PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

E3P4J5A1Q0000Gage,pressure,dial Indicating

Bristol Babcock Inc Helicoid Instruments Div · NSN 6685-00-720-2960 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-720-2960 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-720-2960. Primary manufacturer part number: E3P4J5A1Q0000.
Features
  • Gage,pressure,dial Indicating — FSC 6685
  • Material: STEEL ACTUATING ELEMENT
  • Material: ALUMINUM CASE
  • Material: GLASS PROTECTIVE CRYSTAL
  • Adjustability: ADJUSTABLE
  • Scale Name: PRESSURE
  • Connection Location: BACK
  • Scale Inscription/background Color: WHITE FIGURES ON BLACK BACKGROUND
Applications
  • Applications requiring Steel Actuating Element construction
General Description

The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-00-720-2960, 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 24 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 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: Cancelled.

Technical Specifications
ParameterValue
NSN6685-00-720-2960
Primary Part NumberE3P4J5A1Q0000
Item NameGage,pressure,dial Indicating
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerBristol Babcock Inc Helicoid Instruments Div
StatusCANCELLED
MaterialSTEEL ACTUATING ELEMENT
MaterialALUMINUM CASE
MaterialGLASS PROTECTIVE CRYSTAL
AdjustabilityADJUSTABLE
Scale NamePRESSURE
Connection LocationBACK
Scale Inscription/background ColorWHITE FIGURES ON BLACK BACKGROUND
Actuation TypeSINGLE BOURDON TUBE
Scale TypeSINGLE
Scale Accuracy1/2 OF 1 PCT ENTIRE RANGE
Scale Name for Which Pointer Is DesignedPRESSURE
Bezel TypeSNAP-ON
Dial Size3-1/2 IN. DIA IN
Mounting MethodFLUSH PANEL AND BRACKET(S)
Pointer TypeINDICATING
Connector Type VentNOT PROVIDED
Pointer ColorWHITE
Graduation Unit500.0 POUNDS LBS
Scale Range+0.000 TO 5000.000 POUNDS PRESSURE PER SQUARE INCH LBS
Scale Smallest Increment50.0 POUNDS LBS
Connection TypeEXTERNAL
Connection Quantity1
Overall Diameter4.125 INCHES NOMINAL IN
Surface TreatmentENAMEL BAKED CASE
Lifecycle & Compliance
Acquisition StatusCANCELLED
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
6685-00-815-1809F3E6J1A0W0000 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
6685-00-843-4956 INTERCHANGEABLE
Gage,pressure,dial Indicating
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)
8928968 Us Army Aviation and Missile Command (USA)
HD-378 Bristol Babcock Inc Helicoid Instruments Div (USA)
E3P4J5A1Q0000 PRIMARY Bristol Babcock Inc Helicoid Instruments Div (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
6685-00-815-1809INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
F3E6J1A0W0000
6685-00-833-6077INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
HD290
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 6685-00-720-2960?

NSN 6685-00-720-2960 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 6685-00-720-2960?

NSN 6685-00-720-2960 has 4 cross-referenced part numbers: 430L (Bristol Babcock Inc Helicoid Instruments Div), 8928968 (Us Army Aviation and Missile Command), HD-378 (Bristol Babcock Inc Helicoid Instruments Div), E3P4J5A1Q0000 (Bristol Babcock Inc Helicoid Instruments Div).

What NSN replaces 6685-00-720-2960?

There are 11 known substitutes for 6685-00-720-2960: 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 E3P4J5A1Q0000?

Key specifications for E3P4J5A1Q0000: Material: STEEL ACTUATING ELEMENT; Material: ALUMINUM CASE; Material: GLASS PROTECTIVE CRYSTAL; Overall Depth: 3.531 INCHES NOMINAL IN. 25 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6685-00-720-2960 still in active supply?

NSN 6685-00-720-2960 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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