The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-01-512-9434, 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 Hunter Spring. Government technical data includes 18 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-01-512-9434 |
| Primary Part Number | 146588 |
| Item Name | Gage,pressure,dial Indicating |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Ametek, Inc. Div Hunter Spring |
| Status | ACTIVE |
| Scale Name | PRESSURE |
| Actuation Type | BOURDON TUBE |
| Mounting Method | SEMIFLUSH |
| Scale Smallest Increment | 50.0 POUNDS PER SQUARE INCH (PSI) LBS |
| Connection Type | EXTERNAL |
| Scale Range | +0.0 TO 1500.0 POUNDS PER SQUARE INCH LBS |
| Pointer Type | INDICATING |
| Adjustability | NONADJUSTABLE |
| Scale Type | DIAL |
| Connector Type Vent | NOT PROVIDED |
| Dial Size | 1 1/2IN IN |
| Graduation Unit | 300.0 POUNDS PER SQUARE INCH LBS |
| Connection Location | BACK, CENTER |
| Pointer Color | ANY ACCEPTABLE |
| Material | BRASS CASE |
| Material | STEEL CORROSION RESISTING ACTUATING ELEMENT |
| Connection Quantity | 1 |
| Connection Size | 0.125IN NPT MALE CONNECTOR 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 |
|---|---|
| 7-024-0158 | Chemetron Fire Systems (USA) |
| D1-061-0945 ITEM 6 | Chemetron Fire Systems (USA) |
| 146588 PRIMARY | Ametek, Inc. Div Hunter Spring (USA) |
| Reference | Meaning |
|---|---|
| B7-024-0158 REV B | D/9 Drawing number reference only Chemetron Fire Systems |
| AD-45342 | 5/9 Secondary reference Ametek, Inc. Div Hunter Spring |
NSN 6685-01-512-9434 is a Gage,pressure,dial Indicating, manufactured by Ametek, Inc. Div Hunter Spring, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-01-512-9434 has 3 manufacturer part numbers on file: 7-024-0158 (Chemetron Fire Systems), D1-061-0945 ITEM 6 (Chemetron Fire Systems), 146588 (Ametek, Inc. Div Hunter Spring).
Key specifications for 146588: Overall Height: 1.690 INCHES NOMINAL IN; Scale Name: PRESSURE; Actuation Type: BOURDON TUBE; Mounting Method: SEMIFLUSH. 18 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.