PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1-20300Gasket

Mission Systems Davenport Inc. · NSN 5330-00-111-3066 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-111-3066 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-111-3066. Primary manufacturer part number: 1-20300.
Features
  • Gasket — FSC 5330
  • Temp Rating: -65.0 FAHRENHEIT AND 160.0 FAHRENHEIT DEGF
  • Cross-Sectional Thickness: 0.060 INCHES NOMINAL IN
  • Outside Diameter: 5.470 INCHES MINIMUM AND 5.530 INCHES MAXIMUM IN
  • Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
  • Bolt Circle Diameter: 4.740 INCHES MINIMUM AND 4.760 INCHES MAXIMUM IN
  • Aperture Diameter: 3.970 INCHES MINIMUM AND 4.030 INCHES MAXIMUM IN
  • Cross-Sectional Shape Style: SOLID SINGLE OR COMPOSITION
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Butadiene-Acrylonitrile Class Nbr Overall construction
General Description

The Gasket, cataloged under National Stock Number 5330-00-111-3066, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Mission Systems Davenport Inc.. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5330-00-111-3066
Primary Part Number1-20300
Item NameGasket
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerMission Systems Davenport Inc.
StatusACTIVE
Temp Rating-65.0 FAHRENHEIT AND 160.0 FAHRENHEIT DEGF
Cross-Sectional Thickness0.060 INCHES NOMINAL IN
Outside Diameter5.470 INCHES MINIMUM AND 5.530 INCHES MAXIMUM IN
MaterialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
Bolt Circle Diameter4.740 INCHES MINIMUM AND 4.760 INCHES MAXIMUM IN
Aperture Diameter3.970 INCHES MINIMUM AND 4.030 INCHES MAXIMUM IN
Cross-Sectional Shape StyleSOLID SINGLE OR COMPOSITION
Hole Diameter0.188 INCHES MINIMUM AND 0.198 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN
Elongation Percentage200 MAXIMUM
Hardness Rating60.0 SHORE DUROMETER A MINIMUM AND 70.0 SHORE DUROMETER A MAXIMUM OVERALL
Material Document and ClassificationMIL-P-5315 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5310-00-058-3730824637-2 INTERCHANGEABLE
Washer,lock
Lockheed Martin Corporation Div Rms - Mitchel Field
5310-00-676-8573N404P9C6 INTERCHANGEABLE
Washer,lock
Lockheed Martin Corporation Div Rms
5310-00-930-8787 INTERCHANGEABLE
Washer,lock
1560-00-943-500265206-01009-105 INTERCHANGEABLE
Windshield Panel,aircraft
Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp
5120-01-210-5212 INTERCHANGEABLE
Pliers,retaining Ring
5315-01-222-7078 INTERCHANGEABLE
Screen
5985-01-544-1919120300 INTERCHANGEABLE
Antenna Assembly
Cpi Satcom & Antenna Technologies Inc
6515-01-599-3224120300 INTERCHANGEABLE
Nail,bone
Sign Fracture Care International Dba Sign
Cross-Reference Index
Part NumberManufacturer
1-20300 PRIMARY Mission Systems Davenport Inc. (USA)
Related Parts
5310-00-058-3730INTERCHANGEABLE
WASHER,LOCK
824637-2
5310-00-676-8573INTERCHANGEABLE
WASHER,LOCK
N404P9C6
5310-00-930-8787INTERCHANGEABLE
WASHER,LOCK
1560-00-943-5002INTERCHANGEABLE
WINDSHIELD PANEL,AIRCRAFT
65206-01009-105
5120-01-210-5212INTERCHANGEABLE
PLIERS,RETAINING RING
5315-01-222-7078INTERCHANGEABLE
SCREEN
5985-01-544-1919INTERCHANGEABLE
ANTENNA ASSEMBLY
120300
6515-01-599-3224INTERCHANGEABLE
NAIL,BONE
120300

Frequently Asked Questions

What is NSN 5330-00-111-3066?

NSN 5330-00-111-3066 is a Gasket, manufactured by Mission Systems Davenport Inc., classified under FSC 5330 (No Item Name Available). Status: active.

What are the part numbers for NSN 5330-00-111-3066?

NSN 5330-00-111-3066 has 1 cross-referenced part number: 1-20300 (Mission Systems Davenport Inc.).

What NSN replaces 5330-00-111-3066?

There are 8 known substitutes for 5330-00-111-3066: 5310-00-058-3730, 5310-00-676-8573, 5310-00-930-8787 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1-20300?

Key specifications for 1-20300: Temp Rating: -65.0 FAHRENHEIT AND 160.0 FAHRENHEIT DEGF; Cross-Sectional Thickness: 0.060 INCHES NOMINAL IN; Outside Diameter: 5.470 INCHES MINIMUM AND 5.530 INCHES MAXIMUM IN; Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL. 11 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com