PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

22128Glass,liquid Sight Indicator,fla

Hydraulics International, Inc. Dba Use CAGE Code 56529 for Cataloging · NSN 6680-01-387-0309 · FSC 6680 · No Item Name Available
Verified by PartsTable
NSN 6680-01-387-0309 — this item is cataloged by the U.S. Government under National Stock Number 6680-01-387-0309. Primary manufacturer part number: 22128.
Features
  • Glass,liquid Sight Indicator,fla — FSC 6680
  • 2 verified cross-references
  • Primary manufacturer: Hydraulics International, Inc. Dba Use CAGE Code 56529 for Cataloging
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 6680-01-387-0309, is classified within Federal Supply Class 6680 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Hydraulics International, Inc. Dba Use CAGE Code 56529 for Cataloging. This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameGlass,liquid Sight Indicator,fla
FSC / FSG6680 — No Item Name Available (FSG 66)
ManufacturersHydraulics International, Inc. Dba Use CAGE Code 56529 for Cataloging (CAGE 2N386)
Technical Specifications
ParameterValue
NSN6680-01-387-0309
Primary Part Number22128
Item NameGlass,liquid Sight Indicator,fla
FSC / FSG6680 / 66 — No Item Name Available
ManufacturerHydraulics International, Inc. Dba Use CAGE Code 56529 for Cataloging
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
3120-00-035-868222128 INTERCHANGEABLE
Bearing,sleeve
Prestolite Electric Inc
6130-00-199-9533 INTERCHANGEABLE
Rectifier,metallic
5360-00-205-445822128 INTERCHANGEABLE
Spring,helical,compression
Grove Valve Operations
5975-00-234-2422 INTERCHANGEABLE
Box Connector,electrical
6130-00-928-4867221-28 INTERCHANGEABLE
Power Supply
Ducommun Labarge Technologies, Inc Dba Ducommun Labarge Technologies, Inc
4820-01-249-714422128-1 INTERCHANGEABLE
Stem,fluid Valve
Hydraulics International, Inc. Dba Hydraulics International Inc
5998-01-370-815222128 INTERCHANGEABLE
Circuit Card Assembly
Anritsu Instruments Company Div Mbu
Cross-Reference Index
Part NumberManufacturer
22128 Hydraulics International, Inc. Dba Use CAGE Code 56529 for Cataloging (USA)
22128-1 Hydraulics International, Inc. Dba Use CAGE Code 56529 for Cataloging (USA)
Related Parts
3120-00-035-8682INTERCHANGEABLE
BEARING,SLEEVE
22128
6130-00-199-9533INTERCHANGEABLE
RECTIFIER,METALLIC
5360-00-205-4458INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
22128
5975-00-234-2422INTERCHANGEABLE
BOX CONNECTOR,ELECTRICAL
6130-00-928-4867INTERCHANGEABLE
POWER SUPPLY
221-28
4820-01-249-7144INTERCHANGEABLE
STEM,FLUID VALVE
22128-1
5998-01-370-8152INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
22128

Frequently Asked Questions

What is NSN 6680-01-387-0309?

NSN 6680-01-387-0309 is a Glass,liquid Sight Indicator,fla, manufactured by Hydraulics International, Inc. Dba Use CAGE Code 56529 for Cataloging, classified under FSC 6680 (No Item Name Available). Status: active.

What are the part numbers for NSN 6680-01-387-0309?

NSN 6680-01-387-0309 has 2 cross-referenced part numbers: 22128 (Hydraulics International, Inc. Dba Use CAGE Code 56529 for Cataloging), 22128-1 (Hydraulics International, Inc. Dba Use CAGE Code 56529 for Cataloging).

What NSN replaces 6680-01-387-0309?

There are 7 known substitutes for 6680-01-387-0309: 3120-00-035-8682, 6130-00-199-9533, 5360-00-205-4458 and 4 more. Verify interchangeability with system specifications before substitution.

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