PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21511Gasket

Curtiss-Wright Controls, Inc. Div Actuation Division · NSN 5330-00-291-7430 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-291-7430 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-291-7430. Primary manufacturer part number: 21511.
Features
  • Gasket — FSC 5330
  • Outside Corner Radius: 0.250 INCHES NOMINAL IN
  • Aperture Diameter: 1.266 INCHES NOMINAL IN
  • Side Radius From Gasket Center: 0.875 INCHES NOMINAL IN
  • Material Document and Classification: MIL-G-12803,NO. G-1122 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Style Designator: NON-CIRCULAR
  • Bolt Circle Diameter: 1.750 INCHES NOMINAL IN
  • Cross-Sectional Thickness: 0.016 INCHES NOMINAL IN
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 5330-00-291-7430, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Curtiss-Wright Controls, Inc. Div Actuation Division. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5330-00-291-7430
Primary Part Number21511
Item NameGasket
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerCurtiss-Wright Controls, Inc. Div Actuation Division
StatusACTIVE
Outside Corner Radius0.250 INCHES NOMINAL IN
Aperture Diameter1.266 INCHES NOMINAL IN
Side Radius From Gasket Center0.875 INCHES NOMINAL IN
Material Document and ClassificationMIL-G-12803,NO. G-1122 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Style DesignatorNON-CIRCULAR
Bolt Circle Diameter1.750 INCHES NOMINAL IN
Cross-Sectional Thickness0.016 INCHES NOMINAL IN
Hole Diameter0.281 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
MaterialRUBBER SYNTHETIC OVERALL
Bolt Hole Quantity2
Cross-Sectional Shape StyleSOLID SINGLE OR COMPOSITION
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
3110-00-100-62161576-1066 INTERCHANGEABLE
Ball,bearing
Raytheon Company Dba Raytheon
3020-00-429-98067000C09 INTERCHANGEABLE
Sprocket Wheel
Terex Usa, Llc Dba Terex Equipment Services
5950-00-575-0839215-11 INTERCHANGEABLE
Coil,radio Frequency
Wilco Corp
1377-00-596-9673200340 INTERCHANGEABLE
Cartridge,aircraft Fire Extingui
Applied Energy Technology Corp
5930-00-723-2741 INTERCHANGEABLE
Switch Assembly
5930-00-871-9008212-8719-1 INTERCHANGEABLE
Switch,rotary
Cts Corp Electromechanical Div
4730-01-268-8266200340 INTERCHANGEABLE
Plug,pipe
Dana Off Highway Products, Llc
5331-01-497-3441 INTERCHANGEABLE
O-Ring
7025-01-624-547721-511 INTERCHANGEABLE
Support,display Unit
Hii Unmanned Systems, Inc
Cross-Reference Index
Part NumberManufacturer
21511 PRIMARY Curtiss-Wright Controls, Inc. Div Actuation Division (USA)
200340 PRIMARY Sealcraft Corporation (USA)
21511 Curtiss-Wright Corp (USA)
Related Parts
3110-00-100-6216INTERCHANGEABLE
BALL,BEARING
1576-1066
3020-00-429-9806INTERCHANGEABLE
SPROCKET WHEEL
7000C09
5950-00-575-0839INTERCHANGEABLE
COIL,RADIO FREQUENCY
215-11
1377-00-596-9673INTERCHANGEABLE
CARTRIDGE,AIRCRAFT FIRE EXTINGUI
200340
5930-00-723-2741INTERCHANGEABLE
SWITCH ASSEMBLY
5930-00-871-9008INTERCHANGEABLE
SWITCH,ROTARY
212-8719-1
4730-01-268-8266INTERCHANGEABLE
PLUG,PIPE
200340
5331-01-497-3441INTERCHANGEABLE
O-RING
7025-01-624-5477INTERCHANGEABLE
SUPPORT,DISPLAY UNIT
21-511

Frequently Asked Questions

What is NSN 5330-00-291-7430?

NSN 5330-00-291-7430 is a Gasket, manufactured by Curtiss-Wright Controls, Inc. Div Actuation Division, classified under FSC 5330 (No Item Name Available). Status: active.

What are the part numbers for NSN 5330-00-291-7430?

NSN 5330-00-291-7430 has 3 cross-referenced part numbers: 21511 (Curtiss-Wright Controls, Inc. Div Actuation Division), 200340 (Sealcraft Corporation), 21511 (Curtiss-Wright Corp).

What NSN replaces 5330-00-291-7430?

There are 9 known substitutes for 5330-00-291-7430: 3110-00-100-6216, 3020-00-429-9806, 5950-00-575-0839 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21511?

Key specifications for 21511: Outside Corner Radius: 0.250 INCHES NOMINAL IN; Aperture Diameter: 1.266 INCHES NOMINAL IN; Side Radius From Gasket Center: 0.875 INCHES NOMINAL IN; Material Document and Classification: MIL-G-12803,NO. G-1122 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL. 12 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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