PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

303821Indicator,sight,liquid

Mega Corp. · NSN 6680-01-589-1791 · FSC 6680 · No Item Name Available
Verified by PartsTable
NSN 6680-01-589-1791 — this item is cataloged by the U.S. Government under National Stock Number 6680-01-589-1791. Primary manufacturer part number: 303821.
Features
  • Indicator,sight,liquid — FSC 6680
  • 1 verified cross-reference
  • Primary manufacturer: Mega Corp.
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Indicator,sight,liquid, cataloged under National Stock Number 6680-01-589-1791, is classified within Federal Supply Class 6680 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Mega Corp.. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameIndicator,sight,liquid
FSC / FSG6680 — No Item Name Available (FSG 66)
ManufacturersMega Corp. (CAGE 1BW31)
Technical Specifications
ParameterValue
NSN6680-01-589-1791
Primary Part Number303821
Item NameIndicator,sight,liquid
FSC / FSG6680 / 66 — No Item Name Available
ManufacturerMega Corp.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
1680-00-397-491930382-1 INTERCHANGEABLE
Housing,actuator
Honeywell International Inc. Div Aerospace - Torrance
5935-01-039-7072TRU-6152 INTERCHANGEABLE
Connector,plug,electrical
Winchester Interconnect Rf Corporation
5995-01-652-723830382-1 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Science Applications International Corporation
Cross-Reference Index
Part NumberManufacturer
303821 PRIMARY Mega Corp. (USA)
Related Parts
1680-00-397-4919INTERCHANGEABLE
HOUSING,ACTUATOR
30382-1
5935-01-039-7072INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
TRU-6152
5995-01-652-7238INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
30382-1

Frequently Asked Questions

What is NSN 6680-01-589-1791?

NSN 6680-01-589-1791 is a Indicator,sight,liquid, manufactured by Mega Corp., classified under FSC 6680 (No Item Name Available). Status: active.

What are the part numbers for NSN 6680-01-589-1791?

NSN 6680-01-589-1791 has 1 cross-referenced part number: 303821 (Mega Corp.).

What NSN replaces 6680-01-589-1791?

There are 3 known substitutes for 6680-01-589-1791: 1680-00-397-4919, 5935-01-039-7072, 5995-01-652-7238. Verify interchangeability with system specifications before substitution.

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