PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

660355-2Boot,dust and Moisture Seal

Bae Systems Information and Electronic Systems Integration Inc. · NSN 5340-00-841-1284 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-00-841-1284 — this item is cataloged by the U.S. Government under National Stock Number 5340-00-841-1284. Primary manufacturer part number: 660355-2.
Features
  • Boot,dust and Moisture Seal — FSC 5340
  • Thread Length: 0.175 INCHES NOMINAL IN
  • Base Thread Location: INTERNAL
  • Hazardous Locations/environmental Protection: DUSTTIGHT-NEMA TYPE 5 AND WATERTIGHT, MIL-B-5423
  • Width Across Flats: 0.500 INCHES NOMINAL IN
  • Thread Quantity Per Inch: 32
  • Nominal Thread Size: 0.375 INCHES IN
  • Thread Series: UNEF
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Silicone Body construction
General Description

The Boot,dust and Moisture Seal, cataloged under National Stock Number 5340-00-841-1284, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Bae Systems Information and Electronic Systems Integration Inc.. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5340-00-841-1284
Primary Part Number660355-2
Item NameBoot,dust and Moisture Seal
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerBae Systems Information and Electronic Systems Integration Inc.
StatusACTIVE
Thread Length0.175 INCHES NOMINAL IN
Base Thread LocationINTERNAL
Hazardous Locations/environmental ProtectionDUSTTIGHT-NEMA TYPE 5 AND WATERTIGHT, MIL-B-5423
Width Across Flats0.500 INCHES NOMINAL IN
Thread Quantity Per Inch32
Nominal Thread Size0.375 INCHES IN
Thread SeriesUNEF
MaterialRUBBER SILICONE BODY
Thread Class2B
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
Boot,dust and Moisture Seal
5340-00-535-9720 INTERCHANGEABLE
Boot,dust and Moisture Seal
5340-00-682-0577 INTERCHANGEABLE
Boot,dust and Moisture Seal
5340-00-755-3645 INTERCHANGEABLE
Boot,dust and Moisture Seal
5930-00-823-0482 INTERCHANGEABLE
Boot,dust and Moisture Seal
5930-00-933-7075 INTERCHANGEABLE
Boot,dust and Moisture Seal
5930-01-041-3873 INTERCHANGEABLE
Boot,dust and Moisture Seal
5930-01-412-6919 INTERCHANGEABLE
Boot,dust and Moisture Seal
Cross-Reference Index
Part NumberManufacturer
MIL-C-5423 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-B-5423 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
660355-2 PRIMARY Bae Systems Information and Electronic Systems Integration Inc. (USA)
Related Parts
5340-01-097-9929SUCCESSOR
BOOT,DUST AND MOISTURE SEAL
5340-00-535-9720INTERCHANGEABLE
BOOT,DUST AND MOISTURE SEAL
5340-00-682-0577INTERCHANGEABLE
BOOT,DUST AND MOISTURE SEAL
5340-00-755-3645INTERCHANGEABLE
BOOT,DUST AND MOISTURE SEAL
5930-00-823-0482INTERCHANGEABLE
BOOT,DUST AND MOISTURE SEAL
5930-00-933-7075INTERCHANGEABLE
BOOT,DUST AND MOISTURE SEAL
5930-01-041-3873INTERCHANGEABLE
BOOT,DUST AND MOISTURE SEAL
5930-01-412-6919INTERCHANGEABLE
BOOT,DUST AND MOISTURE SEAL

Frequently Asked Questions

What is NSN 5340-00-841-1284?

NSN 5340-00-841-1284 is a Boot,dust and Moisture Seal, manufactured by Bae Systems Information and Electronic Systems Integration Inc., classified under FSC 5340 (No Item Name Available). Status: active.

What are the part numbers for NSN 5340-00-841-1284?

NSN 5340-00-841-1284 has 3 cross-referenced part numbers: MIL-C-5423 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-B-5423 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 660355-2 (Bae Systems Information and Electronic Systems Integration Inc.).

What NSN replaces 5340-00-841-1284?

There are 8 known substitutes for 5340-00-841-1284: 5340-01-097-9929, 5340-00-535-9720, 5340-00-682-0577 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 660355-2?

Key specifications for 660355-2: Thread Length: 0.175 INCHES NOMINAL IN; Overall Height: 0.243 INCHES NOMINAL IN; Base Thread Location: INTERNAL; Hazardous Locations/environmental Protection: DUSTTIGHT-NEMA TYPE 5 AND WATERTIGHT, MIL-B-5423. 10 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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