PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

HD290Gage,pressure,dial Indicating

Bristol Babcock Inc Helicoid Instruments Div · NSN 6685-00-833-6077 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-833-6077 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-833-6077. Primary manufacturer part number: HD290.
Features
  • Gage,pressure,dial Indicating — FSC 6685
  • Pointer Type: INDICATING
  • Actuation Type: SINGLE BOURDON TUBE
  • Color: BLACK CASE
  • Material: ALUMINUM AND ALUMINUM ALLOY CASE
  • Surface Treatment: PAINT CRACKLE FINISH CASE
  • Material: GLASS PROTECTIVE CRYSTAL
  • Material: STEEL ALLOY ACTUATING ELEMENT
Applications
  • Applications requiring Aluminum and Aluminum Alloy Case construction
General Description

The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-00-833-6077, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Bristol Babcock Inc Helicoid Instruments Div. Government technical data includes 28 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN6685-00-833-6077
Primary Part NumberHD290
Item NameGage,pressure,dial Indicating
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerBristol Babcock Inc Helicoid Instruments Div
StatusCANCELLED
Pointer TypeINDICATING
Actuation TypeSINGLE BOURDON TUBE
ColorBLACK CASE
MaterialALUMINUM AND ALUMINUM ALLOY CASE
Surface TreatmentPAINT CRACKLE FINISH CASE
MaterialGLASS PROTECTIVE CRYSTAL
MaterialSTEEL ALLOY ACTUATING ELEMENT
Overall Diameter4.750 INCHES NOMINAL IN
Mounting Hole Quantity3
Bolt Circle Diameter4.250 INCHES NOMINAL IN
Mounting Hole Diameter0.156 INCHES NOMINAL IN
Scale Accuracy1/2 OF 1 PCT ENTIRE RANGE
Graduation Unit200.000 POUNDS PER SQUARE INCH LBS
Scale Range+0.000 TO 2000.000 POUNDS PRESSURE PER SQUARE INCH LBS
Connection TypeEXTERNAL
Bezel TypeSNAP-ON
Scale NamePRESSURE
Dial Size3-1/2 IN. DIA IN
Mounting MethodFLUSH
Scale Inscription/background ColorBLACK FIGURES ON WHITE BACKGROUND
Connection Size0.500 IN. NPT IN
Connector Type VentNOT PROVIDED
Connection LocationBACK
Scale Smallest Increment20.000 POUNDS PER SQUARE INCH (PSI) LBS
AdjustabilityADJUSTABLE
Pointer ColorBLACK
Scale TypeSINGLE
Connection Quantity1
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
6685-00-004-7030E3P3K3A0L0000 INTERCHANGEABLE
Gage,pressure,dial Indicating
Bristol Babcock Inc Helicoid Instruments Div
5950-00-033-78632115985 INTERCHANGEABLE
Transformer,pulse
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
6685-00-117-5348 INTERCHANGEABLE
Gage,pressure,dial Indicating
6685-00-150-679045-430-1/2L-0/4000 INTERCHANGEABLE
Gage,pressure,dial Indicating
Bristol Babcock Inc Helicoid Instruments Div
6685-00-542-1742 INTERCHANGEABLE
Gage,pressure,dial Indicating
6685-00-623-92131YBH58177ATA INTERCHANGEABLE
Gage,pressure,dial Indicating
Bellofram Corporation
6685-00-720-2653HD-130 INTERCHANGEABLE
Gage,pressure,dial Indicating
Bristol Babcock Inc Helicoid Instruments Div
6685-00-720-2960E3P4J5A1Q0000 INTERCHANGEABLE
Gage,pressure,dial Indicating
Bristol Babcock Inc Helicoid Instruments Div
6685-00-815-1809F3E6J1A0W0000 INTERCHANGEABLE
Gage,pressure,dial Indicating
Bristol Babcock Inc Helicoid Instruments Div
6685-00-843-4956 INTERCHANGEABLE
Gage,pressure,dial Indicating
Cross-Reference Index
Part NumberManufacturer
HD290 PRIMARY Bristol Babcock Inc Helicoid Instruments Div (USA)
430L Bristol Babcock Inc Helicoid Instruments Div (USA)
Related Parts
6685-00-004-7030INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
E3P3K3A0L0000
5950-00-033-7863INTERCHANGEABLE
TRANSFORMER,PULSE
2115985
6685-00-117-5348INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
6685-00-150-6790INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
45-430-1/2L-0/4000
6685-00-542-1742INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
6685-00-623-9213INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
1YBH58177ATA
6685-00-720-2653INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
HD-130
6685-00-720-2960INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
E3P4J5A1Q0000
6685-00-815-1809INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
F3E6J1A0W0000
6685-00-843-4956INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
6685-00-951-5419INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
309-049
6685-00-973-4662INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING

Frequently Asked Questions

What is NSN 6685-00-833-6077?

NSN 6685-00-833-6077 is a Gage,pressure,dial Indicating, manufactured by Bristol Babcock Inc Helicoid Instruments Div, classified under FSC 6685 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6685-00-833-6077?

NSN 6685-00-833-6077 has 2 cross-referenced part numbers: HD290 (Bristol Babcock Inc Helicoid Instruments Div), 430L (Bristol Babcock Inc Helicoid Instruments Div).

What NSN replaces 6685-00-833-6077?

There are 12 known substitutes for 6685-00-833-6077: 6685-00-004-7030, 5950-00-033-7863, 6685-00-117-5348 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of HD290?

Key specifications for HD290: Pointer Type: INDICATING; Actuation Type: SINGLE BOURDON TUBE; Color: BLACK CASE; Material: ALUMINUM AND ALUMINUM ALLOY CASE. 29 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6685-00-833-6077 still in active supply?

NSN 6685-00-833-6077 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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