The Pressure Test Device, cataloged under National Stock Number 6685-01-549-2441, 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 Kongsberg Maritime Sweden Ab. The record lists 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Item Name | Pressure Test Device |
| FSC / FSG | 6685 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments (FSG 66) |
| Manufacturers | Kongsberg Maritime Sweden Ab (CAGE A208N); Bird-Johnson Propeller Company, Llc (CAGE 07309) |
| Parameter | Value |
|---|---|
| NSN | 6685-01-549-2441 |
| Primary Part Number | R955018A |
| Item Name | Pressure Test Device |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Kongsberg Maritime Sweden Ab |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| R955018A PRIMARY | Kongsberg Maritime Sweden Ab (SWE) |
| KMW955018X PRIMARY | Bird-Johnson Propeller Company, Llc (USA) |
| Reference | Meaning |
|---|---|
| R955018 | 5/9 Secondary reference Rolls-Royce Ab |
| R955018A | 5/9 Secondary reference Rolls-Royce Ab |
NSN 6685-01-549-2441 is a Pressure Test Device, manufactured by Kongsberg Maritime Sweden Ab, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-01-549-2441 has 2 manufacturer part numbers on file: R955018A (Kongsberg Maritime Sweden Ab), KMW955018X (Bird-Johnson Propeller Company, Llc).
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 6685-01-549-2441 has DEMIL Code B. 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.