PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

45-1339A02B30Gage,pressure,dial Indicating

Ashcroft Inc Dba Heise · NSN 6685-00-251-0759 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-251-0759 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-251-0759. Primary manufacturer part number: 45-1339A02B30.
Features
  • Gage,pressure,dial Indicating — FSC 6685
  • Color: BLACK CASE
  • Bolt Circle Diameter: 5.375 INCHES NOMINAL IN
  • Material: ALUMINUM AND STEEL CASE
  • Surface Treatment: PAINT EPOXY CASE
  • Overall Diameter: 6.063 INCHES NOMINAL IN
  • Material: COPPER ALLOY 511 ACTUATING ELEMENT
  • Material: GLASS PROTECTIVE CRYSTAL
Applications
  • Applications requiring Aluminum and Steel Case construction
General Description

The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-00-251-0759, 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 28 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN6685-00-251-0759
Primary Part Number45-1339A02B30
Item NameGage,pressure,dial Indicating
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerAshcroft Inc Dba Heise
StatusCANCELLED
ColorBLACK CASE
Bolt Circle Diameter5.375 INCHES NOMINAL IN
MaterialALUMINUM AND STEEL CASE
Surface TreatmentPAINT EPOXY CASE
Overall Diameter6.063 INCHES NOMINAL IN
MaterialCOPPER ALLOY 511 ACTUATING ELEMENT
MaterialGLASS PROTECTIVE CRYSTAL
Stud LocationPANEL FLANGE
Connection LocationBACK, LOWER
Connection TypeEXTERNAL
Connection Quantity2
Graduation Unit5.0 POUNDS LBS
Pointer TypeINDICATING
AdjustabilityNONADJUSTABLE
Stud Quantity3
Actuation TypeDOUBLE BOURDON TUBE
Connector Type VentNOT PROVIDED
Connection Size0.250 IN. NPT DIA IN
Scale Accuracy1 PCT
Dial Size4-1/2 IN. DIA IN
Bezel TypeHINGE
Scale Smallest Increment0.5 POUNDS PER SQUARE INCH (PSI) LBS
Scale Range+0.0 TO 30.0 POUNDS PRESSURE PER SQUARE INCH LBS
Scale Inscription/background ColorBLACK FIGURES ON WHITE BACKGROUND
Scale TypeSINGLE
Mounting MethodFLUSH PANEL AND STUD(S)
Scale NamePRESSURE
Pointer ColorBLACK AND RED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 9
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
6685-00-551-228645-1339A2B600 INTERCHANGEABLE
Gage,pressure,dial Indicating
Ashcroft Inc Dba Heise
6685-00-585-443045-1339A02B200 INTERCHANGEABLE
Gage,pressure,dial Indicating
Ashcroft Inc Dba Heise
6685-00-809-2846 INTERCHANGEABLE
Gage,pressure,dial Indicating
6685-00-829-196645-1339A02B300 INTERCHANGEABLE
Gage,pressure,dial Indicating
Ashcroft Inc Dba Heise
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
45-1339A02B30 PRIMARY Ashcroft Inc Dba Heise (USA)
1339A Ashcroft Inc Dba Heise (USA)
1339AX 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
6685-00-551-2286INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
45-1339A2B600
6685-00-585-4430INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
45-1339A02B200
6685-00-809-2846INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
6685-00-829-1966INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
45-1339A02B300
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 6685-00-251-0759?

NSN 6685-00-251-0759 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 6685-00-251-0759?

NSN 6685-00-251-0759 has 3 cross-referenced part numbers: 45-1339A02B30 (Ashcroft Inc Dba Heise), 1339A (Ashcroft Inc Dba Heise), 1339AX (Ashcroft Inc Dba Heise).

What NSN replaces 6685-00-251-0759?

There are 9 known substitutes for 6685-00-251-0759: 6685-00-067-9296, 6685-00-067-9310, 6685-00-081-3504 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 45-1339A02B30?

Key specifications for 45-1339A02B30: Color: BLACK CASE; Bolt Circle Diameter: 5.375 INCHES NOMINAL IN; Material: ALUMINUM AND STEEL CASE; Surface Treatment: PAINT EPOXY CASE. 29 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6685-00-251-0759 still in active supply?

NSN 6685-00-251-0759 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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