The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-01-229-6512, 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 Ametek, Inc. Div Aerospace & Defense. Government technical data includes 23 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 6685-01-229-6512 |
| Primary Part Number | 173074A |
| Item Name | Gage,pressure,dial Indicating |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Ametek, Inc. Div Aerospace & Defense |
| Status | ACTIVE |
| Scale Accuracy | PORM 2 PCT MIDDLE,3 PCT REMAINDER |
| Scale Name | PRESSURE |
| Overall Diameter | 2.280 INCHES NOMINAL IN |
| Actuation Type | BOURDON TUBE |
| Mounting Method | PANEL |
| Scale Inscription/background Color | BLACK MARKINGS ON WHITE BACKGROUND |
| Scale Smallest Increment | 1.0 INCHES IN |
| Connection Type | EXTERNAL |
| Scale Range | +0.0 TO 60.0 INCHES IN |
| Pointer Type | INDICATING |
| Adjustability | ADJUSTABLE |
| Scale Type | SINGLE |
| Connector Type Vent | NOT PROVIDED |
| Dial Size | 2 IN. DIA IN |
| Graduation Unit | 5.0 INCHES IN |
| Connection Location | BACK, CENTER |
| Pointer Color | BLACK |
| Material | STEEL CASE |
| Material | COPPER ALLOY ACTUATING ELEMENT |
| Material | PLASTIC POLYCARBONATE PROTECTIVE CRYSTAL |
| Connection Quantity | 1 |
| Bezel Type | SNAP-ON |
| Connection Size | 0.250 IN. NPT 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 |
|---|---|
| 173074A PRIMARY | Ametek, Inc. Div Aerospace & Defense (USA) |
| P-844U-1/4CBM-0/60PSI 2IN. PRIMARY | Ametek, Inc. Div Aerospace & Defense (USA) |
| Reference | Meaning |
|---|---|
| 11465051 | 7/2 Vendor item drawing reference Us Army Aviation and Missile Command |
NSN 6685-01-229-6512 is a Gage,pressure,dial Indicating, manufactured by Ametek, Inc. Div Aerospace & Defense, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-01-229-6512 has 2 manufacturer part numbers on file: 173074A (Ametek, Inc. Div Aerospace & Defense), P-844U-1/4CBM-0/60PSI 2IN. (Ametek, Inc. Div Aerospace & Defense).
Key specifications for 173074A: Scale Accuracy: PORM 2 PCT MIDDLE,3 PCT REMAINDER; Scale Name: PRESSURE; Overall Diameter: 2.280 INCHES NOMINAL IN; Actuation Type: BOURDON TUBE. 23 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.