PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

138-QFloat,sight Indicator

Parker Hannifin Corp Dba Pneutronics Div Aerospace Filtration Division · NSN 6680-01-664-3760 · FSC 6680 · No Item Name Available
Verified by PartsTable
NSN 6680-01-664-3760 — this item is cataloged by the U.S. Government under National Stock Number 6680-01-664-3760. Primary manufacturer part number: 138-Q.
Features
  • Float,sight Indicator — FSC 6680
  • 3 verified cross-references
  • Primary manufacturer: Parker Hannifin Corp Dba Pneutronics Div Aerospace Filtration Division
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Float,sight Indicator, cataloged under National Stock Number 6680-01-664-3760, is classified within Federal Supply Class 6680 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Parker Hannifin Corp Dba Pneutronics Div Aerospace Filtration Division. This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameFloat,sight Indicator
FSC / FSG6680 — No Item Name Available (FSG 66)
ManufacturersDrs Sustainment Systems Inc (CAGE 98255); Parker Hannifin Corp Dba Pneutronics Div Aerospace Filtration Division (CAGE 13573)
Technical Specifications
ParameterValue
NSN6680-01-664-3760
Primary Part Number138-Q
Item NameFloat,sight Indicator
FSC / FSG6680 / 66 — No Item Name Available
ManufacturerParker Hannifin Corp Dba Pneutronics Div Aerospace Filtration Division
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5999-00-853-5958SMB413546 INTERCHANGEABLE
Contact,electrical
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5961-01-019-492720-00743-001 INTERCHANGEABLE
Transistor
Raytheon Company
5961-01-212-801120-00743-003 INTERCHANGEABLE
Transistor
Raytheon Company
5962-01-350-8777 INTERCHANGEABLE
Microcircuit,linear
4710-01-631-9290810002-11 INTERCHANGEABLE
Tube,bent,metallic
Drs Sustainment Systems Inc
4710-01-631-9312810002-12 INTERCHANGEABLE
Tube,bent,metallic
Drs Sustainment Systems Inc
Cross-Reference Index
Part NumberManufacturer
810002-16 Drs Sustainment Systems Inc (USA)
138-Q PRIMARY Parker Hannifin Corp Dba Pneutronics Div Aerospace Filtration Division (USA)
810002 Drs Sustainment Systems Inc (USA)
Related Parts
5999-00-853-5958INTERCHANGEABLE
CONTACT,ELECTRICAL
SMB413546
5961-01-019-4927INTERCHANGEABLE
TRANSISTOR
20-00743-001
5961-01-212-8011INTERCHANGEABLE
TRANSISTOR
20-00743-003
5962-01-350-8777INTERCHANGEABLE
MICROCIRCUIT,LINEAR
4710-01-631-9290INTERCHANGEABLE
TUBE,BENT,METALLIC
810002-11
4710-01-631-9312INTERCHANGEABLE
TUBE,BENT,METALLIC
810002-12

Frequently Asked Questions

What is NSN 6680-01-664-3760?

NSN 6680-01-664-3760 is a Float,sight Indicator, manufactured by Parker Hannifin Corp Dba Pneutronics Div Aerospace Filtration Division, classified under FSC 6680 (No Item Name Available). Status: active.

What are the part numbers for NSN 6680-01-664-3760?

NSN 6680-01-664-3760 has 3 cross-referenced part numbers: 810002-16 (Drs Sustainment Systems Inc), 138-Q (Parker Hannifin Corp Dba Pneutronics Div Aerospace Filtration Division), 810002 (Drs Sustainment Systems Inc).

What NSN replaces 6680-01-664-3760?

There are 6 known substitutes for 6680-01-664-3760: 5999-00-853-5958, 5961-01-019-4927, 5961-01-212-8011 and 3 more. Verify interchangeability with system specifications before substitution.

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