The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-00-068-3446, 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 26 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 14 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: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 6685-00-068-3446 |
| Primary Part Number | AA446-PM-4RWXX |
| Item Name | Gage,pressure,dial Indicating |
| FSC / FSG | 6685 / 66 — No Item Name Available |
| Manufacturer | Ashcroft Inc Dba Heise |
| Status | CANCELLED |
| Dial Size | 4-1/2 IN. DIA IN |
| Scale Range | +0.0 TO 600.0 POUNDS PRESSURE PER SQUARE INCH LBS |
| Overall Diameter | 6.063 INCHES NOMINAL IN |
| Bolt Circle Diameter | 5.375 INCHES NOMINAL IN |
| Connector Type Vent | NOT PROVIDED |
| Scale Inscription/background Color | BLACK FIGURES ON WHITE BACKGROUND |
| Material | ALUMINUM CASE |
| Color | BLACK CASE |
| Actuation Type | SINGLE BOURDON TUBE |
| Adjustability | ADJUSTABLE |
| Scale Smallest Increment | 5.0 POUNDS PER SQUARE INCH (PSI) LBS |
| Scale Name | PRESSURE |
| Pointer Type | INDICATING |
| Material | STEEL ACTUATING ELEMENT |
| Scale Accuracy | 1/2 OF 1 PCT ENTIRE RANGE |
| Connection Quantity | 1 |
| Graduation Unit | 50.0 POUNDS PER SQUARE INCH LBS |
| Scale Type | SINGLE |
| Pointer Color | BLACK |
| Material | GLASS PROTECTIVE CRYSTAL |
| Connection Location | BACK, LOWER |
| Stud Quantity | 3 |
| Connection Size | 0.250 IN. NPT DIA IN |
| Mounting Method | FLUSH PANEL AND STUD(S) AND PANEL FLANGE |
| Surface Treatment | PAINT CRACKLE FINISH CASE |
| Bezel Type | HINGE |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| AA446-PM-4RWXX PRIMARY | Ashcroft Inc Dba Heise (USA) |
| 176F33F | Liftec Inc Div Liftec, Inc. (USA) |
| AA34-6PM4-RWXX | Ashcroft Inc Dba Heise (USA) |
| U51AA14-6PM2RW | Weksler Glass Thermometer Corp (USA) |
| 915RRAH | Ashcroft Inc Dba Heise (USA) |
| 20777 | Hamilton Sundstrand Corporation (USA) |
| 4 1-2 TYPE1FMS02B0-600 | Desco Corp Marsh Bellofram Div (USA) |
| 1913 | Ametek, Inc. Div Aerospace & Defense (USA) |
| 430R | Bristol Babcock Inc Helicoid Instruments Div (USA) |
| 1ZRF23370ASA | Bellofram Corporation (USA) |
| 103FMH | Bellofram Corporation (USA) |
| 45-1377BS02B600 PRIMARY | Ashcroft Inc Dba Heise (USA) |
| 1FMS0-600 | Desco Corp Marsh Bellofram Div (USA) |
| 1YBF23377ATC001 | Desco Corp Marsh Bellofram Div (USA) |
NSN 6685-00-068-3446 is a Gage,pressure,dial Indicating, manufactured by Ashcroft Inc Dba Heise, classified under FSC 6685 (No Item Name Available). Status: cancelled.
NSN 6685-00-068-3446 has 14 cross-referenced part numbers: AA446-PM-4RWXX (Ashcroft Inc Dba Heise), 176F33F (Liftec Inc Div Liftec, Inc.), AA34-6PM4-RWXX (Ashcroft Inc Dba Heise), U51AA14-6PM2RW (Weksler Glass Thermometer Corp), 915RRAH (Ashcroft Inc Dba Heise) and 9 more.
There are 12 known substitutes for 6685-00-068-3446: 6685-00-054-3950, 6685-00-123-2552, 5120-00-230-7900 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for AA446-PM-4RWXX: Dial Size: 4-1/2 IN. DIA IN; Scale Range: +0.0 TO 600.0 POUNDS PRESSURE PER SQUARE INCH LBS; Overall Diameter: 6.063 INCHES NOMINAL IN; Bolt Circle Diameter: 5.375 INCHES NOMINAL IN. 28 total characteristics are documented in the Federal Logistics Information System.
NSN 6685-00-068-3446 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.