The Sensor,pressure, cataloged under National Stock Number 6685-01-209-8989, 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 Rosemount Aerospace Inc Dba Rosemount Aerospace Inc. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-01-209-8989 |
| Primary Part Number | 1221S1 |
| Item Name | Sensor,pressure |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Rosemount Aerospace Inc Dba Rosemount Aerospace Inc |
| Status | ACTIVE |
| General Characteristics Item Description | O/A DIM: 7.100 IN. L,3.750 IN. W,2.400 IN. D; MATL: BASEPLATE AND HOUSING-ALUMINUM ALLOY,PRESSURE FITTINGS-STAINLESS STEEL; WT 32.0 OZ; INPUT POWER: 28.0VDC AT 80.0MA NOM VDC |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 1221S1 PRIMARY | Rosemount Aerospace Inc Dba Rosemount Aerospace Inc (USA) |
| Reference | Meaning |
|---|---|
| 1221S1 | 5/9 Secondary reference Rosemount Inc Dba Fisher Rosemount Service and Support |
| HP-P0023 | 7/2 Vendor item drawing reference Raytheon E-Systems, Inc |
NSN 6685-01-209-8989 is a Sensor,pressure, manufactured by Rosemount Aerospace Inc Dba Rosemount Aerospace Inc, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-01-209-8989 has 1 manufacturer part number on file: 1221S1 (Rosemount Aerospace Inc Dba Rosemount Aerospace Inc).
Key specifications for 1221S1: General Characteristics Item Description: O/A DIM: 7.100 IN. L,3.750 IN. W,2.400 IN. D; MATL: BASEPLATE AND HOUSING-ALUMINUM ALLOY,PRESSURE FITTINGS-STAINLESS STEEL; WT 32.0 OZ; INPUT POWER: 28.0VDC AT 80.0MA NOM VDC. 1 specification is 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.
NSN 6685-01-209-8989 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.