PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6657-1Boot,dust and Moisture Seal

Triumph Controls, Llc Dba Triumph Controls, Llc · NSN 5340-00-703-4924 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-00-703-4924 — this item is cataloged by the U.S. Government under National Stock Number 5340-00-703-4924. Primary manufacturer part number: 6657-1.
Features
  • Boot,dust and Moisture Seal — FSC 5340
  • 3 verified cross-references
  • Primary manufacturer: Triumph Controls, Llc Dba Triumph Controls, Llc
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The Boot,dust and Moisture Seal, cataloged under National Stock Number 5340-00-703-4924, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Triumph Controls, Llc Dba Triumph Controls, Llc. This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Catalog Facts
Item NameBoot,dust and Moisture Seal
FSC / FSG5340 — No Item Name Available (FSG 53)
ManufacturersSatair A/s (CAGE R1120); Triumph Controls, Llc Dba Triumph Controls, Llc (CAGE 78710)
Technical Specifications
ParameterValue
NSN5340-00-703-4924
Primary Part Number6657-1
Item NameBoot,dust and Moisture Seal
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerTriumph Controls, Llc Dba Triumph Controls, Llc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssueEA
Verified Substitutes 2
2915-00-618-58256-657-1 INTERCHANGEABLE
Valve,dual Shutoff,tank-Mounted
Parker Hannifin Corporation Div Aerospace Group Headquarters
4820-01-320-2685 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Cross-Reference Index
Part NumberManufacturer
B6657-1 Satair A/s (DNK)
B6657-1 Triumph Controls, Llc Dba Triumph Controls, Llc (USA)
6657-1 PRIMARY Triumph Controls, Llc Dba Triumph Controls, Llc (USA)
Related Parts
2915-00-618-5825INTERCHANGEABLE
VALVE,DUAL SHUTOFF,TANK-MOUNTED
6-657-1
4820-01-320-2685INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE

Frequently Asked Questions

What is NSN 5340-00-703-4924?

NSN 5340-00-703-4924 is a Boot,dust and Moisture Seal, manufactured by Triumph Controls, Llc Dba Triumph Controls, Llc, classified under FSC 5340 (No Item Name Available). Status: active.

What are the part numbers for NSN 5340-00-703-4924?

NSN 5340-00-703-4924 has 3 cross-referenced part numbers: B6657-1 (Satair A/s), B6657-1 (Triumph Controls, Llc Dba Triumph Controls, Llc), 6657-1 (Triumph Controls, Llc Dba Triumph Controls, Llc).

What NSN replaces 5340-00-703-4924?

There are 2 known substitutes for 5340-00-703-4924: 2915-00-618-5825, 4820-01-320-2685. Verify interchangeability with system specifications before substitution.

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