NSN 6685-01-422-1506 · NIIN 014221506 · Part number RD20A21J
Automatic Switch Company Dba Asco · FSC 6685 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments · FSG 66 — Instruments and Laboratory Equipment · CAGE 04845
Government record, cited
NSN 6685-01-422-1506 — this item is cataloged by the U.S. Government under National Stock Number 6685-01-422-1506. Manufacturer of record part number: RD20A21J.
Also searched as6685-01-422-1506 ·
6685014221506 ·
NIIN 014221506 ·
01-422-1506 ·
FSC 6685 Pressure, Temperature, and Humidity Measuring and Controlling Instruments · CAGE 04845 · RD20A21J
Voltage Rating: 125.0 VOLTS MINIMUM AND 250.0 VOLTS MAXIMUM OUTPUT
1 manufacturer part number on file
Manufacturer of record: Automatic Switch Company Dba Asco
Identification
NSN: 6685-01-422-1506
NIIN: 014221506
FSC: 6685 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments
FSG: 66 — Instruments and Laboratory Equipment
Primary part number: RD20A21J
Manufacturer: Automatic Switch Company Dba Asco
General Description
The Transmitter,pressure, cataloged under National Stock Number 6685-01-422-1506, 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 Automatic Switch Company Dba Asco. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
6685-01-422-1506
Primary Part Number
RD20A21J
Item Name
Transmitter,pressure
FSC / FSG
6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments
Manufacturer
Automatic Switch Company Dba Asco
Status
ACTIVE
Current Type
AC AND DC
Voltage Rating
125.0 VOLTS MINIMUM AND 250.0 VOLTS MAXIMUM OUTPUT
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
Possible hazard — SDS may be required (DLA HMIC P)
Other items in FSC 6685 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
6685-00-001-1475
6685-00-001-1475 · Item name not on file
6685-00-001-1503
CONTROL,TOTALIZER
6685-00-001-1643
6685-00-001-1643 · Item name not on file
6685-00-001-1711
GAGE,PRESSURE,DIAL INDICATING
6685-00-001-2099
6685-00-001-2099 · Item name not on file
6685-00-001-2100
6685-00-001-2100 · Item name not on file
6685-00-001-2101
6685-00-001-2101 · Item name not on file
6685-00-001-2102
6685-00-001-2102 · Item name not on file
Frequently Asked Questions
What is NSN 6685-01-422-1506?
NSN 6685-01-422-1506 is a Transmitter,pressure, manufactured by Automatic Switch Company Dba Asco, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
What part numbers are listed for NSN 6685-01-422-1506?
NSN 6685-01-422-1506 has 1 manufacturer part number on file: RD20A21J (Automatic Switch Company Dba Asco).
What are the specifications of RD20A21J?
Key specifications for RD20A21J: Current Type: AC AND DC; Special Features: ADJUSTABLE OPERATING RANGE 2-18 P.S.I.G; RATED OVERRANGE PRESSURE 60 P.S.I.G; FIXED DEADBAND .4 P.S.I.G; Voltage Rating: 125.0 VOLTS MINIMUM AND 250.0 VOLTS MAXIMUM OUTPUT. 2 specifications are documented in the U.S. Government catalog.
Is NSN 6685-01-422-1506 hazardous material?
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
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.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.