PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

430LGage,pressure,dial Indicating

Bristol Babcock Inc Helicoid Instruments Div · NSN 6685-00-843-4956 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-843-4956 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-843-4956. Primary manufacturer part number: 430L.
Features
  • Gage,pressure,dial Indicating — FSC 6685
  • Overall Diameter: 4.750 INCHES NOMINAL IN
  • Material: PLASTIC CASE
  • Material: PLASTIC PROTECTIVE CRYSTAL
  • Material: STEEL ALLOY ACTUATING ELEMENT
  • Scale Smallest Increment: 20.000 POUNDS LBS
  • Bolt Circle Diameter: 4.250 INCHES NOMINAL IN
  • Connection Quantity: 1
Applications
  • Applications requiring Plastic Case construction
General Description

The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-00-843-4956, 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 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. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6685-00-843-4956
Primary Part Number430L
Item NameGage,pressure,dial Indicating
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerBristol Babcock Inc Helicoid Instruments Div
StatusACTIVE
Overall Diameter4.750 INCHES NOMINAL IN
MaterialPLASTIC CASE
MaterialPLASTIC PROTECTIVE CRYSTAL
MaterialSTEEL ALLOY ACTUATING ELEMENT
Scale Smallest Increment20.000 POUNDS LBS
Bolt Circle Diameter4.250 INCHES NOMINAL IN
Connection Quantity1
Pointer ColorBLACK
Scale Accuracy1 PCT ENTIRE RANGE
Connection TypeEXTERNAL
Scale Inscription/background ColorBLACK FIGURES ON WHITE BACKGROUND
Connection LocationLOWER
Graduation Unit200.000 POUNDS LBS
Mounting Hole Quantity3
Mounting MethodFLUSH
Connection Size0.500 IN. NPT DIA IN
Scale TypeSINGLE
Pointer TypeINDICATING
Connector Type VentNOT PROVIDED
Dial Size3-1/2 IN. DIA IN
Scale NamePRESSURE
Actuation TypeSINGLE BOURDON TUBE
AdjustabilityADJUSTABLE
Scale Range+0.0 TO 2000.0 POUNDS PRESSURE PER SQUARE INCH LBS
Mounting Hole Diameter0.156 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
6685-00-004-7030E3P3K3A0L0000 INTERCHANGEABLE
Gage,pressure,dial Indicating
Bristol Babcock Inc Helicoid Instruments Div
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
6685-00-833-6077HD290 INTERCHANGEABLE
Gage,pressure,dial Indicating
Bristol Babcock Inc Helicoid Instruments Div
6685-00-951-5419309-049 INTERCHANGEABLE
Gage,pressure,dial Indicating
Jaidinger Manufacturing Co Inc Dba Jaidinger Manufacturing Co Inc
Cross-Reference Index
Part NumberManufacturer
430L Bristol Babcock Inc Helicoid Instruments Div (USA)
1779007 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
Related Parts
6685-00-004-7030INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
E3P3K3A0L0000
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
6685-00-833-6077INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
HD290
6685-00-951-5419INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
309-049
6685-00-973-4662INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING

Frequently Asked Questions

What is NSN 6685-00-843-4956?

NSN 6685-00-843-4956 is a Gage,pressure,dial Indicating, manufactured by Bristol Babcock Inc Helicoid Instruments Div, classified under FSC 6685 (No Item Name Available). Status: active.

What are the part numbers for NSN 6685-00-843-4956?

NSN 6685-00-843-4956 has 2 cross-referenced part numbers: 430L (Bristol Babcock Inc Helicoid Instruments Div), 1779007 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).

What NSN replaces 6685-00-843-4956?

There are 11 known substitutes for 6685-00-843-4956: 6685-00-004-7030, 6685-00-117-5348, 6685-00-150-6790 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 430L?

Key specifications for 430L: Overall Diameter: 4.750 INCHES NOMINAL IN; Material: PLASTIC CASE; Material: PLASTIC PROTECTIVE CRYSTAL; Material: STEEL ALLOY ACTUATING ELEMENT. 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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