The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-01-504-7777, 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 Chase Supply, Inc. Dba Chase Defense Partners. Government technical data includes 17 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-01-504-7777 |
| Primary Part Number | 911RTA20A21-7000 |
| Item Name | Gage,pressure,dial Indicating |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Chase Supply, Inc. Dba Chase Defense Partners |
| Status | ACTIVE |
| Scale Name | POUNDS PRESSURE |
| Actuation Type | BOURDON TUBE |
| Scale Smallest Increment | 2.0 POUNDS PER SQUARE INCH (PSI) LBS |
| Criticality Code Justification | AGAV |
| Connection Type | EXTERNAL |
| Scale Range | +0.0 TO 500.0 POUNDS PER SQUARE INCH LBS |
| Pointer Type | INDICATING |
| Adjustability | ADJUSTABLE |
| Scale Type | DIAL |
| Connector Type Vent | NOT PROVIDED |
| Dial Size | 4.50IN IN |
| Graduation Unit | 100.0 POUNDS PER SQUARE INCH LBS |
| Connection Location | BOTTOM |
| Pointer Color | ANY ACCEPTABLE |
| Material | STEEL CORROSION RESISTING ACTUATING ELEMENT |
| Connection Quantity | 1 |
| Connection Size | 0.25IN NPT MALE IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 911RTA20A21-7000 PRIMARY | Chase Supply, Inc. Dba Chase Defense Partners (USA) |
| Reference | Meaning |
|---|---|
| 25554-27B31MLG | 3/9 Design control — primary reference 3d Instruments, Lp Dba Sierra Precision |
NSN 6685-01-504-7777 is a Gage,pressure,dial Indicating, manufactured by Chase Supply, Inc. Dba Chase Defense Partners, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-01-504-7777 has 1 manufacturer part number on file: 911RTA20A21-7000 (Chase Supply, Inc. Dba Chase Defense Partners).
Key specifications for 911RTA20A21-7000: Scale Name: POUNDS PRESSURE; Actuation Type: BOURDON TUBE; Scale Smallest Increment: 2.0 POUNDS PER SQUARE INCH (PSI) LBS; Criticality Code Justification: AGAV. 17 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.