The Gage,liquid Oxygen Content,dial, cataloged under National Stock Number 6685-01-336-4077, 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 Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. Government technical data includes 11 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-01-336-4077 |
| Primary Part Number | 1779AS174-1 |
| Item Name | Gage,liquid Oxygen Content,dial |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| Status | ACTIVE |
| Scale Name | LIQUID OXYGEN |
| Overall Diameter | 2.900 INCHES NOMINAL IN |
| Mounting Method | PANEL |
| Scale Range | +0.0 TO 160.0 PRESSURE |
| Scale Name for Which Pointer Is Designed | LIQUID OXYGEN |
| Pointer Type | INDICATING |
| Scale Type | DIAL |
| Dial Size | 2-1/2 |
| Graduation Unit | 20.0 POUNDS PER SQUARE INCH LBS |
| Material | GLASS PROTECTIVE CRYSTAL |
| Material | STEEL CORROSION RESISTING CASE |
| 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 |
|---|---|
| 1779AS174-1 PRIMARY | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| 25-1009AW02B-160PSI PRIMARY | Ashcroft Inc Dba Heise (USA) |
| Reference | Meaning |
|---|---|
| 3305504-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 6685-01-336-4077 is a Gage,liquid Oxygen Content,dial, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-01-336-4077 has 2 manufacturer part numbers on file: 1779AS174-1 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier), 25-1009AW02B-160PSI (Ashcroft Inc Dba Heise).
Key specifications for 1779AS174-1: Scale Name: LIQUID OXYGEN; Overall Diameter: 2.900 INCHES NOMINAL IN; Mounting Method: PANEL; Scale Range: +0.0 TO 160.0 PRESSURE. 11 specifications are 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.