PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

J4646Gage,pressure,dial Indicating

Bellofram Corporation · NSN 6685-01-085-2495 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-01-085-2495 — this item is cataloged by the U.S. Government under National Stock Number 6685-01-085-2495. Primary manufacturer part number: J4646.
Features
  • Gage,pressure,dial Indicating — FSC 6685
  • Color: BLACK CASE
  • Surface Treatment: ENAMEL CASE
  • Material: GLASS PROTECTIVE CRYSTAL
  • Material: COPPER ALLOY ACTUATING ELEMENT
  • Material: STEEL CASE
  • Scale Inscription/background Color: BLACK FIGURES ON WHITE BACKGROUND
  • Overall Diameter: 2.750 INCHES NOMINAL IN
Applications
  • Applications requiring Glass Protective Crystal construction
General Description

The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-01-085-2495, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Bellofram Corporation. Government technical data includes 24 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN6685-01-085-2495
Primary Part NumberJ4646
Item NameGage,pressure,dial Indicating
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerBellofram Corporation
StatusCANCELLED
ColorBLACK CASE
Surface TreatmentENAMEL CASE
MaterialGLASS PROTECTIVE CRYSTAL
MaterialCOPPER ALLOY ACTUATING ELEMENT
MaterialSTEEL CASE
Scale Inscription/background ColorBLACK FIGURES ON WHITE BACKGROUND
Overall Diameter2.750 INCHES NOMINAL IN
Connection Quantity1
Connection TypeEXTERNAL
Scale TypeDIAL
Dial Size2-1/2 IN. DIA IN
Graduation Unit10.0 POUNDS PER SQUARE INCH LBS
Mounting MethodCONNECTION
Scale Range+0.0 TO 60.0 POUNDS PER SQUARE INCH LBS
Bezel TypeBAYONET
Scale AccuracyPORM 2 PCT. OF SPAN IN MIDDLE HALF,PORM 3 PCT. ELSEWHERE
Scale NamePRESSURE
Connector Type VentNOT PROVIDED
Actuation TypeBOURDON TUBE
Mounting Connection LocationBOTTOM
Pointer ColorBLACK
Connection Size0.250 IN. NPT IN
Scale Smallest Increment2.0 POUNDS PER SQUARE INCH (PSI) LBS
Connection LocationBOTTOM
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
5120-01-095-5593 INTERCHANGEABLE
Pliers,retaining Ring
Cross-Reference Index
Part NumberManufacturer
J4646 Desco Corp Marsh Bellofram Div (USA)
213 Technetics Group Llc Dba Technetics Group Deland Div Technetics Group Deland (USA)
G000047S1 L3harris Technologies, Inc Div Space & Airborne Systems (USA)
12273463 U S Army Tank Automotive Command Amsta-Im-Mm (USA)
6685010852495 E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales
J4646 PRIMARY Bellofram Corporation (USA)
Related Parts
5120-01-095-5593INTERCHANGEABLE
PLIERS,RETAINING RING

Frequently Asked Questions

What is NSN 6685-01-085-2495?

NSN 6685-01-085-2495 is a Gage,pressure,dial Indicating, manufactured by Bellofram Corporation, classified under FSC 6685 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6685-01-085-2495?

NSN 6685-01-085-2495 has 6 cross-referenced part numbers: J4646 (Desco Corp Marsh Bellofram Div), 213 (Technetics Group Llc Dba Technetics Group Deland Div Technetics Group Deland), G000047S1 (L3harris Technologies, Inc Div Space & Airborne Systems), 12273463 (U S Army Tank Automotive Command Amsta-Im-Mm), 6685010852495 (E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales) and 1 more.

What NSN replaces 6685-01-085-2495?

There is 1 known substitute for 6685-01-085-2495: 5120-01-095-5593. Verify interchangeability with system specifications before substitution.

What are the specifications of J4646?

Key specifications for J4646: Color: BLACK CASE; Surface Treatment: ENAMEL CASE; Material: GLASS PROTECTIVE CRYSTAL; Material: COPPER ALLOY ACTUATING ELEMENT. 25 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6685-01-085-2495 still in active supply?

NSN 6685-01-085-2495 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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