PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

121156Gasket

Parker-Hannifin Corporation Dba Pneutronics Div Composite Sealing Systems Division · NSN 5330-00-559-2889 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-559-2889 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-559-2889. Primary manufacturer part number: 121156.
Features
  • Gasket — FSC 5330
  • Cross-Sectional Shape Style: METAL AND SYNTHETIC RUBBER
  • Bolt Circle Diameter: 4.375 INCHES NOMINAL IN
  • Cross-Sectional Thickness: 0.120 INCHES NOMINAL IN
  • FSC Application Data: FUEL TANK,AIRCRAFT
  • Surface Treatment: ANODIZE OVERALL
  • Outside Corner Radius: 0.380 INCHES NOMINAL IN
  • Gage Ring Thickness: 0.080 INCHES NOMINAL IN
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Aluminum Alloy 6061 and Rubber Synthetic Overall construction
General Description

The Gasket, cataloged under National Stock Number 5330-00-559-2889, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Parker-Hannifin Corporation Dba Pneutronics Div Composite Sealing Systems Division. Government technical data includes 14 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5330-00-559-2889
Primary Part Number121156
Item NameGasket
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerParker-Hannifin Corporation Dba Pneutronics Div Composite Sealing Systems Division
StatusACTIVE
Cross-Sectional Shape StyleMETAL AND SYNTHETIC RUBBER
Bolt Circle Diameter4.375 INCHES NOMINAL IN
Cross-Sectional Thickness0.120 INCHES NOMINAL IN
FSC Application DataFUEL TANK,AIRCRAFT
Surface TreatmentANODIZE OVERALL
Outside Corner Radius0.380 INCHES NOMINAL IN
Gage Ring Thickness0.080 INCHES NOMINAL IN
Bolt Hole Quantity6
Style DesignatorPOLYGON
Surface Treatment Document and ClassificationMIL-A-8625,TY 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
MaterialALUMINUM ALLOY 6061 AND RUBBER SYNTHETIC OVERALL
Aperture Diameter3.125 INCHES NOMINAL IN
Hole Diameter0.281 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
Peripheral Flat Quantity6
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
6115-00-629-6116 INTERCHANGEABLE
Armature,rotor,gene
Cross-Reference Index
Part NumberManufacturer
121156 PRIMARY Parker-Hannifin Corporation Dba Pneutronics Div Composite Sealing Systems Division (USA)
Related Parts
6115-00-629-6116INTERCHANGEABLE
ARMATURE,ROTOR,GENE

Frequently Asked Questions

What is NSN 5330-00-559-2889?

NSN 5330-00-559-2889 is a Gasket, manufactured by Parker-Hannifin Corporation Dba Pneutronics Div Composite Sealing Systems Division, classified under FSC 5330 (No Item Name Available). Status: active.

What are the part numbers for NSN 5330-00-559-2889?

NSN 5330-00-559-2889 has 1 cross-referenced part number: 121156 (Parker-Hannifin Corporation Dba Pneutronics Div Composite Sealing Systems Division).

What NSN replaces 5330-00-559-2889?

There is 1 known substitute for 5330-00-559-2889: 6115-00-629-6116. Verify interchangeability with system specifications before substitution.

What are the specifications of 121156?

Key specifications for 121156: Cross-Sectional Shape Style: METAL AND SYNTHETIC RUBBER; Bolt Circle Diameter: 4.375 INCHES NOMINAL IN; Overall Width: 4.500 INCHES NOMINAL IN; Cross-Sectional Thickness: 0.120 INCHES NOMINAL IN. 16 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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