PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

124055Gage,pressure,dial Indicating

Long-Airdox Co · NSN 6685-00-973-4662 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-973-4662 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-973-4662. Primary manufacturer part number: 124055.
Features
  • Gage,pressure,dial Indicating — FSC 6685
  • Mounting Hole Diameter: 0.219 INCHES NOMINAL IN
  • Bolt Circle Diameter: 5.375 INCHES NOMINAL IN
  • Surface Treatment: ENAMEL CASE
  • Material: STEEL ACTUATING ELEMENT
  • FSC Application Data: GAGE,PRESSURE,DIAL INDICATING,EXCEPT ENGINE
  • Material: ALUMINUM CASE
  • Material: GLASS PROTECTIVE CRYSTAL
Applications
  • Applications requiring Steel Actuating Element construction
General Description

The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-00-973-4662, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Long-Airdox Co. Government technical data includes 27 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, 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
NSN6685-00-973-4662
Primary Part Number124055
Item NameGage,pressure,dial Indicating
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerLong-Airdox Co
StatusCANCELLED
Mounting Hole Diameter0.219 INCHES NOMINAL IN
Bolt Circle Diameter5.375 INCHES NOMINAL IN
Surface TreatmentENAMEL CASE
MaterialSTEEL ACTUATING ELEMENT
FSC Application DataGAGE,PRESSURE,DIAL INDICATING,EXCEPT ENGINE
MaterialALUMINUM CASE
MaterialGLASS PROTECTIVE CRYSTAL
Scale Smallest Increment200.000 POUNDS PER SQUARE INCH (PSI) LBS
Connector Type VentNOT PROVIDED
Scale TypeSINGLE
Scale Range+0.000 TO 16000.000 POUNDS PRESSURE PER SQUARE INCH LBS
Connection Quantity1
Actuation TypeSINGLE BOURDON TUBE
Connection LocationBACK
Scale NamePRESSURE
Pointer TypeINDICATING
Dial Size4-1/2 IN. DIA IN
Graduation Unit2000.000 POUNDS PER SQUARE INCH LBS
Pointer ColorBLACK
AdjustabilityADJUSTABLE
Mounting MethodFLUSH PANEL
Scale Accuracy1/2 OF 1 PCT ENTIRE RANGE
Scale Inscription/background ColorBLACK FIGURES ON WHITE BACKGROUND
Connection TypeEXTERNAL
Connection Size0.250 IN. NPT DIA IN
Overall Diameter5.938 INCHES NOMINAL IN
Mounting Hole Quantity3
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
6685-00-004-7030E3P3K3A0L0000 INTERCHANGEABLE
Gage,pressure,dial Indicating
Bristol Babcock Inc Helicoid Instruments Div
5305-00-012-405553425 INTERCHANGEABLE
Screw,machine
Am General Llc
3040-00-057-9358181221 INTERCHANGEABLE
Pawl
Telemechanics Inc
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
Cross-Reference Index
Part NumberManufacturer
124055 Long-Airdox Co (USA)
181221 Marmon-Herrington Company (USA)
430L Bristol Babcock Inc Helicoid Instruments Div (USA)
7192-0012 Marmon-Herrington Company (USA)
Related Parts
6685-00-004-7030INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
E3P3K3A0L0000
5305-00-012-4055INTERCHANGEABLE
SCREW,MACHINE
53425
3040-00-057-9358INTERCHANGEABLE
PAWL
181221
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
6685-00-843-4956INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING

Frequently Asked Questions

What is NSN 6685-00-973-4662?

NSN 6685-00-973-4662 is a Gage,pressure,dial Indicating, manufactured by Long-Airdox Co, classified under FSC 6685 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6685-00-973-4662?

NSN 6685-00-973-4662 has 4 cross-referenced part numbers: 124055 (Long-Airdox Co), 181221 (Marmon-Herrington Company), 430L (Bristol Babcock Inc Helicoid Instruments Div), 7192-0012 (Marmon-Herrington Company).

What NSN replaces 6685-00-973-4662?

There are 12 known substitutes for 6685-00-973-4662: 6685-00-004-7030, 5305-00-012-4055, 3040-00-057-9358 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 124055?

Key specifications for 124055: Mounting Hole Diameter: 0.219 INCHES NOMINAL IN; Bolt Circle Diameter: 5.375 INCHES NOMINAL IN; Surface Treatment: ENAMEL CASE; Material: STEEL ACTUATING ELEMENT. 29 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6685-00-973-4662 still in active supply?

NSN 6685-00-973-4662 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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