PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4-446-67Indicator,sight,liquid

Air Products & Chemicals, Inc · NSN 6680-01-136-5157 · FSC 6680 · No Item Name Available
Verified by PartsTable
NSN 6680-01-136-5157 — this item is cataloged by the U.S. Government under National Stock Number 6680-01-136-5157. Primary manufacturer part number: 4-446-67.
Features
  • Indicator,sight,liquid — FSC 6680
  • Material: STEEL
  • Maximum Temp Rating: 100.0 CELSIUS DEGC
  • Furnished Data: LIQUID FLOW
  • Data Furnishing Method: CLEAR WINDOW
  • Media for Which Designed: ANY ACCEPTABLE
  • Maximum Working Pressure: 32.0 POUNDS PER SQUARE INCH (PSI) LBS
  • 2 verified cross-references
Applications
  • Applications requiring Steel construction
General Description

The Indicator,sight,liquid, cataloged under National Stock Number 6680-01-136-5157, is classified within Federal Supply Class 6680 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Air Products & Chemicals, Inc. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6680-01-136-5157
Primary Part Number4-446-67
Item NameIndicator,sight,liquid
FSC / FSG6680 / 66 — No Item Name Available
ManufacturerAir Products & Chemicals, Inc
StatusACTIVE
MaterialSTEEL
Maximum Temp Rating100.0 CELSIUS DEGC
Furnished DataLIQUID FLOW
Data Furnishing MethodCLEAR WINDOW
Media for Which DesignedANY ACCEPTABLE
Maximum Working Pressure32.0 POUNDS PER SQUARE INCH (PSI) LBS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
4730-00-410-6087 INTERCHANGEABLE
Plug,pipe
4730-00-801-8186444667 INTERCHANGEABLE
Plug,pipe
Dressta North America Ltd
Cross-Reference Index
Part NumberManufacturer
4-446-67 Air Products & Chemicals, Inc (USA)
4-446-67-0001 Air Products & Chemicals, Inc (USA)
Related Parts
4730-00-410-6087INTERCHANGEABLE
PLUG,PIPE
4730-00-801-8186INTERCHANGEABLE
PLUG,PIPE
444667

Frequently Asked Questions

What is NSN 6680-01-136-5157?

NSN 6680-01-136-5157 is a Indicator,sight,liquid, manufactured by Air Products & Chemicals, Inc, classified under FSC 6680 (No Item Name Available). Status: active.

What are the part numbers for NSN 6680-01-136-5157?

NSN 6680-01-136-5157 has 2 cross-referenced part numbers: 4-446-67 (Air Products & Chemicals, Inc), 4-446-67-0001 (Air Products & Chemicals, Inc).

What NSN replaces 6680-01-136-5157?

There are 2 known substitutes for 6680-01-136-5157: 4730-00-410-6087, 4730-00-801-8186. Verify interchangeability with system specifications before substitution.

What are the specifications of 4-446-67?

Key specifications for 4-446-67: Material: STEEL; Maximum Temp Rating: 100.0 CELSIUS DEGC; Furnished Data: LIQUID FLOW; Data Furnishing Method: CLEAR WINDOW. 6 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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