PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2621-702-03 PIECE 8Glass,liquid Sight Indicator,fla

Electric Boat Corporation Div General Dynamics Electric Boat · NSN 6680-01-086-8173 · FSC 6680 · No Item Name Available
Verified by PartsTable
NSN 6680-01-086-8173 — this item is cataloged by the U.S. Government under National Stock Number 6680-01-086-8173. Primary manufacturer part number: 2621-702-03 PIECE 8.
Features
  • Glass,liquid Sight Indicator,fla — FSC 6680
  • Gasket: NOT INCLUDED
  • Gage Rated Pressure: 700.0 POUNDS PER SQUARE INCH LBS
  • Overall Thickness: 1.250 INCHES NOMINAL IN
  • Design Type: PLAIN
  • Mica Shield: NOT PROVIDED
  • Overall Diameter: 2.120 INCHES MINIMUM AND 2.125 INCHES MAXIMUM IN
  • 3 verified cross-references
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 6680-01-086-8173, is classified within Federal Supply Class 6680 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Electric Boat Corporation Div General Dynamics Electric Boat. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6680-01-086-8173
Primary Part Number2621-702-03 PIECE 8
Item NameGlass,liquid Sight Indicator,fla
FSC / FSG6680 / 66 — No Item Name Available
ManufacturerElectric Boat Corporation Div General Dynamics Electric Boat
StatusACTIVE
GasketNOT INCLUDED
Gage Rated Pressure700.0 POUNDS PER SQUARE INCH LBS
Overall Thickness1.250 INCHES NOMINAL IN
Design TypePLAIN
Mica ShieldNOT PROVIDED
Overall Diameter2.120 INCHES MINIMUM AND 2.125 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
6680-00-526-518725J671PC27 INTERCHANGEABLE
Glass,liquid Sight Indicator,fla
Northrop Grumman Systems Corporation Div Marine Systems
Cross-Reference Index
Part NumberManufacturer
2621-702-03 PIECE 8 PRIMARY Electric Boat Corporation Div General Dynamics Electric Boat (USA)
MIL-G-2697 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-PRF-2697 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
6680-00-526-5187INTERCHANGEABLE
GLASS,LIQUID SIGHT INDICATOR,FLA
25J671PC27

Frequently Asked Questions

What is NSN 6680-01-086-8173?

NSN 6680-01-086-8173 is a Glass,liquid Sight Indicator,fla, manufactured by Electric Boat Corporation Div General Dynamics Electric Boat, classified under FSC 6680 (No Item Name Available). Status: active.

What are the part numbers for NSN 6680-01-086-8173?

NSN 6680-01-086-8173 has 3 cross-referenced part numbers: 2621-702-03 PIECE 8 (Electric Boat Corporation Div General Dynamics Electric Boat), MIL-G-2697 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-PRF-2697 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 6680-01-086-8173?

There is 1 known substitute for 6680-01-086-8173: 6680-00-526-5187. Verify interchangeability with system specifications before substitution.

What are the specifications of 2621-702-03 PIECE 8?

Key specifications for 2621-702-03 PIECE 8: End Item Identification: TRIDENT; Gasket: NOT INCLUDED; Gage Rated Pressure: 700.0 POUNDS PER SQUARE INCH LBS; Overall Thickness: 1.250 INCHES NOMINAL IN. 7 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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