN 5330-00-599-3273 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-599-3273 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-599-3273. Primary manufacturer part number: 85663A.
Features
  • Gasket — FSC 5330
  • Cross-Sectional Thickness: 0.062 INCHES NOMINAL IN
  • Aperture Diameter: 2.500 INCHES NOMINAL IN
  • Outside Diameter: 3.000 INCHES NOMINAL IN
  • Cross-Sectional Shape Style: SOLID SINGLE OR COMPOSITION
  • Material: ASBESTOS AND RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OR CORK AND RUBBER POLYSULFIDE CLASS T OR RUBBER NATURAL OR RUBBER SYNTHETIC OR CORK AND RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
  • Material Document and Classification: MIL-G-12803,+1141-A MIL SPEC 1ST MATERIAL RESPONSE OR MIL-G-12803,+2236-A MIL SPEC 2ND MATERIAL RESPONSE OR MIL-G-12803,+2243-A MIL SPEC 3RD MATERIAL RESPONSE OVERALL
  • Style Designator: CIRCULAR
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Asbestos and Rubber Butadiene-Acrylonitrile Class Nbr or Cork and Rubber Polysulfide Class T or Rubber Natural or Rubber Synthetic or Cork and Rubber Butadiene-Acrylonitrile Class Nbr Overall construction
General Description

The Gasket, cataloged under National Stock Number 5330-00-599-3273, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Hdt Expeditionary Systems Inc. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 9 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5330-00-599-3273
Primary Part Number85663A
Item NameGasket
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerHdt Expeditionary Systems Inc
StatusACTIVE
Cross-Sectional Thickness0.062 INCHES NOMINAL IN
Aperture Diameter2.500 INCHES NOMINAL IN
Outside Diameter3.000 INCHES NOMINAL IN
Cross-Sectional Shape StyleSOLID SINGLE OR COMPOSITION
MaterialASBESTOS AND RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OR CORK AND RUBBER POLYSULFIDE CLASS T OR RUBBER NATURAL OR RUBBER SYNTHETIC OR CORK AND RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
Material Document and ClassificationMIL-G-12803,+1141-A MIL SPEC 1ST MATERIAL RESPONSE OR MIL-G-12803,+2236-A MIL SPEC 2ND MATERIAL RESPONSE OR MIL-G-12803,+2243-A MIL SPEC 3RD MATERIAL RESPONSE OVERALL
Style DesignatorCIRCULAR
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5330-00-298-0794599777 INTERCHANGEABLE
Gasket
Chrysler Realty Company Llc Dba Daimler Chrysler
Cross-Reference Index
Part NumberManufacturer
85663A Drs Environmental Systems Inc (USA)
85663A Komatsu American Intl Co (USA)
85663A Davey Compressor Co Div of Keco Industries Inc (USA)
85663A PRIMARY Hdt Expeditionary Systems Inc (USA)
BB27304 Diamond Reo Truck Co (USA)
85663A PRIMARY Brinkley Technology Group Llc Dba Hercules Manufacturing (USA)
5190564 Rolls-Royce Solutions America Inc (USA)
5190564 General Motors Corp (USA)
85663A Hercules Engine Co Inc (USA)
Related Parts
5330-00-298-0794INTERCHANGEABLE
GASKET
599777

Frequently Asked Questions

What is NSN 5330-00-599-3273?

NSN 5330-00-599-3273 is a Gasket, manufactured by Hdt Expeditionary Systems Inc, classified under FSC 5330 (No Item Name Available). Status: active.

What are the part numbers for NSN 5330-00-599-3273?

NSN 5330-00-599-3273 has 9 cross-referenced part numbers: 85663A (Drs Environmental Systems Inc), 85663A (Komatsu American Intl Co), 85663A (Davey Compressor Co Div of Keco Industries Inc), 85663A (Hdt Expeditionary Systems Inc), BB27304 (Diamond Reo Truck Co) and 4 more.

What NSN replaces 5330-00-599-3273?

There is 1 known substitute for 5330-00-599-3273: 5330-00-298-0794. Verify interchangeability with system specifications before substitution.

What are the specifications of 85663A?

Key specifications for 85663A: Cross-Sectional Thickness: 0.062 INCHES NOMINAL IN; Aperture Diameter: 2.500 INCHES NOMINAL IN; Outside Diameter: 3.000 INCHES NOMINAL IN; Cross-Sectional Shape Style: SOLID SINGLE OR COMPOSITION. 7 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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