PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

Y400K21Gasket

Sealcraft Corporation · NSN 5330-00-384-8403 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-384-8403 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-384-8403. Primary manufacturer part number: Y400K21.
Features
  • Gasket — FSC 5330
  • Cross-Sectional Shape Style: SOLID SINGLE OR COMPOSITION
  • Aperture Length: 1.750 INCHES NOMINAL IN
  • Cross-Sectional Thickness: 0.031 INCHES NOMINAL IN
  • Inside Corner Radius: 0.125 INCHES NOMINAL IN
  • Material Document and Classification: MIL-G-12803,NO. +3444-A MIL SPEC ALL MATERIAL RESPONSES OVERALL
  • Aperture Width: 0.938 INCHES NOMINAL IN
  • Hole Diameter: 0.406 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The Gasket, cataloged under National Stock Number 5330-00-384-8403, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Sealcraft Corporation. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 14 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5330-00-384-8403
Primary Part NumberY400K21
Item NameGasket
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerSealcraft Corporation
StatusCANCELLED
Cross-Sectional Shape StyleSOLID SINGLE OR COMPOSITION
Aperture Length1.750 INCHES NOMINAL IN
Cross-Sectional Thickness0.031 INCHES NOMINAL IN
Inside Corner Radius0.125 INCHES NOMINAL IN
Material Document and ClassificationMIL-G-12803,NO. +3444-A MIL SPEC ALL MATERIAL RESPONSES OVERALL
Aperture Width0.938 INCHES NOMINAL IN
Hole Diameter0.406 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5960-00-230-5226 INTERCHANGEABLE
Electron Tube
5315-00-362-75875636 INTERCHANGEABLE
Pin,straight,headed
Prestolite Electric Inc
5310-00-559-0053 INTERCHANGEABLE
Nut,plain,hexagon
1660-00-700-603524771 INTERCHANGEABLE
Gear
Parker Hannifin Corporation Div Aerospace Group Headquarters
5960-00-702-64225636 INTERCHANGEABLE
Electron Tube
Stellant Systems Inc
4730-00-720-1274100 36 H B INTERCHANGEABLE
Clamp,hose
Norma Pennsylvania Inc. Div Breeze Industrial Products
5960-00-754-9774255-0324-000 INTERCHANGEABLE
Electron Tube
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
6130-01-114-73755399728-2 INTERCHANGEABLE
Power Supply
Naval Sea Systems Command
3020-01-135-0277 INTERCHANGEABLE
Slow Speed Gear
6240-01-200-7937 INTERCHANGEABLE
Lamp,incandescent
Cross-Reference Index
Part NumberManufacturer
07-850606 Lift Parts Mfg Co Inc Div of Echlin Mfg Co the (USA)
Y400K21 PRIMARY Sealcraft Corporation (USA)
850607 Clark Equipment Co (USA)
09-5636 Lift Parts Mfg Co Inc Div of Echlin Mfg Co the (USA)
24771 Dana Automotive Systems Group, Llc Dba Dana Sealing Products (USA)
4X46 PRIMARY Bath Iron Works Corporation (USA)
Y400K212 PRIMARY Sealcraft Corporation (USA)
07-850607 Tvh Parts Co. (USA)
Y400K212 Clark Equipment Co (USA)
5636 Mitsubishi Caterpillar Forklift America, Inc (USA)
Y400K212 PRIMARY Mitsubishi Caterpillar Forklift America, Inc (USA)
07-850607 Lift Parts Mfg Co Inc Div of Echlin Mfg Co the (USA)
07-850606 Tvh Parts Co. (USA)
09-5636 Tvh Parts Co. (USA)
Related Parts
5960-00-230-5226INTERCHANGEABLE
ELECTRON TUBE
5315-00-362-7587INTERCHANGEABLE
PIN,STRAIGHT,HEADED
5636
5310-00-559-0053INTERCHANGEABLE
NUT,PLAIN,HEXAGON
1660-00-700-6035INTERCHANGEABLE
GEAR
24771
5960-00-702-6422INTERCHANGEABLE
ELECTRON TUBE
5636
4730-00-720-1274INTERCHANGEABLE
CLAMP,HOSE
100 36 H B
5960-00-754-9774INTERCHANGEABLE
ELECTRON TUBE
255-0324-000
6130-01-114-7375INTERCHANGEABLE
POWER SUPPLY
5399728-2
3020-01-135-0277INTERCHANGEABLE
SLOW SPEED GEAR
6240-01-200-7937INTERCHANGEABLE
LAMP,INCANDESCENT
6530-01-213-5667INTERCHANGEABLE
WRAPPER,STERILIZATION
5636
6695-01-217-7647INTERCHANGEABLE
METER,ILLUMINATION INTENSITY
5-636

Frequently Asked Questions

What is NSN 5330-00-384-8403?

NSN 5330-00-384-8403 is a Gasket, manufactured by Sealcraft Corporation, classified under FSC 5330 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5330-00-384-8403?

NSN 5330-00-384-8403 has 14 cross-referenced part numbers: 07-850606 (Lift Parts Mfg Co Inc Div of Echlin Mfg Co the), Y400K21 (Sealcraft Corporation), 850607 (Clark Equipment Co), 09-5636 (Lift Parts Mfg Co Inc Div of Echlin Mfg Co the), 24771 (Dana Automotive Systems Group, Llc Dba Dana Sealing Products) and 9 more.

What NSN replaces 5330-00-384-8403?

There are 12 known substitutes for 5330-00-384-8403: 5960-00-230-5226, 5315-00-362-7587, 5310-00-559-0053 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of Y400K21?

Key specifications for Y400K21: Cross-Sectional Shape Style: SOLID SINGLE OR COMPOSITION; Aperture Length: 1.750 INCHES NOMINAL IN; Cross-Sectional Thickness: 0.031 INCHES NOMINAL IN; Overall Width: 1.688 INCHES NOMINAL IN. 9 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5330-00-384-8403 still in active supply?

NSN 5330-00-384-8403 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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