The Transmitter,temperature,electric, cataloged under National Stock Number 6685-00-281-2840, 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 Division Div Utas. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-00-281-2840 |
| Primary Part Number | A9555 |
| Item Name | Transmitter,temperature,electric |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Rosemount Aerospace Inc. Dba Rosemount Aerospace Division Div Utas |
| Status | ACTIVE |
| Material | STEEL OVERALL |
| 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 |
|---|---|
| A9555 PRIMARY | Rosemount Aerospace Inc. Dba Rosemount Aerospace Division Div Utas (USA) |
| A9555 PRIMARY | Weed Instrument Company, Inc. Dba Ultra Energy Div Ultra Energy (USA) |
| Reference | Meaning |
|---|---|
| 749993-101 | 5/9 Secondary reference Weed Instrument Company, Inc. Dba Ultra Energy Div Ultra Energy |
NSN 6685-00-281-2840 is a Transmitter,temperature,electric, manufactured by Rosemount Aerospace Inc. Dba Rosemount Aerospace Division Div Utas, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-00-281-2840 has 2 manufacturer part numbers on file: A9555 (Rosemount Aerospace Inc. Dba Rosemount Aerospace Division Div Utas), A9555 (Weed Instrument Company, Inc. Dba Ultra Energy Div Ultra Energy).
1 possible match (shared part number, not a government interchangeability claim): 5355-01-160-0296. Verify interchangeability with system specifications before substitution.
Key specifications for A9555: Material: STEEL OVERALL. 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.
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.