PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

G-2004-36Indicator,sight,liquid

Gil, Inc. · NSN 6680-01-059-0603 · FSC 6680 · No Item Name Available
Verified by PartsTable
NSN 6680-01-059-0603 — this item is cataloged by the U.S. Government under National Stock Number 6680-01-059-0603. Primary manufacturer part number: G-2004-36.
Features
  • Indicator,sight,liquid — FSC 6680
  • Thread Direction: UNABLE TO DECODE
  • Thread Series Designator: UNABLE TO DECODE
  • Style Designator: GAGE VALVE
  • Sight Height: 8.500 INCHES NOMINAL IN
  • Media for Which Designed: WATER
  • End Connection Type: UNABLE TO DECODE
  • Data Furnishing Method: CLEAR WINDOW
Applications
  • Applications requiring Copper Alloy construction
General Description

The Indicator,sight,liquid, cataloged under National Stock Number 6680-01-059-0603, is classified within Federal Supply Class 6680 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Gil, Inc.. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN6680-01-059-0603
Primary Part NumberG-2004-36
Item NameIndicator,sight,liquid
FSC / FSG6680 / 66 — No Item Name Available
ManufacturerGil, Inc.
StatusCANCELLED
Thread DirectionUNABLE TO DECODE
Thread Series DesignatorUNABLE TO DECODE
Style DesignatorGAGE VALVE
Sight Height8.500 INCHES NOMINAL IN
Media for Which DesignedWATER
End Connection TypeUNABLE TO DECODE
Data Furnishing MethodCLEAR WINDOW
Thread Quantity Per InchUNABLE TO DECODE
Guard Rod Quantity2
Sight Diameter0.625 INCHES NOMINAL IN
Nominal Thread SizeUNABLE TO DECODE
MaterialCOPPER ALLOY
Furnished DataLIQUID LEVEL
Distance Between Mounting Facility Centers10.000 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
4820-01-030-2730A12523.013.253 INTERCHANGEABLE
Ring,seat
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
5962-01-099-4821SD61887 INTERCHANGEABLE
Microcircuit,digital
National Semiconductor Corporation
8040-01-394-3735 INTERCHANGEABLE
Adhesive
6515-01-590-86659021 INTERCHANGEABLE
Docking Station,pulse Oximeter
Masimo Corporation
2990-01-596-449320250 INTERCHANGEABLE
Exhaust System,engine
Aqualarm Inc
Cross-Reference Index
Part NumberManufacturer
20-250 Aalberts Integrated Piping Systems Americas, Inc. (USA)
WG3BCANDGL5812PANDWGR31614B Essex Brass Corporation (USA)
G-2004-36 PRIMARY Gil, Inc. (USA)
EEP6155 Ernst Flow Industries Llc Div Ernst Flow Industries (USA)
20-250-00 Aalberts Integrated Piping Systems Americas, Inc. (USA)
EEP 6155 Ernst Flow Industries (USA)
Related Parts
4820-01-030-2730INTERCHANGEABLE
RING,SEAT
A12523.013.253
5962-01-099-4821INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
SD61887
8040-01-394-3735INTERCHANGEABLE
ADHESIVE
6515-01-590-8665INTERCHANGEABLE
DOCKING STATION,PULSE OXIMETER
9021
2990-01-596-4493INTERCHANGEABLE
EXHAUST SYSTEM,ENGINE
20250

Frequently Asked Questions

What is NSN 6680-01-059-0603?

NSN 6680-01-059-0603 is a Indicator,sight,liquid, manufactured by Gil, Inc., classified under FSC 6680 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6680-01-059-0603?

NSN 6680-01-059-0603 has 6 cross-referenced part numbers: 20-250 (Aalberts Integrated Piping Systems Americas, Inc.), WG3BCANDGL5812PANDWGR31614B (Essex Brass Corporation), G-2004-36 (Gil, Inc.), EEP6155 (Ernst Flow Industries Llc Div Ernst Flow Industries), 20-250-00 (Aalberts Integrated Piping Systems Americas, Inc.) and 1 more.

What NSN replaces 6680-01-059-0603?

There are 5 known substitutes for 6680-01-059-0603: 4820-01-030-2730, 5962-01-099-4821, 8040-01-394-3735 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of G-2004-36?

Key specifications for G-2004-36: Thread Direction: UNABLE TO DECODE; Thread Series Designator: UNABLE TO DECODE; End Item Identification: LOGISTICS SUPPORT VESSEL (LSV); Style Designator: GAGE VALVE. 15 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6680-01-059-0603 still in active supply?

NSN 6680-01-059-0603 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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