PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

G23891-23KB/GLASS LENSGage,pressure,dial Indicating

Bellofram Corporation · NSN 6685-00-726-1613 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-726-1613 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-726-1613. Primary manufacturer part number: G23891-23KB/GLASS LENS.
Features
  • Gage,pressure,dial Indicating — FSC 6685
  • Material: GLASS PROTECTIVE CRYSTAL
  • Material: COPPER ALLOY 511 ACTUATING ELEMENT
  • Material: STEEL AND STEEL CORROSION RESISTING CASE
  • Surface Treatment: ENAMEL CASE
  • Overall Diameter: 4.000 INCHES NOMINAL IN
  • Connection Size: 0.250 IN. NPT IN
  • Bezel Type: CRIMP
Applications
  • Applications requiring Glass Protective Crystal construction
General Description

The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-00-726-1613, 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 26 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 5 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
NSN6685-00-726-1613
Primary Part NumberG23891-23KB/GLASS LENS
Item NameGage,pressure,dial Indicating
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerBellofram Corporation
StatusCANCELLED
MaterialGLASS PROTECTIVE CRYSTAL
MaterialCOPPER ALLOY 511 ACTUATING ELEMENT
MaterialSTEEL AND STEEL CORROSION RESISTING CASE
Surface TreatmentENAMEL CASE
Overall Diameter4.000 INCHES NOMINAL IN
Connection Size0.250 IN. NPT IN
Bezel TypeCRIMP
Pointer TypeINDICATING
Scale Smallest Increment5.0 POUNDS PER SQUARE INCH (PSI) LBS
Stud Quantity2
Pointer ColorWHITE
Actuation TypeBOURDON TUBE
Scale TypeSINGLE
Connection Quantity1
AdjustabilityNONADJUSTABLE
Connector Type VentNOT PROVIDED
Unable to DecodeUNABLE TO DECODE
Graduation Unit40.0 POUNDS PER SQUARE INCH LBS
Scale Range+0.0 TO 200.0 POUNDS PRESSURE PER SQUARE INCH LBS
Scale Inscription/background ColorWHITE FIGURES ON BLACK BACKGROUND
Scale AccuracyPORM 2 PCT MIDDLE,3 PCT REMAINDER
Connection TypeEXTERNAL
Mounting MethodPANEL
Dial Size3-1/2 IN. DIA IN
Connection LocationBACK
Scale NamePRESSURE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
6685-00-052-7378164434 INTERCHANGEABLE
Gage,pressure,dial Indicating
Ametek, Inc. Div Aerospace & Defense
5306-00-150-9309 INTERCHANGEABLE
Bolt,machine
6685-00-248-6881164419 INTERCHANGEABLE
Gage,pressure,dial Indicating
Ametek, Inc. Div Aerospace & Defense
6685-00-264-3897P844UK INTERCHANGEABLE
Gage,pressure,dial Indicating
Ametek, Inc. Div Aerospace & Defense
6685-00-437-8347138026 INTERCHANGEABLE
Gage,pressure,dial Indicating
Ametek, Inc. Div Aerospace & Defense
6685-00-515-5385101003 INTERCHANGEABLE
Gage,pressure,dial Indicating
Ametek, Inc. Div Aerospace & Defense
6685-00-527-6163047375A INTERCHANGEABLE
Gage,pressure,dial Indicating
Ametek, Inc. Div Aerospace & Defense
6685-00-531-201982-4084 INTERCHANGEABLE
Gage,pressure,dial Indicating
Marshall Excelsior Co
6620-00-557-0210164427 INTERCHANGEABLE
Gage,pressure,dial Indicating
Ametek, Inc. Div Aerospace & Defense
6685-00-580-9565164433 INTERCHANGEABLE
Gage,pressure,dial Indicating
Ametek, Inc. Div Aerospace & Defense
Cross-Reference Index
Part NumberManufacturer
35-1001-02B-X4RTPUC-200 Ashcroft Inc Dba Heise (USA)
P844U Ametek, Inc. Div Aerospace & Defense (USA)
60-83-2 Dresser Industries Inc Leroi Div (USA)
GAG304 Worthington Compressors Inc Air Power and Construction Equip Div (USA)
G23891-23KB/GLASS LENS PRIMARY Bellofram Corporation (USA)
010671 Ametek, Inc. Div Aerospace & Defense (USA)
138029-P844U Ametek, Inc. Div Aerospace & Defense (USA)
Related Parts
6685-00-052-7378INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
164434
5306-00-150-9309INTERCHANGEABLE
BOLT,MACHINE
6685-00-248-6881INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
164419
6685-00-264-3897INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
P844UK
6685-00-437-8347INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
138026
6685-00-515-5385INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
101003
6685-00-527-6163INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
047375A
6685-00-531-2019INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
82-4084
6620-00-557-0210INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
164427
6685-00-580-9565INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
164433
6685-00-581-2688INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
164432
6685-00-585-1141INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING

Frequently Asked Questions

What is NSN 6685-00-726-1613?

NSN 6685-00-726-1613 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 6685-00-726-1613?

NSN 6685-00-726-1613 has 7 cross-referenced part numbers: 35-1001-02B-X4RTPUC-200 (Ashcroft Inc Dba Heise), P844U (Ametek, Inc. Div Aerospace & Defense), 60-83-2 (Dresser Industries Inc Leroi Div), GAG304 (Worthington Compressors Inc Air Power and Construction Equip Div), G23891-23KB/GLASS LENS (Bellofram Corporation) and 2 more.

What NSN replaces 6685-00-726-1613?

There are 12 known substitutes for 6685-00-726-1613: 6685-00-052-7378, 5306-00-150-9309, 6685-00-248-6881 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of G23891-23KB/GLASS LENS?

Key specifications for G23891-23KB/GLASS LENS: Material: GLASS PROTECTIVE CRYSTAL; Material: COPPER ALLOY 511 ACTUATING ELEMENT; Material: STEEL AND STEEL CORROSION RESISTING CASE; Surface Treatment: ENAMEL CASE. 28 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6685-00-726-1613 still in active supply?

NSN 6685-00-726-1613 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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