PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

531-7015135-GA-109Gage,pressure,dial Indicating

Naval Sea Systems Command · NSN 6685-01-501-1204 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-01-501-1204 — this item is cataloged by the U.S. Government under National Stock Number 6685-01-501-1204. Primary manufacturer part number: 531-7015135-GA-109.
Features
  • Gage,pressure,dial Indicating — FSC 6685
  • Actuation Type: BOURDON TUBE
  • Pointer Type: INDICATING
  • Scale Name: POUNDS PRESSURE
  • Material: STEEL CORROSION RESISTING ACTUATING ELEMENT
  • Connector Type Vent: NOT PROVIDED
  • Connection Size: 7/16-20 UNF FLARELESS
  • Connection Location: BACK
Applications
  • Applications requiring Steel Corrosion Resisting Actuating Element construction
General Description

The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-01-501-1204, 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 Sea Systems Command. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6685-01-501-1204
Primary Part Number531-7015135-GA-109
Item NameGage,pressure,dial Indicating
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerNaval Sea Systems Command
StatusACTIVE
Actuation TypeBOURDON TUBE
Pointer TypeINDICATING
Scale NamePOUNDS PRESSURE
MaterialSTEEL CORROSION RESISTING ACTUATING ELEMENT
Connector Type VentNOT PROVIDED
Connection Size7/16-20 UNF FLARELESS
Connection LocationBACK
Scale TypeDIAL
Mounting MethodFLUSH
AdjustabilityNONADJUSTABLE
Graduation Unit100.0 POUNDS PER SQUARE INCH LBS
Connection Quantity1
Connection TypeEXTERNAL
Dial Size3.5INCH IN
Pointer ColorANY ACCEPTABLE
Scale Range+0.0 TO 800.0 POUNDS PRESSURE PER SQUARE INCH LBS
Scale Smallest Increment20.0 POUNDS PER SQUARE INCH (PSI) LBS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
6685-01-481-2073 INTERCHANGEABLE
Thermometer,indicating,capillary
6685-01-501-0899 INTERCHANGEABLE
Dampener,fluid Pressure
6685-01-501-1301 INTERCHANGEABLE
Gage,pressure,dial Indicating
6685-01-501-1312 INTERCHANGEABLE
Gage,pressure,dial Indicating
6695-01-501-7477H728-4401-A2 INTERCHANGEABLE
Panel,indicator
Electric Boat Corporation Div General Dynamics Electric Boat
6695-01-501-7479H728-4401-A1 INTERCHANGEABLE
Panel,indicator
Electric Boat Corporation Div General Dynamics Electric Boat
Cross-Reference Index
Part NumberManufacturer
531-7015135-GA-109 Naval Sea Systems Command (USA)
H728-4401 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
19-07-3030E Electric Boat Corporation Div General Dynamics Electric Boat (USA)
SG3MC8HPWCANA Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-G-18997 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
531-7015135 Naval Sea Systems Command (USA)
SG3MC8HPWCANAG Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
531-7015135-GA-209 Naval Sea Systems Command (USA)
EA23-3POF-RWBO Ashcroft Inc Dba Heise (USA)
Related Parts
6685-01-481-2073INTERCHANGEABLE
THERMOMETER,INDICATING,CAPILLARY
6685-01-501-0899INTERCHANGEABLE
DAMPENER,FLUID PRESSURE
6685-01-501-1301INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
6685-01-501-1312INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
6695-01-501-7477INTERCHANGEABLE
PANEL,INDICATOR
H728-4401-A2
6695-01-501-7479INTERCHANGEABLE
PANEL,INDICATOR
H728-4401-A1

Frequently Asked Questions

What is NSN 6685-01-501-1204?

NSN 6685-01-501-1204 is a Gage,pressure,dial Indicating, manufactured by Naval Sea Systems Command, classified under FSC 6685 (No Item Name Available). Status: active.

What are the part numbers for NSN 6685-01-501-1204?

NSN 6685-01-501-1204 has 9 cross-referenced part numbers: 531-7015135-GA-109 (Naval Sea Systems Command), H728-4401 (Electric Boat Corporation Div General Dynamics Electric Boat), 19-07-3030E (Electric Boat Corporation Div General Dynamics Electric Boat), SG3MC8HPWCANA (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-G-18997 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 4 more.

What NSN replaces 6685-01-501-1204?

There are 6 known substitutes for 6685-01-501-1204: 6685-01-481-2073, 6685-01-501-0899, 6685-01-501-1301 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 531-7015135-GA-109?

Key specifications for 531-7015135-GA-109: Actuation Type: BOURDON TUBE; Pointer Type: INDICATING; Scale Name: POUNDS PRESSURE; Material: STEEL CORROSION RESISTING ACTUATING ELEMENT. 17 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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