PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

550-7Indicator,sight,liquid

Tobeyco Mfg, Co, Inc. Div Federal Brass Mfg. · NSN 6680-00-586-9754 · FSC 6680 · No Item Name Available
Verified by PartsTable
NSN 6680-00-586-9754 — this item is cataloged by the U.S. Government under National Stock Number 6680-00-586-9754. Primary manufacturer part number: 550-7.
Features
  • Indicator,sight,liquid — FSC 6680
  • Thread Series Designator: UNABLE TO DECODE
  • Material: ALUMINUM ALLOY
  • Media for Which Designed: ANY ACCEPTABLE
  • End Connection Type: UNABLE TO DECODE
  • Furnished Data: LIQUID LEVEL
  • Distance Between Mounting Facility Centers: 7.000 INCHES NOMINAL IN
  • Maximum Temp Rating: 150.0 FAHRENHEIT DEGF
Applications
  • Applications requiring Aluminum Alloy construction
General Description

The Indicator,sight,liquid, cataloged under National Stock Number 6680-00-586-9754, is classified within Federal Supply Class 6680 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Tobeyco Mfg, Co, Inc. Div Federal Brass Mfg.. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN6680-00-586-9754
Primary Part Number550-7
Item NameIndicator,sight,liquid
FSC / FSG6680 / 66 — No Item Name Available
ManufacturerTobeyco Mfg, Co, Inc. Div Federal Brass Mfg.
StatusCANCELLED
Thread Series DesignatorUNABLE TO DECODE
MaterialALUMINUM ALLOY
Media for Which DesignedANY ACCEPTABLE
End Connection TypeUNABLE TO DECODE
Furnished DataLIQUID LEVEL
Distance Between Mounting Facility Centers7.000 INCHES NOMINAL IN
Maximum Temp Rating150.0 FAHRENHEIT DEGF
Style DesignatorDOUBLE-MOUNT, SHIELDED, FRONT OPENING
Sight Height4.625 INCHES MINIMUM AND 6.000 INCHES MAXIMUM IN
Nominal Thread SizeUNABLE TO DECODE
Data Furnishing MethodCLEAR WINDOW
Thread ClassUNABLE TO DECODE
Thread DirectionUNABLE TO DECODE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5325-00-058-1739201-0180-000 INTERCHANGEABLE
Grommet,nonmetallic
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
3110-00-156-5453280026-103 INTERCHANGEABLE
Bearing,ball,annular
Naval Sea Systems Command
5930-00-257-57565507 INTERCHANGEABLE
Switch,toggle
Cole Hersee Company
5133-00-409-0392 INTERCHANGEABLE
Drill,twist
4920-00-411-86215507 INTERCHANGEABLE
Test Set,special
Invensys Systems, Inc. Dba Schneider Electric
5310-00-476-28225507 INTERCHANGEABLE
Nut,plain,internal Wrenching
Goodrich Aerospace Canada Ltd
1285-00-891-33002557874PT7REVE INTERCHANGEABLE
Filter-Detector Ass
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5985-01-004-97165507 INTERCHANGEABLE
Circulator,radio Frequency
Stellant Systems Inc
6125-01-020-575655-07 INTERCHANGEABLE
Motor-Generator
Arc Systems Inc
5905-01-073-731811781316 INTERCHANGEABLE
Resistor Network,fixed,film
Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate
Cross-Reference Index
Part NumberManufacturer
550-7 Lenz Inc Dba the Lenz Company (USA)
550-7 PRIMARY Tobeyco Mfg, Co, Inc. Div Federal Brass Mfg. (USA)
G605-7-A-1 MODIFIED 1/2-13 THD Ldi Industries, Inc. Dba Ldi Industries Inc (USA)
CB57-43006PC15 Textron Systems Corporation Dba Textron Systems Corp (USA)
Related Parts
5325-00-058-1739INTERCHANGEABLE
GROMMET,NONMETALLIC
201-0180-000
3110-00-156-5453INTERCHANGEABLE
BEARING,BALL,ANNULAR
280026-103
5930-00-257-5756INTERCHANGEABLE
SWITCH,TOGGLE
5507
5133-00-409-0392INTERCHANGEABLE
DRILL,TWIST
4920-00-411-8621INTERCHANGEABLE
TEST SET,SPECIAL
5507
5310-00-476-2822INTERCHANGEABLE
NUT,PLAIN,INTERNAL WRENCHING
5507
1285-00-891-3300INTERCHANGEABLE
FILTER-DETECTOR ASS
2557874PT7REVE
5985-01-004-9716INTERCHANGEABLE
CIRCULATOR,RADIO FREQUENCY
5507
6125-01-020-5756INTERCHANGEABLE
MOTOR-GENERATOR
55-07
5905-01-073-7318INTERCHANGEABLE
RESISTOR NETWORK,FIXED,FILM
11781316
5996-01-273-9826INTERCHANGEABLE
AMPLIFIER,AUDIO FREQUENCY
5507
6680-01-323-7446INTERCHANGEABLE
INDICATOR,SIGHT,LIQUID
5507

Frequently Asked Questions

What is NSN 6680-00-586-9754?

NSN 6680-00-586-9754 is a Indicator,sight,liquid, manufactured by Tobeyco Mfg, Co, Inc. Div Federal Brass Mfg., classified under FSC 6680 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6680-00-586-9754?

NSN 6680-00-586-9754 has 4 cross-referenced part numbers: 550-7 (Lenz Inc Dba the Lenz Company), 550-7 (Tobeyco Mfg, Co, Inc. Div Federal Brass Mfg.), G605-7-A-1 MODIFIED 1/2-13 THD (Ldi Industries, Inc. Dba Ldi Industries Inc), CB57-43006PC15 (Textron Systems Corporation Dba Textron Systems Corp).

What NSN replaces 6680-00-586-9754?

There are 12 known substitutes for 6680-00-586-9754: 5325-00-058-1739, 3110-00-156-5453, 5930-00-257-5756 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 550-7?

Key specifications for 550-7: Thread Series Designator: UNABLE TO DECODE; Material: ALUMINUM ALLOY; Media for Which Designed: ANY ACCEPTABLE; Overall Height: 8.625 INCHES MINIMUM AND 9.750 INCHES MAXIMUM IN. 14 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6680-00-586-9754 still in active supply?

NSN 6680-00-586-9754 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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