FSC: 6680 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments
FSG: 66 — Instruments and Laboratory Equipment
General Description
The Indicator,liquid Quantity, cataloged under National Stock Number 6680-01-142-5603, 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of the Instruments and Laboratory Equipment group. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Catalog Facts
Item Name
Indicator,liquid Quantity
FSC / FSG
6680 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments (FSG 66)
Technical Specifications
Parameter
Value
NSN
6680-01-142-5603
Item Name
Indicator,liquid Quantity
FSC / FSG
6680 / 66 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments
Status
ACTIVE
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL D — Destroy Item
Hazard
No hazard code in the DLA record (HMIC N)
⇄Related Items4
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
6680-01-142-5604473401-01POSSIBLE MATCH
INDICATOR,LIQUID QUANTITY
Possible match (shared part number)Simmonds Precision Products Inc
6680-01-142-5606473402-01POSSIBLE MATCH
INDICATOR,LIQUID QUANTITY
Possible match (shared part number)Simmonds Precision Products Inc
6680-01-144-1284473404-01POSSIBLE MATCH
INDICATOR,LIQUID QUANTITY
Possible match (shared part number)Simmonds Precision Products Inc
3110-01-317-8755POSSIBLE MATCH
BEARING,BALL,ANNULAR
Possible match (shared part number)
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
472288-24
5/9Secondary reference
U.S. Government activity
473403-01
3/2Design control — primary reference
U.S. Government activity
L345C2001-5A
7/1Vendor item drawing reference
The Boeing Company Div Legacy Am&m
473403
5/2Secondary reference
U.S. Government activity
Related Parts
6680-01-142-5604POSSIBLE MATCH
INDICATOR,LIQUID QUANTITY
473401-01
6680-01-142-5606POSSIBLE MATCH
INDICATOR,LIQUID QUANTITY
473402-01
6680-01-144-1284POSSIBLE MATCH
INDICATOR,LIQUID QUANTITY
473404-01
3110-01-317-8755POSSIBLE MATCH
BEARING,BALL,ANNULAR
Frequently Asked Questions
What is NSN 6680-01-142-5603?
NSN 6680-01-142-5603 is a Indicator,liquid Quantity, classified under FSC 6680, Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments. Status: active.
What NSN replaces 6680-01-142-5603?
4 possible matches (shared part number, not a government interchangeability claim): 6680-01-142-5604, 6680-01-142-5606, 6680-01-144-1284. Verify interchangeability with system specifications before substitution.
Is NSN 6680-01-142-5603 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.
What is the DEMIL code for NSN 6680-01-142-5603?
NSN 6680-01-142-5603 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
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.