PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

545-6Glass,liquid Sight Indicator,fla

Ernst, John C & Co, Inc. · NSN 6680-01-199-3262 · FSC 6680 · No Item Name Available
Verified by PartsTable
NSN 6680-01-199-3262 — this item is cataloged by the U.S. Government under National Stock Number 6680-01-199-3262. Primary manufacturer part number: 545-6.
Features
  • Glass,liquid Sight Indicator,fla — FSC 6680
  • Mica Shield: NOT PROVIDED
  • Gage Rated Pressure: 400.0 POUNDS PER SQUARE INCH LBS
  • Design Type: REFLEX
  • 1 verified cross-reference
  • Primary manufacturer: Ernst, John C & Co, Inc.
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Glass,liquid Sight Indicator,fla, cataloged under National Stock Number 6680-01-199-3262, is classified within Federal Supply Class 6680 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Ernst, John C & Co, Inc.. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6680-01-199-3262
Primary Part Number545-6
Item NameGlass,liquid Sight Indicator,fla
FSC / FSG6680 / 66 — No Item Name Available
ManufacturerErnst, John C & Co, Inc.
StatusACTIVE
Mica ShieldNOT PROVIDED
Gage Rated Pressure400.0 POUNDS PER SQUARE INCH LBS
Design TypeREFLEX
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
3110-00-100-024110781 INTERCHANGEABLE
Cone and Rollers,tapered Roller
Chrysler Realty Company Llc Dba Daimler Chrysler
5360-00-448-6599545-6 INTERCHANGEABLE
Spring,helical Compression
Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok
5330-00-754-74435456 INTERCHANGEABLE
Seal,nonmetallic Special Shaped
Kirkhill Inc Div Kirkhill Inc, Haskon Division
1650-00-780-60205456 INTERCHANGEABLE
Parts Kit,pump
Hydro-Aire Aerospace Corp
5140-01-117-2540 INTERCHANGEABLE
Holster,hammer
5340-01-289-77925456 INTERCHANGEABLE
Clamp,loop
Epicor Industries Inc Ideal Div
5306-01-424-860885456 INTERCHANGEABLE
Bolt,machine
Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division
Cross-Reference Index
Part NumberManufacturer
545-6 PRIMARY Ernst, John C & Co, Inc. (USA)
Related Parts
3110-00-100-0241INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
10781
5360-00-448-6599INTERCHANGEABLE
SPRING,HELICAL COMPRESSION
545-6
5330-00-754-7443INTERCHANGEABLE
SEAL,NONMETALLIC SPECIAL SHAPED
5456
1650-00-780-6020INTERCHANGEABLE
PARTS KIT,PUMP
5456
5140-01-117-2540INTERCHANGEABLE
HOLSTER,HAMMER
5340-01-289-7792INTERCHANGEABLE
CLAMP,LOOP
5456
5306-01-424-8608INTERCHANGEABLE
BOLT,MACHINE
85456

Frequently Asked Questions

What is NSN 6680-01-199-3262?

NSN 6680-01-199-3262 is a Glass,liquid Sight Indicator,fla, manufactured by Ernst, John C & Co, Inc., classified under FSC 6680 (No Item Name Available). Status: active.

What are the part numbers for NSN 6680-01-199-3262?

NSN 6680-01-199-3262 has 1 cross-referenced part number: 545-6 (Ernst, John C & Co, Inc.).

What NSN replaces 6680-01-199-3262?

There are 7 known substitutes for 6680-01-199-3262: 3110-00-100-0241, 5360-00-448-6599, 5330-00-754-7443 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 545-6?

Key specifications for 545-6: Overall Length: 9.875 INCHES NOMINAL IN; Mica Shield: NOT PROVIDED; Gage Rated Pressure: 400.0 POUNDS PER SQUARE INCH LBS; Design Type: REFLEX. 4 total characteristics are documented in the Federal Logistics Information System.

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