PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2146879Boot,dust and Moisture Seal

Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier · NSN 5340-00-830-6875 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-00-830-6875 — this item is cataloged by the U.S. Government under National Stock Number 5340-00-830-6875. Primary manufacturer part number: 2146879.
Features
  • Boot,dust and Moisture Seal — FSC 5340
  • Material: RUBBER BODY
  • FSC Application Data: MOUNTS,GUIDED MISSILE LAUNCHER
  • Style Designator: THRU-HOLE
  • Opening Inside Diameter: 0.656 INCHES NOMINAL IN
  • Material Document and Classification: MIL-R-3065,TYPE S,CLASS SC,GRADE 515 MIL SPEC SINGLE MATERIAL RESPONSE BODY
  • Body Outside Diameter: 1.435 INCHES NOMINAL IN
  • 1 verified cross-reference
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Body construction
General Description

The Boot,dust and Moisture Seal, cataloged under National Stock Number 5340-00-830-6875, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 6 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. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5340-00-830-6875
Primary Part Number2146879
Item NameBoot,dust and Moisture Seal
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerNavair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
StatusACTIVE
MaterialRUBBER BODY
FSC Application DataMOUNTS,GUIDED MISSILE LAUNCHER
Style DesignatorTHRU-HOLE
Opening Inside Diameter0.656 INCHES NOMINAL IN
Material Document and ClassificationMIL-R-3065,TYPE S,CLASS SC,GRADE 515 MIL SPEC SINGLE MATERIAL RESPONSE BODY
Body Outside Diameter1.435 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssueEA
Verified Substitutes 1
2530-00-773-543368347H INTERCHANGEABLE
Cup,hydraulic Brake Cylinder
Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/
Cross-Reference Index
Part NumberManufacturer
2146879 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
Related Parts
2530-00-773-5433INTERCHANGEABLE
CUP,HYDRAULIC BRAKE CYLINDER
68347H

Frequently Asked Questions

What is NSN 5340-00-830-6875?

NSN 5340-00-830-6875 is a Boot,dust and Moisture Seal, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5340 (No Item Name Available). Status: active.

What are the part numbers for NSN 5340-00-830-6875?

NSN 5340-00-830-6875 has 1 cross-referenced part number: 2146879 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).

What NSN replaces 5340-00-830-6875?

There is 1 known substitute for 5340-00-830-6875: 2530-00-773-5433. Verify interchangeability with system specifications before substitution.

What are the specifications of 2146879?

Key specifications for 2146879: Material: RUBBER BODY; Overall Height: 2.625 INCHES NOMINAL IN; FSC Application Data: MOUNTS,GUIDED MISSILE LAUNCHER; Style Designator: THRU-HOLE. 7 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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