PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

164440Gage,pressure,dial Indicating

Ametek, Inc. Div Aerospace & Defense · NSN 6685-01-122-8326 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-01-122-8326 — this item is cataloged by the U.S. Government under National Stock Number 6685-01-122-8326. Primary manufacturer part number: 164440.
Features
  • Gage,pressure,dial Indicating — FSC 6685
  • Bolt Circle Diameter: 2.562 INCHES NOMINAL IN
  • Mounting Hole Diameter: 0.156 INCHES NOMINAL IN
  • Color: BLACK CASE
  • Material: STEEL CASE
  • Surface Treatment: PAINT EPOXY CASE
  • Material: PLASTIC PROTECTIVE CRYSTAL
  • Mounting Hole Quantity: 3
Applications
  • Applications requiring Steel Case construction
General Description

The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-01-122-8326, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Ametek, Inc. Div Aerospace & Defense. Government technical data includes 28 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 4 manufacturers, 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
NSN6685-01-122-8326
Primary Part Number164440
Item NameGage,pressure,dial Indicating
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerAmetek, Inc. Div Aerospace & Defense
StatusACTIVE
Bolt Circle Diameter2.562 INCHES NOMINAL IN
Mounting Hole Diameter0.156 INCHES NOMINAL IN
ColorBLACK CASE
MaterialSTEEL CASE
Surface TreatmentPAINT EPOXY CASE
MaterialPLASTIC PROTECTIVE CRYSTAL
Mounting Hole Quantity3
MaterialCOPPER ALLOY 511 ACTUATING ELEMENT
Scale Inscription/background ColorBLACK MARKINGS ON WHITE BACKGROUND
Connector Type VentNOT PROVIDED
Connection Size0.125 IN. NPT DIA IN
Dial Size2 IN. DIA IN
Scale Smallest Increment0.5 POUNDS PER SQUARE INCH (PSI) LBS
AdjustabilityADJUSTABLE
Mounting MethodFLUSH
Scale TypeSINGLE
Connection Quantity1
Graduation Unit3.0 POUNDS PER SQUARE INCH LBS
Connection LocationCENTER
Connection TypeEXTERNAL
Scale Range+0.0 TO 15.0 POUNDS PRESSURE PER SQUARE INCH LBS
Bezel TypeTHREAD
Actuation TypeBOURDON TUBE
Pointer TypeINDICATING
Pointer ColorBLACK
Scale NamePRESSURE
Scale AccuracyPORM 2 PCT MIDDLE HALF; 3 PCT REMAINDER
Overall Diameter2.810 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5961-00-057-7859 INTERCHANGEABLE
Semiconductor Device,diode
5815-00-591-4770138033 INTERCHANGEABLE
Insulator
Telemechanics Inc
Cross-Reference Index
Part NumberManufacturer
6525013-000 Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
3153949 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
P845FF-1/8CM-0-15 Ametek, Inc. Div Aerospace & Defense (USA)
164440 PRIMARY Ametek, Inc. Div Aerospace & Defense (USA)
138033 Ametek, Inc. Div Aerospace & Defense (USA)
A4714-5 Spx Corporation Dba Dielectric Communications Div Spx Communication Technologies (USA)
Related Parts
5961-00-057-7859INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5815-00-591-4770INTERCHANGEABLE
INSULATOR
138033

Frequently Asked Questions

What is NSN 6685-01-122-8326?

NSN 6685-01-122-8326 is a Gage,pressure,dial Indicating, manufactured by Ametek, Inc. Div Aerospace & Defense, classified under FSC 6685 (No Item Name Available). Status: active.

What are the part numbers for NSN 6685-01-122-8326?

NSN 6685-01-122-8326 has 6 cross-referenced part numbers: 6525013-000 (Lockheed Martin Corporation Div Rms - Mitchel Field), 3153949 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), P845FF-1/8CM-0-15 (Ametek, Inc. Div Aerospace & Defense), 164440 (Ametek, Inc. Div Aerospace & Defense), 138033 (Ametek, Inc. Div Aerospace & Defense) and 1 more.

What NSN replaces 6685-01-122-8326?

There are 2 known substitutes for 6685-01-122-8326: 5961-00-057-7859, 5815-00-591-4770. Verify interchangeability with system specifications before substitution.

What are the specifications of 164440?

Key specifications for 164440: Bolt Circle Diameter: 2.562 INCHES NOMINAL IN; Mounting Hole Diameter: 0.156 INCHES NOMINAL IN; Color: BLACK CASE; Material: STEEL CASE. 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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