PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

J0640Gage,pressure,dial Indicating

Bellofram Corporation · NSN 6685-00-814-5691 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-814-5691 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-814-5691. Primary manufacturer part number: J0640.
Features
  • Gage,pressure,dial Indicating — FSC 6685
  • Material: GLASS PROTECTIVE CRYSTAL
  • Surface Treatment: ENAMEL CASE
  • Material: STEEL CASE
  • Material: BRONZE ACTUATING ELEMENT
  • Mounting Connection Location: BACK, CENTER
  • Connection Quantity: 1
  • Scale Range: +0.0 TO 15.0 POUNDS PRESSURE PER SQUARE INCH LBS
Applications
  • Applications requiring Glass Protective Crystal construction
General Description

The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-00-814-5691, 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 25 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 14 commercial cross-references from 8 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
NSN6685-00-814-5691
Primary Part NumberJ0640
Item NameGage,pressure,dial Indicating
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerBellofram Corporation
StatusCANCELLED
MaterialGLASS PROTECTIVE CRYSTAL
Surface TreatmentENAMEL CASE
MaterialSTEEL CASE
MaterialBRONZE ACTUATING ELEMENT
Mounting Connection LocationBACK, CENTER
Connection Quantity1
Scale Range+0.0 TO 15.0 POUNDS PRESSURE PER SQUARE INCH LBS
Scale Accuracy2 PCT HALF OF SCALE,3 PCT REMAINDER
AdjustabilityNONADJUSTABLE
Connector Type VentNOT PROVIDED
Pointer TypeINDICATING
Pointer ColorBLACK
Connection Size0.125 IN. NPT IN
Actuation TypeSINGLE BOURDON TUBE
Scale TypeSINGLE
Overall Diameter1.671 INCHES NOMINAL IN
Scale Smallest Increment0.5 POUNDS PER SQUARE INCH (PSI) LBS
Bezel TypeSLIPS-ON
Graduation Unit3.0 POUNDS PER SQUARE INCH LBS
Dial Size1-1/2 IN. DIA IN
Connection LocationBACK, CENTER
Connection TypeEXTERNAL
Scale Inscription/background ColorBLACK FIGURES ON WHITE BACKGROUND
Mounting MethodRIGID STEM
Scale NamePRESSURE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
2010-00-213-04893373463 INTERCHANGEABLE
Collar,ring
Eaton Corporation Dba Airflex Div Div Airflex
5935-00-258-441226-25 INTERCHANGEABLE
Connector,plug,electrical
Entron Industries Limited Partnership Dba Entron Industries Property Div
5915-00-333-9905 INTERCHANGEABLE
Network,pulse Forming
6250-00-349-33778770675 INTERCHANGEABLE
Lampholder
Army, United States Department of the Dba Watervliet Arsenal Div Business Development
5935-00-504-4713 INTERCHANGEABLE
Adapter,connector
5340-00-530-5342394074PC6 INTERCHANGEABLE
Bumper
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
6640-00-556-67066886-87L INTERCHANGEABLE
Jar,bell
Corning Glass Works
5961-00-730-8818 INTERCHANGEABLE
Transistor
5365-00-813-2030 INTERCHANGEABLE
Shim
4820-00-957-55122625 INTERCHANGEABLE
Seat Ring
Spence Engineering Co Inc Dba Nicholson Steam Trap
Cross-Reference Index
Part NumberManufacturer
G10840-23KC Liftec Inc Div Liftec, Inc. (USA)
516 Ametek, Inc. Div Aerospace & Defense (USA)
1ABA00100AYC Desco Corp Marsh Bellofram Div (USA)
2625 Ametek Power Instruments Div Rochester Instruments (USA)
15-1000-01B15 Ashcroft Inc Dba Heise (USA)
P500 Ametek, Inc. Div Aerospace & Defense (USA)
146010A Ametek, Inc. Div Aerospace & Defense (USA)
005369 Ametek, Inc. Div Aerospace & Defense (USA)
J0640 PRIMARY Bellofram Corporation (USA)
579R764H01 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA)
1ABA00100AYC Bellofram Corporation (USA)
1 1-2 1DP1-8CBM15 Desco Corp Marsh Bellofram Div (USA)
435A985-045-3 Goodyear Tire and Rubber Co the (USA)
15-1005-01B-0/15PSI Ashcroft Inc Dba Heise (USA)
Related Parts
2010-00-213-0489INTERCHANGEABLE
COLLAR,RING
3373463
5935-00-258-4412INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
26-25
5915-00-333-9905INTERCHANGEABLE
NETWORK,PULSE FORMING
6250-00-349-3377INTERCHANGEABLE
LAMPHOLDER
8770675
5935-00-504-4713INTERCHANGEABLE
ADAPTER,CONNECTOR
5340-00-530-5342INTERCHANGEABLE
BUMPER
394074PC6
6640-00-556-6706INTERCHANGEABLE
JAR,BELL
6886-87L
5961-00-730-8818INTERCHANGEABLE
TRANSISTOR
5365-00-813-2030INTERCHANGEABLE
SHIM
4820-00-957-5512INTERCHANGEABLE
SEAT RING
2625
5910-01-099-4498INTERCHANGEABLE
CAPACITOR
2625
6680-01-174-6276INTERCHANGEABLE
REGULATOR,PRESSURE,MEDICAL GAS A

Frequently Asked Questions

What is NSN 6685-00-814-5691?

NSN 6685-00-814-5691 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 6685-00-814-5691?

NSN 6685-00-814-5691 has 14 cross-referenced part numbers: G10840-23KC (Liftec Inc Div Liftec, Inc.), 516 (Ametek, Inc. Div Aerospace & Defense), 1ABA00100AYC (Desco Corp Marsh Bellofram Div), 2625 (Ametek Power Instruments Div Rochester Instruments), 15-1000-01B15 (Ashcroft Inc Dba Heise) and 9 more.

What NSN replaces 6685-00-814-5691?

There are 12 known substitutes for 6685-00-814-5691: 2010-00-213-0489, 5935-00-258-4412, 5915-00-333-9905 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of J0640?

Key specifications for J0640: Overall Depth: 0.843 INCHES NOMINAL IN; Material: GLASS PROTECTIVE CRYSTAL; Surface Treatment: ENAMEL CASE; Material: STEEL CASE. 26 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6685-00-814-5691 still in active supply?

NSN 6685-00-814-5691 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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