The Transmitter,pressure, cataloged under National Stock Number 6685-01-668-4902, 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 Hydac Corp. Government technical data includes 10 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-01-668-4902 |
| Primary Part Number | HDA4776-A-5000-000 (PSI) F1 |
| Item Name | Transmitter,pressure |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Hydac Corp |
| Status | ACTIVE |
| Current Type | DC |
| Mechanical Connection Quantity | 1 |
| Electrical Connection Quantity | 2 |
| Overall Diameter | 0.35 MILLIMETERS NOMINAL MM |
| Electrical Connection Identifying Number | MALE M12X1 4 POLE |
| Mounting Method | CONNECTION |
| Mechanical Connection Type | EXTERNAL THREAD |
| Mechanical Connection Size | 9/16 UNF 2A MALE (SAE 6 MALE) A |
| Voltage Rating | 8.0 VOLTS MINIMUM AND 30.0 VOLTS MAXIMUM INPUT |
| Measurement Range | +0.0 TO 5000.0 POUNDS PER SQUARE INCH LBS |
| 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 |
|---|---|
| 32711 | Rolls-Royce Canada Limited Div Rolls-Royce Canada Limited (CAN) |
| HDA4776-A-5000-000 (PSI) F1 PRIMARY | Hydac Corp (USA) |
NSN 6685-01-668-4902 is a Transmitter,pressure, manufactured by Hydac Corp, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-01-668-4902 has 2 manufacturer part numbers on file: 32711 (Rolls-Royce Canada Limited Div Rolls-Royce Canada Limited), HDA4776-A-5000-000 (PSI) F1 (Hydac Corp).
Key specifications for HDA4776-A-5000-000 (PSI) F1: Current Type: DC; Mechanical Connection Quantity: 1; Electrical Connection Quantity: 2; Overall Diameter: 0.35 MILLIMETERS NOMINAL MM. 10 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.