PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21525Gasket

Hydro-Aire Aerospace Corp · NSN 5330-00-438-3950 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-438-3950 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-438-3950. Primary manufacturer part number: 21525.
Features
  • Gasket — FSC 5330
  • Outside Edge to Bolt Hole Center Distance Along Width: 0.328 INCHES NOMINAL IN
  • Center to Center Distance Between Bolt Holes Along Width: 2.188 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
  • Cross-Sectional Shape Style: SOLID SINGLE OR COMPOSITION
  • Material Document and Classification: AMS 3200 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Center to Center Distance Between Bolt Holes Along Length: 2.188 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
  • Cross-Sectional Thickness: 0.031 INCHES NOMINAL IN
  • Outside Edge to Bolt Hole Center Distance Along Length: 0.328 INCHES NOMINAL IN
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 5330-00-438-3950, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Hydro-Aire Aerospace Corp. 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5330-00-438-3950
Primary Part Number21525
Item NameGasket
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerHydro-Aire Aerospace Corp
StatusACTIVE
Outside Edge to Bolt Hole Center Distance Along Width0.328 INCHES NOMINAL IN
Center to Center Distance Between Bolt Holes Along Width2.188 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
Cross-Sectional Shape StyleSOLID SINGLE OR COMPOSITION
Material Document and ClassificationAMS 3200 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Center to Center Distance Between Bolt Holes Along Length2.188 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
Cross-Sectional Thickness0.031 INCHES NOMINAL IN
Outside Edge to Bolt Hole Center Distance Along Length0.328 INCHES NOMINAL IN
Outside Corner Radius0.156 INCHES NOMINAL IN
Hole Diameter0.219 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
Hardness Rating55.0 SHORE DUROMETER A MINIMUM AND 65.0 SHORE DUROMETER A MAXIMUM OVERALL
MaterialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5905-00-108-6014 INTERCHANGEABLE
Resistor,variable,wire Wound,non
2530-00-528-9090121-501 INTERCHANGEABLE
Brake Drum
Jaidinger Manufacturing Co Inc Dba Jaidinger Manufacturing Co Inc
1680-00-560-796621525 INTERCHANGEABLE
Control Assembly,push-Pull
Transdigm Inc
Cross-Reference Index
Part NumberManufacturer
21525 PRIMARY Hydro-Aire Aerospace Corp (USA)
Related Parts
5905-00-108-6014INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,NON
2530-00-528-9090INTERCHANGEABLE
BRAKE DRUM
121-501
1680-00-560-7966INTERCHANGEABLE
CONTROL ASSEMBLY,PUSH-PULL
21525

Frequently Asked Questions

What is NSN 5330-00-438-3950?

NSN 5330-00-438-3950 is a Gasket, manufactured by Hydro-Aire Aerospace Corp, classified under FSC 5330 (No Item Name Available). Status: active.

What are the part numbers for NSN 5330-00-438-3950?

NSN 5330-00-438-3950 has 1 cross-referenced part number: 21525 (Hydro-Aire Aerospace Corp).

What NSN replaces 5330-00-438-3950?

There are 3 known substitutes for 5330-00-438-3950: 5905-00-108-6014, 2530-00-528-9090, 1680-00-560-7966. Verify interchangeability with system specifications before substitution.

What are the specifications of 21525?

Key specifications for 21525: Outside Edge to Bolt Hole Center Distance Along Width: 0.328 INCHES NOMINAL IN; Center to Center Distance Between Bolt Holes Along Width: 2.188 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN; Cross-Sectional Shape Style: SOLID SINGLE OR COMPOSITION; Overall Width: 2.844 INCHES NOMINAL IN. 13 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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