PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

G3138Gage,pressure,dial Indicating

Rogerson Kratos · NSN 6685-00-056-2479 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-056-2479 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-056-2479. Primary manufacturer part number: G3138.
Features
  • Gage,pressure,dial Indicating — FSC 6685
  • Overall Diameter: 1.000 INCHES NOMINAL IN
  • Scale Accuracy: PORM 4 PCT ENTIRE RANGE
  • Connector Type Vent: NOT PROVIDED
  • FSC Application Data: GAGE,PRESSURE,DIAL INDICATING,EXCEPT ENGINE
  • Connection Size: 0.250 IN. NPT DIA IN
  • Scale Inscription/background Color: BLACK FIGURES,WHITE BACKGROUND
  • Mounting Connection Location: BACK, CENTER
Applications
  • Applications requiring Steel Corrosion Resisting Case construction
General Description

The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-00-056-2479, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Rogerson Kratos. Government technical data includes 25 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 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
NSN6685-00-056-2479
Primary Part NumberG3138
Item NameGage,pressure,dial Indicating
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerRogerson Kratos
StatusACTIVE
Overall Diameter1.000 INCHES NOMINAL IN
Scale AccuracyPORM 4 PCT ENTIRE RANGE
Connector Type VentNOT PROVIDED
FSC Application DataGAGE,PRESSURE,DIAL INDICATING,EXCEPT ENGINE
Connection Size0.250 IN. NPT DIA IN
Scale Inscription/background ColorBLACK FIGURES,WHITE BACKGROUND
Mounting Connection LocationBACK, CENTER
Mounting MethodRIGID STEM
MaterialSTEEL CORROSION RESISTING CASE
Connection LocationBACK, CENTER
Nondefinitive Spec/std Data1 POLISHED
MaterialPLASTIC ACRYLIC PROTECTIVE CRYSTAL
MaterialCOPPER ALLOY ACTUATING ELEMENT
Actuation TypeSINGLE COIL HELICAL BOURDON TUBE
Unable to DecodeUNABLE TO DECODE
Scale Smallest Increment100.0 POUNDS PER SQUARE INCH (PSI) LBS
Scale NamePRESSURE
Pointer TypeINDICATING
Scale TypeSINGLE
Scale Range+0.0 TO 1500.0 POUNDS PRESSURE PER SQUARE INCH LBS
Pointer ColorBLACK
AdjustabilityNONADJUSTABLE
Graduation Unit500.0 POUNDS PER SQUARE INCH LBS
Connection Quantity1
Dial Size3/4 INCH DIA. IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5935-00-928-7861 INTERCHANGEABLE
Connector,receptacle,electrical
5998-01-508-8897 INTERCHANGEABLE
Circuit Card Assembly
5325-01-663-089012607835 INTERCHANGEABLE
Grommet,nonmetallic
U S Army Tank Automotive Command Amsta-Im-Mm
Cross-Reference Index
Part NumberManufacturer
G3138 PRIMARY Rogerson Kratos (USA)
62A5A208-3 Naval Air Warfare Center Aircraft Div (USA)
Related Parts
5935-00-928-7861INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
5998-01-508-8897INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
5325-01-663-0890INTERCHANGEABLE
GROMMET,NONMETALLIC
12607835

Frequently Asked Questions

What is NSN 6685-00-056-2479?

NSN 6685-00-056-2479 is a Gage,pressure,dial Indicating, manufactured by Rogerson Kratos, classified under FSC 6685 (No Item Name Available). Status: active.

What are the part numbers for NSN 6685-00-056-2479?

NSN 6685-00-056-2479 has 2 cross-referenced part numbers: G3138 (Rogerson Kratos), 62A5A208-3 (Naval Air Warfare Center Aircraft Div).

What NSN replaces 6685-00-056-2479?

There are 3 known substitutes for 6685-00-056-2479: 5935-00-928-7861, 5998-01-508-8897, 5325-01-663-0890. Verify interchangeability with system specifications before substitution.

What are the specifications of G3138?

Key specifications for G3138: Overall Diameter: 1.000 INCHES NOMINAL IN; Scale Accuracy: PORM 4 PCT ENTIRE RANGE; Connector Type Vent: NOT PROVIDED; FSC Application Data: GAGE,PRESSURE,DIAL INDICATING,EXCEPT ENGINE. 27 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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