PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

155359 CLGage,pressure,dial Indicating

Onyx Systems Inc · NSN 6685-00-019-0551 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-019-0551 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-019-0551. Primary manufacturer part number: 155359 CL.
Features
  • Gage,pressure,dial Indicating — FSC 6685
  • Scale Inscription/background Color: BLACK FIGURES ON WHITE BACKGROUND; BLACK FIGURES ON WHITE BACKGROUND
  • Material: STEEL CORROSION RESISTING ACTUATING ELEMENT
  • Criticality Code Justification: FEAT
  • Bezel Type: THREAD
  • Color: BLACK CASE
  • Scale Accuracy: 1/2 PCT ENTIRE RANGE; 1/2 PCT ENTIRE RANGE
  • Material: ALUMINUM AND COPPER ALLOY CASE
Applications
  • Applications requiring Steel Corrosion Resisting Actuating Element construction
General Description

The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-00-019-0551, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Onyx Systems Inc. Government technical data includes 29 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6685-00-019-0551
Primary Part Number155359 CL
Item NameGage,pressure,dial Indicating
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerOnyx Systems Inc
StatusACTIVE
Scale Inscription/background ColorBLACK FIGURES ON WHITE BACKGROUND; BLACK FIGURES ON WHITE BACKGROUND
MaterialSTEEL CORROSION RESISTING ACTUATING ELEMENT
Criticality Code JustificationFEAT
Bezel TypeTHREAD
ColorBLACK CASE
Scale Accuracy1/2 PCT ENTIRE RANGE; 1/2 PCT ENTIRE RANGE
MaterialALUMINUM AND COPPER ALLOY CASE
Scale Name for Which Pointer Is DesignedPRESSURE
Connection Size0.250 IN. NPT DIA IN
Mounting MethodSURFACE WALL
Connector Type VentNOT PROVIDED
Surface TreatmentPAINT EPOXY CASE
Mounting Hole Quantity3
Mounting Hole Diameter0.219 INCHES NOMINAL IN
Overall Diameter5.810 INCHES NOMINAL IN
Bolt Circle Diameter5.375 INCHES NOMINAL IN
MaterialGLASS PROTECTIVE CRYSTAL
Unable to DecodeUNABLE TO DECODE
Scale TypeMULTIPLE
Connection Quantity1
Pointer ColorBLACK
Scale Range+0.000 TO 160.000 POUNDS PRESSURE PER SQUARE INCH AND +0.000 TO 11.000 KILOGRAMS PER SQUARE CENTIMETER LBS
Actuation TypeSINGLE BOURDON TUBE
Dial Size4-1/2 IN. DIA IN
AdjustabilityADJUSTABLE
Pointer TypeINDICATING
Graduation Unit20.0 POUNDS AND 1.000 KILOGRAMS PER SQUARE CENTIMETER LBS
Scale NamePRESSURE
Scale Smallest Increment1.000 POUNDS AND 0.100 KILOGRAMS PER SQUARE CENTIMETER LBS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
6685-00-019-0552155356 INTERCHANGEABLE
Gage,pressure,dial Indicating
Ametek, Inc. Div Aerospace & Defense
6685-00-088-8285155212 INTERCHANGEABLE
Gage,pressure,dial Indicating
Ametek, Inc. Div Aerospace & Defense
6685-00-815-1575133010 INTERCHANGEABLE
Gage,vacuum,indicating
Ametek, Inc. Div Aerospace & Defense
6685-00-837-3522AA444PF4LW INTERCHANGEABLE
Gage,pressure,dial Indicating
Ashcroft Inc Dba Heise
6685-00-910-697645-1379AS-02L-0/200 INTERCHANGEABLE
Gage,pressure,dial Indicating
Ashcroft Inc Dba Heise
Cross-Reference Index
Part NumberManufacturer
155374 Ametek, Inc. Div Aerospace & Defense (USA)
155359 CL PRIMARY Onyx Systems Inc (USA)
1901T Ametek, Inc. Div Aerospace & Defense (USA)
1903-0-160PSI Ametek, Inc. Div Aerospace & Defense (USA)
Related Parts
6685-00-019-0552INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
155356
6685-00-088-8285INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
155212
6685-00-815-1575INTERCHANGEABLE
GAGE,VACUUM,INDICATING
133010
6685-00-837-3522INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
AA444PF4LW
6685-00-910-6976INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
45-1379AS-02L-0/200

Frequently Asked Questions

What is NSN 6685-00-019-0551?

NSN 6685-00-019-0551 is a Gage,pressure,dial Indicating, manufactured by Onyx Systems Inc, classified under FSC 6685 (No Item Name Available). Status: active.

What are the part numbers for NSN 6685-00-019-0551?

NSN 6685-00-019-0551 has 4 cross-referenced part numbers: 155374 (Ametek, Inc. Div Aerospace & Defense), 155359 CL (Onyx Systems Inc), 1901T (Ametek, Inc. Div Aerospace & Defense), 1903-0-160PSI (Ametek, Inc. Div Aerospace & Defense).

What NSN replaces 6685-00-019-0551?

There are 5 known substitutes for 6685-00-019-0551: 6685-00-019-0552, 6685-00-088-8285, 6685-00-815-1575 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 155359 CL?

Key specifications for 155359 CL: Scale Inscription/background Color: BLACK FIGURES ON WHITE BACKGROUND; BLACK FIGURES ON WHITE BACKGROUND; Material: STEEL CORROSION RESISTING ACTUATING ELEMENT; Criticality Code Justification: FEAT; Bezel Type: THREAD. 30 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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