PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

389904PC40Gage,pressure,dial Indicating

Naval Ship Systems Command · NSN 6685-00-527-6370 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-527-6370 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-527-6370. Primary manufacturer part number: 389904PC40.
Features
  • Gage,pressure,dial Indicating — FSC 6685
  • Material: BRASS CASE
  • FSC Application Data: GAGE,PRESSURE,DIAL INDICATING,EXCEPT ENGINE
  • Material: BRONZE ACTUATING ELEMENT
  • Material: PLASTIC PROTECTIVE CRYSTAL
  • Adjustability: NONADJUSTABLE
  • Pointer Type: INDICATING
  • Bezel Type: THREAD
Applications
  • Applications requiring Brass Case construction
General Description

The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-00-527-6370, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Naval Ship Systems Command. Government technical data includes 26 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 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
NSN6685-00-527-6370
Primary Part Number389904PC40
Item NameGage,pressure,dial Indicating
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerNaval Ship Systems Command
StatusACTIVE
MaterialBRASS CASE
FSC Application DataGAGE,PRESSURE,DIAL INDICATING,EXCEPT ENGINE
MaterialBRONZE ACTUATING ELEMENT
MaterialPLASTIC PROTECTIVE CRYSTAL
AdjustabilityNONADJUSTABLE
Pointer TypeINDICATING
Bezel TypeTHREAD
Connection Quantity1
Connector Type VentNOT PROVIDED
Dial Size2-1/2 IN. DIA IN
Pointer ColorBLACK
Scale TypeSINGLE
Scale Smallest Increment0.5 POUNDS PER SQUARE INCH (PSI) LBS
Graduation Unit3.0 POUNDS PER SQUARE INCH LBS
Connection Size0.125 IN. NPT IN
Scale Range+0.0 TO 15.0 POUNDS PRESSURE PER SQUARE INCH LBS
Usage DesignW/AIR,OIL OR WATER INTO FROM CAT NO. 37,PG 26
Connection LocationLOWER
Connection TypeEXTERNAL
Scale NamePRESSURE
Scale Inscription/background ColorBLACK FIGURES ON WHITE BACKGROUND
Actuation TypeSINGLE BOURDON TUBE
Mounting MethodRIGID STEM
Scale Accuracy2 PERCENT MIDDLE HALF OF RANGE,3 PERCENT REMAINDER
Overall Diameter2.810 INCHES NOMINAL IN
Surface TreatmentENAMEL CASE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
6685-00-244-1830Z100D1X3232 INTERCHANGEABLE
Gage,pressure,dial Indicating
Uniweld Products, Inc. Dba Uniweld Products Inc
6685-00-526-6445 INTERCHANGEABLE
Gage,pressure,dial Indicating
Cross-Reference Index
Part NumberManufacturer
P500 1/8LM Ametek, Inc. Div Aerospace & Defense (USA)
MIL-G-16983 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
GG-G-76 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
G8785PC40 Siemens Energy, Inc. (USA)
389904PC40 PRIMARY Naval Ship Systems Command (USA)
Related Parts
6685-00-244-1830INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
Z100D1X3232
6685-00-526-6445INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING

Frequently Asked Questions

What is NSN 6685-00-527-6370?

NSN 6685-00-527-6370 is a Gage,pressure,dial Indicating, manufactured by Naval Ship Systems Command, classified under FSC 6685 (No Item Name Available). Status: active.

What are the part numbers for NSN 6685-00-527-6370?

NSN 6685-00-527-6370 has 5 cross-referenced part numbers: P500 1/8LM (Ametek, Inc. Div Aerospace & Defense), MIL-G-16983 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), GG-G-76 (Federal Specifications Promulgated by General Services Administration Washington DC), G8785PC40 (Siemens Energy, Inc.), 389904PC40 (Naval Ship Systems Command).

What NSN replaces 6685-00-527-6370?

There are 2 known substitutes for 6685-00-527-6370: 6685-00-244-1830, 6685-00-526-6445. Verify interchangeability with system specifications before substitution.

What are the specifications of 389904PC40?

Key specifications for 389904PC40: Material: BRASS CASE; Overall Depth: 1.200 INCHES NOMINAL IN; FSC Application Data: GAGE,PRESSURE,DIAL INDICATING,EXCEPT ENGINE; Material: BRONZE ACTUATING ELEMENT. 28 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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