PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AA442PM4RWGage,pressure,dial Indicating

Ashcroft Inc Dba Heise · NSN 6685-00-065-1485 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-065-1485 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-065-1485. Primary manufacturer part number: AA442PM4RW.
Features
  • Gage,pressure,dial Indicating — FSC 6685
  • Bolt Circle Diameter: 5.375 INCHES NOMINAL IN
  • Mounting Method: SURFACE WALL
  • Connector Type Vent: NOT PROVIDED
  • Scale Inscription/background Color: BLACK FIGURES ON WHITE BACKGROUND
  • Connection Location: BACK
  • Connection Size: 0.250 IN. NPT IN
  • Mounting Hole Quantity: 3
Applications
  • Applications requiring Glass Protective Crystal construction
General Description

The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-00-065-1485, 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 25 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 3 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
NSN6685-00-065-1485
Primary Part NumberAA442PM4RW
Item NameGage,pressure,dial Indicating
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerAshcroft Inc Dba Heise
StatusCANCELLED
Bolt Circle Diameter5.375 INCHES NOMINAL IN
Mounting MethodSURFACE WALL
Connector Type VentNOT PROVIDED
Scale Inscription/background ColorBLACK FIGURES ON WHITE BACKGROUND
Connection LocationBACK
Connection Size0.250 IN. NPT IN
Mounting Hole Quantity3
MaterialGLASS PROTECTIVE CRYSTAL
MaterialPLASTIC PHENOLIC CASE
Graduation Unit50.0 POUNDS PER SQUARE INCH LBS
Dial Size4-1/2 IN. DIA IN
Overall Diameter5.812 INCHES NOMINAL IN
Connection Quantity1
Scale Smallest Increment5.0 POUNDS PER SQUARE INCH (PSI) LBS
Actuation TypeSINGLE BOURDON TUBE
Pointer TypeINDICATING
Scale Range+0.0 TO 600.0 POUNDS PRESSURE PER SQUARE INCH LBS
Scale TypeSINGLE
AdjustabilityADJUSTABLE
Pointer ColorBLACK
Scale NamePRESSURE
MaterialCOPPER ALLOY 511 ACTUATING ELEMENT
Scale Accuracy1/2 OF 1 PCT ENTIRE RANGE
Surface TreatmentENAMEL CASE
Mounting Hole Diameter0.218 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5315-00-010-6750 INTERCHANGEABLE
Key,woodruff
6685-00-050-134935-410R-1/4L-0-400 INTERCHANGEABLE
Gage,pressure,dial Indicating
Bristol Babcock Inc Helicoid Instruments Div
6685-00-050-1352E1C1F3A10024UAA INTERCHANGEABLE
Gage,pressure,dial Indicating
Bristol Babcock Inc Helicoid Instruments Div
6685-00-058-1505HD35 INTERCHANGEABLE
Gage,pressure,dial Indicating
Bristol Babcock Inc Helicoid Instruments Div
6685-00-058-1507HD39 INTERCHANGEABLE
Gage,pressure,dial Indicating
Bristol Babcock Inc Helicoid Instruments Div
6685-00-067-781735-1009-AW-02B-160# INTERCHANGEABLE
Gage,pressure,dial Indicating
Ashcroft Inc Dba Heise
6685-00-068-975845-1279A04B100 INTERCHANGEABLE
Gage,pressure,dial Indicating
Ashcroft Inc Dba Heise
6685-00-087-9291BA14-PPG2-LWXX INTERCHANGEABLE
Gage,pressure,dial Indicating
Weksler Glass Thermometer Corp
6685-00-168-0386155007-1980 INTERCHANGEABLE
Gage,pressure,dial Indicating
Ametek, Inc. Div Aerospace & Defense
6685-00-194-168345-1279AS-02L-15 INTERCHANGEABLE
Gage,pressure,dial Indicating
Ashcroft Inc Dba Heise
Cross-Reference Index
Part NumberManufacturer
AA442PM4RW PRIMARY Ashcroft Inc Dba Heise (USA)
1YBF233-7EPA Desco Corp Marsh Bellofram Div (USA)
AA142PM4RW Ashcroft Inc Dba Heise (USA)
1279A Ashcroft Inc Dba Heise (USA)
410R Bristol Babcock Inc Helicoid Instruments Div (USA)
45-1279AS02B600 Ashcroft Inc Dba Heise (USA)
Related Parts
5315-00-010-6750INTERCHANGEABLE
KEY,WOODRUFF
6685-00-050-1349INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
35-410R-1/4L-0-400
6685-00-050-1352INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
E1C1F3A10024UAA
6685-00-058-1505INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
HD35
6685-00-058-1507INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
HD39
6685-00-067-7817INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
35-1009-AW-02B-160#
6685-00-068-9758INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
45-1279A04B100
6685-00-087-9291INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
BA14-PPG2-LWXX
6685-00-168-0386INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
155007-1980
6685-00-194-1683INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
45-1279AS-02L-15
6685-00-194-1699INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
F4C1B3A000000
5120-00-203-6437INTERCHANGEABLE
CLAMP,C
410-R

Frequently Asked Questions

What is NSN 6685-00-065-1485?

NSN 6685-00-065-1485 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 6685-00-065-1485?

NSN 6685-00-065-1485 has 6 cross-referenced part numbers: AA442PM4RW (Ashcroft Inc Dba Heise), 1YBF233-7EPA (Desco Corp Marsh Bellofram Div), AA142PM4RW (Ashcroft Inc Dba Heise), 1279A (Ashcroft Inc Dba Heise), 410R (Bristol Babcock Inc Helicoid Instruments Div) and 1 more.

What NSN replaces 6685-00-065-1485?

There are 12 known substitutes for 6685-00-065-1485: 5315-00-010-6750, 6685-00-050-1349, 6685-00-050-1352 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AA442PM4RW?

Key specifications for AA442PM4RW: Bolt Circle Diameter: 5.375 INCHES NOMINAL IN; Mounting Method: SURFACE WALL; Connector Type Vent: NOT PROVIDED; Scale Inscription/background Color: BLACK FIGURES ON WHITE BACKGROUND. 27 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6685-00-065-1485 still in active supply?

NSN 6685-00-065-1485 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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