FSC: 6680 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments
FSG: 66 — Instruments and Laboratory Equipment
General Description
The Indicator,sight,liquid, cataloged under National Stock Number 6680-00-173-2811, is classified within Federal Supply Class 6680 (Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments) of the Instruments and Laboratory Equipment group. Government technical data includes 4 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
6680-00-173-2811
Item Name
Indicator,sight,liquid
FSC / FSG
6680 / 66 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments
Status
ACTIVE
Features Provided
COUPLING NUT
Surface Treatment
ANODIZE
Media for Which Designed
HYDRAULIC FLUID
Material
ALUMINUM ALLOY
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
X
⇄Related Items6
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
6625-00-594-445690108POSSIBLE MATCH
DETECTING HEAD,DUMM
Possible match (shared part number)Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple
6150-01-372-239825228-1POSSIBLE MATCH
CABLE ASSEMBLY,SPECIAL PURPOSE,E
Possible match (shared part number)United States Department of the Navy Dba Naval Surface Warfare Center Panama City
5325-01-503-007490108POSSIBLE MATCH
RING,RETAINING
Possible match (shared part number)Worth Co Inc
5325-01-610-432190108POSSIBLE MATCH
RING,RETAINING
Possible match (shared part number)Sey Tec, Inc. Dba Sey Tec Inc
5998-01-620-60579-0108POSSIBLE MATCH
PRINTED CIRCUIT BOARD
Possible match (shared part number)Thermal Dynamics Corp
5120-01-702-445290108POSSIBLE MATCH
KNIFE,PUTTY
Possible match (shared part number)Warner Manufacturing Co Inc Dba Warner Tools
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
252281
1/2Source control — Government-approved source
U.S. Government activity
90108
5/9Secondary reference
Aero Energy Systems Inc
110S325
3/9Design control — primary reference
Oasis Construction Div Supply Nurses
Related Parts
6625-00-594-4456POSSIBLE MATCH
DETECTING HEAD,DUMM
90108
6150-01-372-2398POSSIBLE MATCH
CABLE ASSEMBLY,SPECIAL PURPOSE,E
25228-1
5325-01-503-0074POSSIBLE MATCH
RING,RETAINING
90108
5325-01-610-4321POSSIBLE MATCH
RING,RETAINING
90108
5998-01-620-6057POSSIBLE MATCH
PRINTED CIRCUIT BOARD
9-0108
5120-01-702-4452POSSIBLE MATCH
KNIFE,PUTTY
90108
Frequently Asked Questions
What is NSN 6680-00-173-2811?
NSN 6680-00-173-2811 is a Indicator,sight,liquid, classified under FSC 6680, Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments. Status: active.
What NSN replaces 6680-00-173-2811?
6 possible matches (shared part number, not a government interchangeability claim): 6625-00-594-4456, 6150-01-372-2398, 5325-01-503-0074. Verify interchangeability with system specifications before substitution.
What are the specifications of 6680-00-173-2811?
Key specifications for 6680-00-173-2811: Features Provided: COUPLING NUT; Surface Treatment: ANODIZE; Media for Which Designed: HYDRAULIC FLUID; Material: ALUMINUM ALLOY. 4 specifications are documented in the U.S. Government catalog.
Is NSN 6680-00-173-2811 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.