The Gage,compound Pressure-Vacuum,di, cataloged under National Stock Number 6685-01-411-6579, is classified within Federal Supply Class 6685 (Pressure, Temperature, and Humidity Measuring and Controlling Instruments) of the Instruments and Laboratory Equipment group. The manufacturer of record is Ashcroft Inc Dba Heise. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-01-411-6579 |
| Primary Part Number | 45-1377RS-02B-30/0/300 |
| Item Name | Gage,compound Pressure-Vacuum,di |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Ashcroft Inc Dba Heise |
| Status | ACTIVE |
| Scale Range | +0.0 TO 30.0 INCHES AND +0.0 TO 300.0 POUNDS PRESSURE PER SQUARE INCH LBS |
| Dial Size | 4 1/2 IN.DIA IN |
| Connection Location | BACK |
| Connection Size | 0.250 IN.DIA IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| AA44-6CG4-RWXX | Ashcroft Inc Dba Heise (USA) |
| 45-1377RS-02B-30/0/300 PRIMARY | Ashcroft Inc Dba Heise (USA) |
| Reference | Meaning |
|---|---|
| 6685PL1806702 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 6685-01-411-6579 is a Gage,compound Pressure-Vacuum,di, manufactured by Ashcroft Inc Dba Heise, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-01-411-6579 has 2 manufacturer part numbers on file: AA44-6CG4-RWXX (Ashcroft Inc Dba Heise), 45-1377RS-02B-30/0/300 (Ashcroft Inc Dba Heise).
Key specifications for 45-1377RS-02B-30/0/300: Scale Range: +0.0 TO 30.0 INCHES AND +0.0 TO 300.0 POUNDS PRESSURE PER SQUARE INCH LBS; Dial Size: 4 1/2 IN.DIA IN; Connection Location: BACK; Connection Size: 0.250 IN.DIA IN. 4 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.