The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-00-683-9591, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Bellofram Corporation. Government technical data includes 28 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 11 commercial cross-references from 6 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 | 6685-00-683-9591 |
| Primary Part Number | 4 1-2 103FMH1-4LBM60 |
| Item Name | Gage,pressure,dial Indicating |
| FSC / FSG | 6685 / 66 — No Item Name Available |
| Manufacturer | Bellofram Corporation |
| Status | CANCELLED |
| Bolt Circle Diameter | 5.375 INCHES NOMINAL IN |
| Material | GLASS PROTECTIVE CRYSTAL |
| Color | BLACK CASE |
| Surface Treatment | PAINT EPOXY CASE |
| Overall Diameter | 6.063 INCHES NOMINAL IN |
| Scale Inscription/background Color | BLACK FIGURES ON WHITE BACKGROUND |
| Connector Type Vent | NOT PROVIDED |
| Stud Location | BACK |
| Connection Location | BACK |
| Scale Accuracy | 1/2 OF 1 PCT ENTIRE RANGE |
| Scale Name | PRESSURE |
| Graduation Unit | 5.0 POUNDS PER SQUARE INCH LBS |
| Connection Type | EXTERNAL |
| Dial Size | 4-1/2 IN. DIA IN |
| Bezel Type | HINGE |
| Scale Type | SINGLE |
| Pointer Type | INDICATING |
| Actuation Type | SINGLE BOURDON TUBE |
| Pointer Color | BLACK |
| Stud Quantity | 3 |
| Scale Range | +0.0 TO 60.0 POUNDS PRESSURE PER SQUARE INCH LBS |
| Connection Quantity | 1 |
| Scale Smallest Increment | 1.0 POUNDS PER SQUARE INCH (PSI) LBS |
| Scale Name for Which Pointer Is Designed | PRESSURE |
| Mounting Method | FLUSH PANEL |
| Connection Size | 0.250 IN. NPT DIA IN |
| Adjustability | ADJUSTABLE |
| FSC Application Data | GAGE,PRESSURE,DIAL INDICATING,EXCEPT ENGINE |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 4 1-2 103FMH1-4LBM60 PRIMARY | Bellofram Corporation (USA) |
| 45-1377AS-02B-0/60 PRIMARY | Ashcroft Inc Dba Heise (USA) |
| 1077A4 1-2 0T060 | Ashcroft Inc Dba Heise (USA) |
| 103FMH | Desco Corp Marsh Bellofram Div (USA) |
| 1903 | Ametek, Inc. Div Aerospace & Defense (USA) |
| 12Z6227-100 | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| 4 1-2 103FMH1-4LBM60 | Desco Corp Marsh Bellofram Div (USA) |
| 9492M17P01 | General Electric Company (USA) |
| 1377A | Ashcroft Inc Dba Heise (USA) |
| 45-1377A02B60 | Ashcroft Inc Dba Heise (USA) |
| 1077A | Ashcroft Inc Dba Heise (USA) |
NSN 6685-00-683-9591 is a Gage,pressure,dial Indicating, manufactured by Bellofram Corporation, classified under FSC 6685 (No Item Name Available). Status: cancelled.
NSN 6685-00-683-9591 has 11 cross-referenced part numbers: 4 1-2 103FMH1-4LBM60 (Bellofram Corporation), 45-1377AS-02B-0/60 (Ashcroft Inc Dba Heise), 1077A4 1-2 0T060 (Ashcroft Inc Dba Heise), 103FMH (Desco Corp Marsh Bellofram Div), 1903 (Ametek, Inc. Div Aerospace & Defense) and 6 more.
There are 12 known substitutes for 6685-00-683-9591: 6685-00-066-1059, 6685-00-068-3444, 6685-00-068-3446 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 4 1-2 103FMH1-4LBM60: Overall Depth: 2.563 INCHES NOMINAL IN; Bolt Circle Diameter: 5.375 INCHES NOMINAL IN; Material: GLASS PROTECTIVE CRYSTAL; Color: BLACK CASE. 30 total characteristics are documented in the Federal Logistics Information System.
NSN 6685-00-683-9591 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.