# NSN 6685-01-156-4640: Gage, Compound Pressure-Vacuum, Di

NSN 6685-01-156-4640 (also written 6685011564640; NIIN 01-156-4640) is a gage, compound pressure-vacuum, di in Federal Supply Class 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. 4 manufacturer part numbers from 3 suppliers are on record. It was last purchased in Aug 2026.

## Identification

- NSN: 6685-01-156-4640 (6685011564640)
- NIIN: 01-156-4640 (011564640)
- Item name: GAGE,COMPOUND PRESSURE-VACUUM,DI
- Federal Supply Class: [FSC 6685 Pressure, Temperature, and Humidity Measuring and Controlling Instruments](https://nsnexplorer.com/fsc/6685/)
- Federal Supply Group: [FSG 66](https://nsnexplorer.com/group/66/)
- Acquisition method suffix code: AMSC R: the government owns neither the data nor the rights, and obtaining them is judged uneconomical. (observed 2026-10-10)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| ABFY | OVERALL DEPTH | INCHES NOMINAL 2.406 |
| ABKG | BOLT CIRCLE DIAMETER | INCHES NOMINAL 5.875 |
| ABTB | MOUNTING HOLE DIAMETER | INCHES NOMINAL 0.219 |
| ABTJ | MOUNTING HOLE QUANTITY | 3 |
| ADAV | OVERALL DIAMETER | INCHES NOMINAL 4.969 |
| ANBJ | GRADUATION UNIT | INCHES 10.0 AND POUNDS PER SQUARE INCH 5.0 |
| APCM | ACTUATION TYPE | BOURDON TUBE |
| APCS | ADJUSTABILITY | ADJUSTABLE |
| APSK | SCALE RANGE | INCHES 0.0 TO 30.0 AND POUNDS PRESSURE PER SQUARE INCH 0.0 TO 30.0 |
| AQFZ | SCALE NAME | PRESSURE-VACUUM |
| ARCH | DIAL SIZE | 4-1/2 IN. DIA |
| ASMM | CONNECTION QUANTITY | 1 |
| ASSS | POINTER COLOR | BLACK AND RED |
| ASST | POINTER TYPE | INDICATING AND REFERENCE |
| ATEQ | SCALE TYPE | SINGLE |
| AWAG | SCALE SMALLEST INCREMENT | INCHES 1.0 AND POUNDS PER SQUARE INCH (PSI) 1.0 |
| AWLS | CONNECTION TYPE | EXTERNAL |
| AXGY | MOUNTING METHOD | SURFACE |
| BGKS | SCALE ACCURACY | PORM 1 PCT FULL RANGE |
| BGKZ | SCALE INSCRIPTION/BACKGROUND COLOR | BLACK MARKINGS ON WHITE BACKGROUND |
| BGRY | CONNECTION LOCATION | BACK |
| BHMG | CONNECTION SIZE | 0.250 IN. NPT DIA |
| FEAT | SPECIAL FEATURES | DIAPHRAGM; NICKEL COPPER ALLOY; 1/4 IN. NPT GAUGE CONNECTION; SADDLE TYPE PROCESS CONNECTION; 3 IN. DIA PIPE; FILLED WITH LOW TEMPERATURE SILICONE AND CALIBRATED |
| MATT | MATERIAL | ACTUATING ELEMENT NICKEL ALLOY |
| MATT | MATERIAL | PROTECTIVE CRYSTAL PLASTIC |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| EA24-3CB4-RWBX D19-10 | 049X3 | ASHCROFT INC DBA HEISE, WEKSLER | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| SA24-3CA4-RWBX D19-10 | 64467 | WEKSLER GLASS THERMOMETER CORP | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| SA24-3CB4-RWBX D19-10 | 64467 | WEKSLER GLASS THERMOMETER CORP | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| SSX30C2-D04113P20 | 9N735 | MONARCH SUPPLY COMPANY, INC. DBA MONARCH SUPPLY CO INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Price history

Newest first.

| Date | Unit price | Quantity | Supplier | Agency | Source |
| --- | --- | --- | --- | --- | --- |
| 2026-08-26 | $3,200.00 | 2 | MMC METROLOGY LAB, INC. DBA MMC METROLOGY LAB INC | — | [record](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=6685011564640) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-08-26 | [SPE4A626P0AAG](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=6685011564640) | GAGE, COMPOUND PRESSURE-VACUUM, DIAL INDIC | MMC METROLOGY LAB, INC. DBA MMC METROLOGY LAB INC | $6,400.00 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=6685011564640&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=6685011564640
- AMSC record: https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/
- USAspending contract actions (each award above links to its record)
- All data is public U.S. government data; every row above links to its source record where one exists.

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