The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-00-837-3522, 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 14 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 6685-00-837-3522 |
| Primary Part Number | AA444PF4LW |
| Item Name | Gage,pressure,dial Indicating |
| FSC / FSG | 6685 / 66 — No Item Name Available |
| Manufacturer | Ashcroft Inc Dba Heise |
| Status | CANCELLED |
| Overall Diameter | 5.875 INCHES NOMINAL IN |
| Material | STEEL CORROSION RESISTING ACTUATING ELEMENT |
| Material | GLASS PROTECTIVE CRYSTAL |
| Surface Treatment | PAINT CRACKLE FINISH CASE |
| Material | ALUMINUM CASE |
| Color | BLACK CASE |
| Bolt Circle Diameter | 5.500 INCHES NOMINAL IN |
| Mounting Hole Quantity | 3 |
| Pointer Color | BLACK |
| Scale Type | SINGLE |
| Scale Range | +0.0 TO 100.0 POUNDS PRESSURE PER SQUARE INCH LBS |
| Scale Accuracy | 1/2 OF 1 PCT ENTIRE RANGE |
| Dial Size | 4-1/2 IN. DIA IN |
| Adjustability | ADJUSTABLE |
| Pointer Type | INDICATING |
| Connection Type | EXTERNAL |
| Scale Inscription/background Color | BLACK FIGURES ON WHITE BACKGROUND |
| Graduation Unit | 10.000 POUNDS PER SQUARE INCH LBS |
| Connection Location | BOTTOM |
| Connection Size | 0.250 IN. NPT IN |
| Connection Quantity | 1 |
| Mounting Method | SURFACE WALL |
| Bezel Type | THREAD |
| Actuation Type | SINGLE BOURDON TUBE |
| Scale Smallest Increment | 1.000 POUNDS PER SQUARE INCH (PSI) LBS |
| Scale Name | PRESSURE |
| Connector Type Vent | NOT PROVIDED |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 45-1379SS02L100 | Ashcroft Inc Dba Heise (USA) |
| 1WQF03577AKA460 | Desco Corp Marsh Bellofram Div (USA) |
| 440R | Bristol Babcock Inc Helicoid Instruments Div (USA) |
| 176C33C | Liftec Inc Div Liftec, Inc. (USA) |
| 1079R | Ashcroft Inc Dba Heise (USA) |
| 241R | Liftec Inc Div Liftec, Inc. (USA) |
| 1010 | Ashcroft Inc Dba Heise (USA) |
| 1901T | Ametek, Inc. Div Aerospace & Defense (USA) |
| 1931T | Ametek, Inc. Div Aerospace & Defense (USA) |
| 401-60133-80 | L3harris Technologies Integrated Systems L.p. Dba L3harris Technologies (USA) |
| 1379SS | Ashcroft Inc Dba Heise (USA) |
| AA444PF4LW PRIMARY | Ashcroft Inc Dba Heise (USA) |
| AA444PF4LW | Weksler Glass Thermometer Corp (USA) |
| 45-1010-02L100 | Ashcroft Inc Dba Heise (USA) |
NSN 6685-00-837-3522 is a Gage,pressure,dial Indicating, manufactured by Ashcroft Inc Dba Heise, classified under FSC 6685 (No Item Name Available). Status: cancelled.
NSN 6685-00-837-3522 has 14 cross-referenced part numbers: 45-1379SS02L100 (Ashcroft Inc Dba Heise), 1WQF03577AKA460 (Desco Corp Marsh Bellofram Div), 440R (Bristol Babcock Inc Helicoid Instruments Div), 176C33C (Liftec Inc Div Liftec, Inc.), 1079R (Ashcroft Inc Dba Heise) and 9 more.
There are 12 known substitutes for 6685-00-837-3522: 6685-00-019-0551, 6685-00-019-0552, 6625-00-053-8154 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for AA444PF4LW: Overall Diameter: 5.875 INCHES NOMINAL IN; Overall Depth: 1.812 INCHES NOMINAL IN; Material: STEEL CORROSION RESISTING ACTUATING ELEMENT; Material: GLASS PROTECTIVE CRYSTAL. 30 total characteristics are documented in the Federal Logistics Information System.
NSN 6685-00-837-3522 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.