PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

ST57ATransmitter,pressure

Ametek, Inc. Div Aerospace & Defense · NSN 6620-00-826-7238 · FSC 6620 · No Item Name Available
Verified by PartsTable
NSN 6620-00-826-7238 — this item is cataloged by the U.S. Government under National Stock Number 6620-00-826-7238. Primary manufacturer part number: ST57A.
Features
  • Transmitter,pressure — FSC 6620
  • Current Type: AC
  • Mounting Device Quantity: 4
  • Actuation Method: BOURDON TUBE
  • Mounting Method: HOLE
  • Electrical Connection Identifying Number: 3102C1432P
  • Overall Thickness: 2.625 INCHES NOMINAL IN
  • Mechanical Connection Quantity: 2
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transmitter,pressure, cataloged under National Stock Number 6620-00-826-7238, is classified within Federal Supply Class 6620 (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 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6620-00-826-7238
Primary Part NumberST57A
Item NameTransmitter,pressure
FSC / FSG6620 / 66 — No Item Name Available
ManufacturerAmetek, Inc. Div Aerospace & Defense
StatusACTIVE
Current TypeAC
Mounting Device Quantity4
Actuation MethodBOURDON TUBE
Mounting MethodHOLE
Electrical Connection Identifying Number3102C1432P
Overall Thickness2.625 INCHES NOMINAL IN
Mechanical Connection Quantity2
Voltage Rating26.0 VOLTS NOMINAL LOCATION NOT OTHERWISE SPECIFIED
Contact TypePIN
Mechanical Connection TypeINTERNAL TUBE
Electrical Connection Quantity1
PhaseSINGLE LOCATION NOT OTHERWISE SPECIFIED
Connector Controlling AgencyMS
Contact Quantity4
Mechanical Connection Size7/16 IN. DIA IN
Measurement Range+0.0 TO 200.0 POUNDS PER SQUARE INCH LBS
Frequency Rating400.0 HERTZ NOMINAL LOCATION NOT OTHERWISE SPECIFIED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
6685-00-228-21897600-30A8-1 INTERCHANGEABLE
Transmitter,pressure
Honeywell International Inc. Dba Honeywell International
6685-00-840-8606 INTERCHANGEABLE
Transmitter,pressure
5950-01-035-9581247AS-C0812-002 INTERCHANGEABLE
Transformer,audio Frequency
Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
Cross-Reference Index
Part NumberManufacturer
ST57A Ametek, Inc. Div Aerospace & Defense (USA)
MILT5483 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MS28130-7 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
6685-00-228-2189INTERCHANGEABLE
TRANSMITTER,PRESSURE
7600-30A8-1
6685-00-840-8606INTERCHANGEABLE
TRANSMITTER,PRESSURE
5950-01-035-9581INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
247AS-C0812-002

Frequently Asked Questions

What is NSN 6620-00-826-7238?

NSN 6620-00-826-7238 is a Transmitter,pressure, manufactured by Ametek, Inc. Div Aerospace & Defense, classified under FSC 6620 (No Item Name Available). Status: active.

What are the part numbers for NSN 6620-00-826-7238?

NSN 6620-00-826-7238 has 3 cross-referenced part numbers: ST57A (Ametek, Inc. Div Aerospace & Defense), MILT5483 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MS28130-7 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 6620-00-826-7238?

There are 3 known substitutes for 6620-00-826-7238: 6685-00-228-2189, 6685-00-840-8606, 5950-01-035-9581. Verify interchangeability with system specifications before substitution.

What are the specifications of ST57A?

Key specifications for ST57A: Current Type: AC; Mounting Device Quantity: 4; Overall Width: 2.625 INCHES NOMINAL IN; Actuation Method: BOURDON TUBE. 19 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com