PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3B1688Gasket

Caterpillar Inc Div Caterpillar Defense · NSN 5330-00-641-4105 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-641-4105 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-641-4105. Primary manufacturer part number: 3B1688.
Features
  • Gasket — FSC 5330
  • Cross-Sectional Shape Style: SOLID SINGLE OR COMPOSITION
  • Outside Edge to Bolt Hole Center Distance Along Length: 0.625 INCHES NOMINAL IN
  • Inside Corner Inverted Radius: 0.375 INCHES NOMINAL IN
  • Aperture Width: 2.750 INCHES NOMINAL IN
  • Outside Edge to Bolt Hole Center Distance Along Width: 0.375 INCHES NOMINAL IN
  • Bolt Hole Quantity: 4
  • Style Designator: NON-CIRCULAR
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Cork Overall construction
General Description

The Gasket, cataloged under National Stock Number 5330-00-641-4105, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5330-00-641-4105
Primary Part Number3B1688
Item NameGasket
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerCaterpillar Inc Div Caterpillar Defense
StatusCANCELLED
Cross-Sectional Shape StyleSOLID SINGLE OR COMPOSITION
Outside Edge to Bolt Hole Center Distance Along Length0.625 INCHES NOMINAL IN
Inside Corner Inverted Radius0.375 INCHES NOMINAL IN
Aperture Width2.750 INCHES NOMINAL IN
Outside Edge to Bolt Hole Center Distance Along Width0.375 INCHES NOMINAL IN
Bolt Hole Quantity4
Style DesignatorNON-CIRCULAR
MaterialCORK OVERALL
Cross-Sectional Thickness0.062 INCHES NOMINAL IN
Hole Diameter0.406 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
Aperture Length3.750 INCHES NOMINAL IN
Outside Corner Radius0.375 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
5330-00-189-189735535 INTERCHANGEABLE
Gasket
Dressta North America Ltd
5120-00-223-6940 INTERCHANGEABLE
Extractor,screw
5962-01-179-8088BUS-63101-606 INTERCHANGEABLE
Microcircuit,linear
Data Device Corp Dba Beta Transformer Technology
4820-01-348-442435535 INTERCHANGEABLE
Parts Kit,valve
Allied Systems Company Dba Allied Systems Co
Cross-Reference Index
Part NumberManufacturer
3B1688 PRIMARY Caterpillar Inc Div Caterpillar Defense (USA)
35535 PRIMARY Dana Automotive Systems Group, Llc Dba Dana Sealing Products (USA)
Related Parts
5330-00-189-1897INTERCHANGEABLE
GASKET
35535
5120-00-223-6940INTERCHANGEABLE
EXTRACTOR,SCREW
5962-01-179-8088INTERCHANGEABLE
MICROCIRCUIT,LINEAR
BUS-63101-606
4820-01-348-4424INTERCHANGEABLE
PARTS KIT,VALVE
35535

Frequently Asked Questions

What is NSN 5330-00-641-4105?

NSN 5330-00-641-4105 is a Gasket, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 5330 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5330-00-641-4105?

NSN 5330-00-641-4105 has 2 cross-referenced part numbers: 3B1688 (Caterpillar Inc Div Caterpillar Defense), 35535 (Dana Automotive Systems Group, Llc Dba Dana Sealing Products).

What NSN replaces 5330-00-641-4105?

There are 4 known substitutes for 5330-00-641-4105: 5330-00-189-1897, 5120-00-223-6940, 5962-01-179-8088 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3B1688?

Key specifications for 3B1688: Cross-Sectional Shape Style: SOLID SINGLE OR COMPOSITION; Overall Width: 3.500 INCHES NOMINAL IN; Outside Edge to Bolt Hole Center Distance Along Length: 0.625 INCHES NOMINAL IN; Inside Corner Inverted Radius: 0.375 INCHES NOMINAL IN. 14 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5330-00-641-4105 still in active supply?

NSN 5330-00-641-4105 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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