PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5645-2Boot,dust and Moisture Seal

Flexco, Inc · NSN 5340-00-165-4031 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-00-165-4031 — this item is cataloged by the U.S. Government under National Stock Number 5340-00-165-4031. Primary manufacturer part number: 5645-2.
Features
  • Boot,dust and Moisture Seal — FSC 5340
  • Material Document and Classification: MIL-S-6855,CLASS 2,GRADE 40 MIL SPEC SINGLE MATERIAL RESPONSE BODY
  • Material: RUBBER SYNTHETIC BODY
  • 3 verified cross-references
  • Primary manufacturer: Flexco, Inc
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Synthetic Body construction
General Description

The Boot,dust and Moisture Seal, cataloged under National Stock Number 5340-00-165-4031, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Flexco, Inc. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5340-00-165-4031
Primary Part Number5645-2
Item NameBoot,dust and Moisture Seal
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerFlexco, Inc
StatusACTIVE
Material Document and ClassificationMIL-S-6855,CLASS 2,GRADE 40 MIL SPEC SINGLE MATERIAL RESPONSE BODY
MaterialRUBBER SYNTHETIC BODY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssueEA
Verified Substitutes 3
3110-00-076-8799526712 INTERCHANGEABLE
Bearing,ball,thrust
Mpb Corp Div Timken Super Precision
5310-00-185-6485 INTERCHANGEABLE
Nut,plain,round
5136-00-580-7335310320 INTERCHANGEABLE
Tap,thread Cutting
Stanley Tools Div of Stanley Works
Cross-Reference Index
Part NumberManufacturer
206-062-832-2 Bell Textron Inc (USA)
5645-2 PRIMARY Flexco, Inc (USA)
5-2671-2 Immel Engineering and Development Co (USA)
Related Parts
3110-00-076-8799INTERCHANGEABLE
BEARING,BALL,THRUST
526712
5310-00-185-6485INTERCHANGEABLE
NUT,PLAIN,ROUND
5136-00-580-7335INTERCHANGEABLE
TAP,THREAD CUTTING
310320

Frequently Asked Questions

What is NSN 5340-00-165-4031?

NSN 5340-00-165-4031 is a Boot,dust and Moisture Seal, manufactured by Flexco, Inc, classified under FSC 5340 (No Item Name Available). Status: active.

What are the part numbers for NSN 5340-00-165-4031?

NSN 5340-00-165-4031 has 3 cross-referenced part numbers: 206-062-832-2 (Bell Textron Inc), 5645-2 (Flexco, Inc), 5-2671-2 (Immel Engineering and Development Co).

What NSN replaces 5340-00-165-4031?

There are 3 known substitutes for 5340-00-165-4031: 3110-00-076-8799, 5310-00-185-6485, 5136-00-580-7335. Verify interchangeability with system specifications before substitution.

What are the specifications of 5645-2?

Key specifications for 5645-2: Material Document and Classification: MIL-S-6855,CLASS 2,GRADE 40 MIL SPEC SINGLE MATERIAL RESPONSE BODY; Material: RUBBER SYNTHETIC BODY. 2 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com