The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-01-573-8401, 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 Bird-Johnson Propeller Company, Llc. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Gage,pressure,dial Indicating |
| FSC / FSG | 6685 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments (FSG 66) |
| Manufacturers | Kongsberg Maritime Sweden Ab (CAGE A208N); Systemhydraulic Ab Jms (CAGE AJ35N); Bird-Johnson Propeller Company, Llc (CAGE 07309) |
| Parameter | Value |
|---|---|
| NSN | 6685-01-573-8401 |
| Primary Part Number | P-3-4-53 |
| Item Name | Gage,pressure,dial Indicating |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Bird-Johnson Propeller Company, Llc |
| Status | ACTIVE |
| 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 |
|---|---|
| KMW074498 | Kongsberg Maritime Sweden Ab (SWE) |
| 51097 | Systemhydraulic Ab Jms (SWE) |
| P-3-4-53 PRIMARY | Bird-Johnson Propeller Company, Llc (USA) |
| Reference | Meaning |
|---|---|
| F074498 | 5/9 Secondary reference Rolls-Royce Ab |
| 312-63-FB-250 | 3/9 Design control — primary reference Systemhydraulic Ab Jms |
| KMW074498 | 5/9 Secondary reference Rolls-Royce Ab |
| 133750 REV F ITEM 44 | 5/9 Secondary reference Rolls-Royce Ab |
| 312-63-FB-250 | 3/1 Design control — primary reference Systemhydraulic Ab Jms |
| 51097 | 5/9 Secondary reference Systemhydraulic Ab Jms |
| F074498 | 5/1 Secondary reference Kongsberg Maritime Sweden Ab |
| 133750 REV F ITEM 44 | 5/1 Secondary reference Kongsberg Maritime Sweden Ab |
NSN 6685-01-573-8401 is a Gage,pressure,dial Indicating, manufactured by Bird-Johnson Propeller Company, Llc, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-01-573-8401 has 3 manufacturer part numbers on file: KMW074498 (Kongsberg Maritime Sweden Ab), 51097 (Systemhydraulic Ab Jms), P-3-4-53 (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.
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.