PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AA44-4PY2-LWX9Gage,pressure,dial Indicating

Ashcroft Inc Dba Heise · NSN 6685-00-838-3041 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-838-3041 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-838-3041. Primary manufacturer part number: AA44-4PY2-LWX9.
Features
  • Gage,pressure,dial Indicating — FSC 6685
  • Bolt Circle Diameter: 5.375 INCHES NOMINAL IN
  • Color: BLACK CASE
  • Surface Treatment: PAINT EPOXY CASE
  • Material: STEEL ACTUATING ELEMENT
  • Material: GLASS PROTECTIVE CRYSTAL
  • Material: IRON CASE
  • Overall Diameter: 5.813 INCHES NOMINAL IN
Applications
  • Applications requiring Steel Actuating Element construction
General Description

The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-00-838-3041, 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 27 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 12 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: Active.

Technical Specifications
ParameterValue
NSN6685-00-838-3041
Primary Part NumberAA44-4PY2-LWX9
Item NameGage,pressure,dial Indicating
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerAshcroft Inc Dba Heise
StatusACTIVE
Bolt Circle Diameter5.375 INCHES NOMINAL IN
ColorBLACK CASE
Surface TreatmentPAINT EPOXY CASE
MaterialSTEEL ACTUATING ELEMENT
MaterialGLASS PROTECTIVE CRYSTAL
MaterialIRON CASE
Overall Diameter5.813 INCHES NOMINAL IN
Scale NamePRESSURE AND TON
Unable to DecodeUNABLE TO DECODE
Bezel TypeSNAP-ON
Connection TypeEXTERNAL
Dial Size4-1/2 IN. DIA IN
Actuation TypeSINGLE BOURDON TUBE
Scale Name for Which Pointer Is DesignedPRESSURE AND TON
Scale TypeMULTIPLE
Scale Accuracy1 PCT ENTIRE RANGE
Pointer ColorBLACK
Connector Type VentNOT PROVIDED
Connection Size0.500 IN. NPT DIA IN
Mounting MethodFLUSH
Scale Range+0.0 TO 10000.0 POUNDS PRESSURE PER SQUARE INCH AND +0.0 TO 60.0 TONS LBS
Connection Quantity1
AdjustabilityNONADJUSTABLE
Mounting Hole Diameter0.218 INCHES NOMINAL IN
Connection LocationBOTTOM
Pointer TypeINDICATING
Graduation Unit1000.0 POUNDS PER SQUARE INCH AND 15 TONS LBS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5950-00-031-0200202535-1 INTERCHANGEABLE
Coil,radio Frequency
Viking Technologies, Ltd.
4330-00-172-3554 INTERCHANGEABLE
Filter Element,fluid
6680-00-526-8866S6-L INTERCHANGEABLE
Tachometer,mechanical,fixed Moun
Schulze Mfg., Inc.
5945-00-890-243224021 INTERCHANGEABLE
Relay,electromagnetic
Ford Motor Co of Canada Ltd
5330-00-908-518471167904 INTERCHANGEABLE
Packing Set
Hydro-Aire Aerospace Corp
5360-01-112-01425481 INTERCHANGEABLE
Spring
Hoyt Corporation
7510-01-129-11217100029526 INTERCHANGEABLE
Tape,pressure Sensitive Adhesive
3m Company
5998-01-195-31995481 INTERCHANGEABLE
Circuit Card Assembly
Data Device Corp Dba Beta Transformer Technology
6145-01-338-56595481C INTERCHANGEABLE
Cable,special Purpose,electrical
Belden, Inc.
7510-01-491-91355481 INTERCHANGEABLE
Tape,pressure Sensitive Adhesive
3m Company
Cross-Reference Index
Part NumberManufacturer
H15690-001 Bellofram Corporation (USA)
45-1056TR04L10000 Ashcroft Inc Dba Heise (USA)
AA44-4PY2-LWX9 PRIMARY Ashcroft Inc Dba Heise (USA)
8261-25 Age Logistics Corporation (USA)
1-RSF-50360-ALA-001 Bellofram Corporation (USA)
51 Liftec Inc Div Liftec, Inc. (USA)
916-270-2 Age Logistics Corporation (USA)
BA3 Weksler Glass Thermometer Corp (USA)
1056 Ashcroft Inc Dba Heise (USA)
1-RSF-50360-ALA-001 Desco Corp Marsh Bellofram Div (USA)
5481 Ametek, Inc. Div Aerospace & Defense (USA)
8261-25 PRIMARY Columbus Jack Corporation Div Columbus Jack (USA)
Related Parts
5950-00-031-0200INTERCHANGEABLE
COIL,RADIO FREQUENCY
202535-1
4330-00-172-3554INTERCHANGEABLE
FILTER ELEMENT,FLUID
6680-00-526-8866INTERCHANGEABLE
TACHOMETER,MECHANICAL,FIXED MOUN
S6-L
5945-00-890-2432INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
24021
5330-00-908-5184INTERCHANGEABLE
PACKING SET
71167904
5360-01-112-0142INTERCHANGEABLE
SPRING
5481
7510-01-129-1121INTERCHANGEABLE
TAPE,PRESSURE SENSITIVE ADHESIVE
7100029526
5998-01-195-3199INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
5481
6145-01-338-5659INTERCHANGEABLE
CABLE,SPECIAL PURPOSE,ELECTRICAL
5481C
7510-01-491-9135INTERCHANGEABLE
TAPE,PRESSURE SENSITIVE ADHESIVE
5481
8030-01-569-2596INTERCHANGEABLE
SEALING COMPOUND
1730-01-575-2709INTERCHANGEABLE
COLLAR,BRACE,AIRCRAFT
548-1

Frequently Asked Questions

What is NSN 6685-00-838-3041?

NSN 6685-00-838-3041 is a Gage,pressure,dial Indicating, manufactured by Ashcroft Inc Dba Heise, classified under FSC 6685 (No Item Name Available). Status: active.

What are the part numbers for NSN 6685-00-838-3041?

NSN 6685-00-838-3041 has 12 cross-referenced part numbers: H15690-001 (Bellofram Corporation), 45-1056TR04L10000 (Ashcroft Inc Dba Heise), AA44-4PY2-LWX9 (Ashcroft Inc Dba Heise), 8261-25 (Age Logistics Corporation), 1-RSF-50360-ALA-001 (Bellofram Corporation) and 7 more.

What NSN replaces 6685-00-838-3041?

There are 12 known substitutes for 6685-00-838-3041: 5950-00-031-0200, 4330-00-172-3554, 6680-00-526-8866 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AA44-4PY2-LWX9?

Key specifications for AA44-4PY2-LWX9: Bolt Circle Diameter: 5.375 INCHES NOMINAL IN; Overall Depth: 2.031 INCHES NOMINAL IN; Color: BLACK CASE; Surface Treatment: PAINT EPOXY CASE. 30 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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