The Gage,pressure,dial Indicating, cataloged under National Stock Number 6620-01-339-9404, is classified within Federal Supply Class 6620 (Engine 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 18 specifications, 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6620-01-339-9404 |
| Primary Part Number | 1780AS154-1 |
| Item Name | Gage,pressure,dial Indicating |
| FSC / FSG | 6620 / 66 — Engine Instruments |
| Manufacturer | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| Status | ACTIVE |
| Mounting Hole Quantity | 3 |
| Scale Name | OXYGEN |
| Overall Diameter | 6.011 INCHES NOMINAL IN |
| Mounting Connection Location | UPPER FRONT AND LOWER LEFT HAND SIDE AND LOWER RIGHT HAND SIDE |
| Mounting Method | HOLE |
| Scale Smallest Increment | 0.0 POUNDS PER SQUARE INCH (PSI) LBS |
| Connection Type | EXTERNAL |
| Scale Range | +0.0 TO 15.0 INCHES AND +0.1 TO 25.0 INCHES IN |
| Mounting Hole Diameter | 0.220 INCHES NOMINAL IN |
| Scale Name for Which Pointer Is Designed | POUNDS PRESSURE |
| Pointer Type | INDICATING |
| Scale Type | DIAL |
| Dial Size | 4-1/2 IN. DIA. IN |
| Graduation Unit | 0.1 POUNDS PER SQUARE INCH LBS |
| Connection Location | BACK, LOWER |
| Unable to Decode | UNABLE TO DECODE |
| Material | ALUMINUM CASE |
| Connection Size | 0.250 IN. NPT DIA IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 1780AS154-1 PRIMARY | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
NSN 6620-01-339-9404 is a Gage,pressure,dial Indicating, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 6620, Engine Instruments. Status: active.
NSN 6620-01-339-9404 has 1 manufacturer part number on file: 1780AS154-1 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).
Key specifications for 1780AS154-1: Mounting Hole Quantity: 3; Scale Name: OXYGEN; Overall Diameter: 6.011 INCHES NOMINAL IN; Mounting Connection Location: UPPER FRONT AND LOWER LEFT HAND SIDE AND LOWER RIGHT HAND SIDE. 18 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). 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.