PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

45-1339A02B300Gage,pressure,dial Indicating

Ashcroft Inc Dba Heise · NSN 6685-00-829-1966 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-829-1966 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-829-1966. Primary manufacturer part number: 45-1339A02B300.
Features
  • Gage,pressure,dial Indicating — FSC 6685
  • Bolt Circle Diameter: 5.375 INCHES NOMINAL IN
  • Color: BLACK CASE
  • Material: GLASS PROTECTIVE CRYSTAL
  • FSC Application Data: GAGE,PRESSURE,DIAL INDICATING,EXCEPT ENGINE
  • Surface Treatment: PAINT EPOXY CASE
  • Material: ALUMINUM CASE
  • Material: BRONZE ACTUATING ELEMENT
Applications
  • Applications requiring Glass Protective Crystal construction
General Description

The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-00-829-1966, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Ashcroft Inc Dba Heise. Government technical data includes 29 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN6685-00-829-1966
Primary Part Number45-1339A02B300
Item NameGage,pressure,dial Indicating
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerAshcroft Inc Dba Heise
StatusCANCELLED
Bolt Circle Diameter5.375 INCHES NOMINAL IN
ColorBLACK CASE
MaterialGLASS PROTECTIVE CRYSTAL
FSC Application DataGAGE,PRESSURE,DIAL INDICATING,EXCEPT ENGINE
Surface TreatmentPAINT EPOXY CASE
MaterialALUMINUM CASE
MaterialBRONZE ACTUATING ELEMENT
Connection TypeEXTERNAL
Pointer TypeINDICATING
Scale Accuracy1 PCT ENTIRE RANGE
Dial Size4-1/2 IN. DIA IN
Connection LocationBACK
Scale TypeSINGLE
Connector Type VentNOT PROVIDED
Scale Range+0.0 TO 300.0 POUNDS PRESSURE PER SQUARE INCH LBS
Graduation Unit25.0 POUNDS LBS
Pointer ColorBLACK AND RED
Bezel TypeHINGE
Actuation TypeDOUBLE BOURDON TUBE
Pointer MarkingBH,RH
Stud Quantity3
Scale Smallest Increment5.0 POUNDS LBS
Connection Size1/4 IN. NPT IN
AdjustabilityNONADJUSTABLE
Stud LocationBEHIND FLANGE
Scale NamePRESSURE
Mounting MethodFLUSH PANEL AND STUD(S)
Connection Quantity2
Overall Diameter6.062 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 10
6685-00-067-929645-1339A02BX6AFDRBMPSGAN100 INTERCHANGEABLE
Gage,pressure,dial Indicating
Ashcroft Inc Dba Heise
6685-00-067-931045-1339A-02B-XSG-0/1000PSI INTERCHANGEABLE
Gage,pressure,dial Indicating
Ashcroft Inc Dba Heise
6685-00-081-350445-1339A02BXRB100 INTERCHANGEABLE
Gage,pressure,dial Indicating
Ashcroft Inc Dba Heise
6685-00-251-075945-1339A02B30 INTERCHANGEABLE
Gage,pressure,dial Indicating
Ashcroft Inc Dba Heise
6685-00-551-228645-1339A2B600 INTERCHANGEABLE
Gage,pressure,dial Indicating
Ashcroft Inc Dba Heise
6685-00-585-443045-1339A02B200 INTERCHANGEABLE
Gage,pressure,dial Indicating
Ashcroft Inc Dba Heise
4940-00-712-0386 INTERCHANGEABLE
Auger Machine,pipe and Sewer,pow
6685-00-809-2846 INTERCHANGEABLE
Gage,pressure,dial Indicating
6685-00-892-5458 INTERCHANGEABLE
Gage,pressure,dial Indicating
6685-00-921-082745-1339A-02B-60 INTERCHANGEABLE
Gage,pressure,dial Indicating
Ashcroft Inc Dba Heise
Cross-Reference Index
Part NumberManufacturer
1639A Ametek, Inc. Div Aerospace & Defense (USA)
1339A Ashcroft Inc Dba Heise (USA)
45-1339A02B300 PRIMARY Ashcroft Inc Dba Heise (USA)
Related Parts
6685-00-067-9296INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
45-1339A02BX6AFDRBMPSGAN100
6685-00-067-9310INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
45-1339A-02B-XSG-0/1000PSI
6685-00-081-3504INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
45-1339A02BXRB100
6685-00-251-0759INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
45-1339A02B30
6685-00-551-2286INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
45-1339A2B600
6685-00-585-4430INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
45-1339A02B200
4940-00-712-0386INTERCHANGEABLE
AUGER MACHINE,PIPE AND SEWER,POW
6685-00-809-2846INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
6685-00-892-5458INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
6685-00-921-0827INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
45-1339A-02B-60

Frequently Asked Questions

What is NSN 6685-00-829-1966?

NSN 6685-00-829-1966 is a Gage,pressure,dial Indicating, manufactured by Ashcroft Inc Dba Heise, classified under FSC 6685 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6685-00-829-1966?

NSN 6685-00-829-1966 has 3 cross-referenced part numbers: 1639A (Ametek, Inc. Div Aerospace & Defense), 1339A (Ashcroft Inc Dba Heise), 45-1339A02B300 (Ashcroft Inc Dba Heise).

What NSN replaces 6685-00-829-1966?

There are 10 known substitutes for 6685-00-829-1966: 6685-00-067-9296, 6685-00-067-9310, 6685-00-081-3504 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 45-1339A02B300?

Key specifications for 45-1339A02B300: Overall Depth: 2.188 INCHES NOMINAL IN; Bolt Circle Diameter: 5.375 INCHES NOMINAL IN; Color: BLACK CASE; Material: GLASS PROTECTIVE CRYSTAL. 30 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6685-00-829-1966 still in active supply?

NSN 6685-00-829-1966 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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