PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21604Gear Assy

Safe Flight Instrument, Llc · NSN 6340-00-717-2335 · FSC 6340 · No Item Name Available
Verified by PartsTable
NSN 6340-00-717-2335 — this item is cataloged by the U.S. Government under National Stock Number 6340-00-717-2335. Primary manufacturer part number: 21604.
Features
  • Gear Assy — FSC 6340
  • 1 verified cross-reference
  • Primary manufacturer: Safe Flight Instrument, Llc
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
General Description

The Gear Assy, cataloged under National Stock Number 6340-00-717-2335, is classified within Federal Supply Class 6340 (No Item Name Available) of the Alarm, Signal, and Security Detection Systems group. The primary manufacturer of record is Safe Flight Instrument, Llc. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameGear Assy
FSC / FSG6340 — No Item Name Available (FSG 63)
ManufacturersSafe Flight Instrument, Llc (CAGE 83326)
Technical Specifications
ParameterValue
NSN6340-00-717-2335
Primary Part Number21604
Item NameGear Assy
FSC / FSG6340 / 63 — No Item Name Available
ManufacturerSafe Flight Instrument, Llc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
4330-00-336-556799133014 INTERCHANGEABLE
Plate,housing
Alfa Laval Inc
2835-00-659-054421604 INTERCHANGEABLE
Line Assembly,drain
Alamo Aircraft, Ltd.
5330-01-437-8806 INTERCHANGEABLE
Packing with Retainer
5365-01-508-380021604 INTERCHANGEABLE
Spacer,sleeve
Parker Hannifin Corporation Div Hydraulic Systems Division
Cross-Reference Index
Part NumberManufacturer
21604 PRIMARY Safe Flight Instrument, Llc (USA)
Related Parts
4330-00-336-5567INTERCHANGEABLE
PLATE,HOUSING
99133014
2835-00-659-0544INTERCHANGEABLE
LINE ASSEMBLY,DRAIN
21604
5330-01-437-8806INTERCHANGEABLE
PACKING WITH RETAINER
5365-01-508-3800INTERCHANGEABLE
SPACER,SLEEVE
21604

Frequently Asked Questions

What is NSN 6340-00-717-2335?

NSN 6340-00-717-2335 is a Gear Assy, manufactured by Safe Flight Instrument, Llc, classified under FSC 6340 (No Item Name Available). Status: active.

What are the part numbers for NSN 6340-00-717-2335?

NSN 6340-00-717-2335 has 1 cross-referenced part number: 21604 (Safe Flight Instrument, Llc).

What NSN replaces 6340-00-717-2335?

There are 4 known substitutes for 6340-00-717-2335: 4330-00-336-5567, 2835-00-659-0544, 5330-01-437-8806 and 1 more. Verify interchangeability with system specifications before substitution.

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