The Valve,safety Relief, cataloged under National Stock Number 4820-00-446-3695, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Aqua-Chem, Inc. Dba Aqua-Chem Inc. Government technical data includes 18 specifications, cited from the U.S. Government catalog. The record lists 8 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through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 4820-00-446-3695 |
| Primary Part Number | 3-1394CPC69 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Aqua-Chem, Inc. Dba Aqua-Chem Inc |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Nominal Pipe Size Accommodated | 0.500 INCHES ALL ENDS IN |
| Connection Style | PLAIN,OPTIONAL END(PIPE) ALL ENDS |
| Connection Type | THREADED INTERNAL PIPE ALL ENDS |
| Style Designator | ANGLE |
| Operating Pressure | 300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Adjustable Pressure Range | +126.0 TO 150.0 POUNDS PER SQUARE INCH LBS |
| Features Provided | PRESSURE TIGHT OUTLET SIDE |
| Bonnet Type | INSIDE SPRING |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Nominal Thread Size | 0.500 INCHES ALL ENDS IN |
| Maximum Operating Temp | 406.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Disk Loading Method | SPRING |
| Bonnet Attachment Method | THREADED |
| Media for Which Designed | WATER-OIL-GAS SINGLE RESPONSE |
| Material | COPPER ALLOY OVERALL |
| Thread Series Designator | NPT ALL ENDS |
| Valve Operation Method | AUTOMATIC |
| 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 |
|---|---|
| 3-1394CPC69 PRIMARY | Aqua-Chem, Inc. Dba Aqua-Chem Inc (USA) |
| 3-1856BPC67 PRIMARY | Aqua-Chem, Inc. Dba Aqua-Chem Inc (USA) |
| 3-1394DPC69 PRIMARY | Aqua-Chem, Inc. Dba Aqua-Chem Inc (USA) |
| 3-1856A1PC67 PRIMARY | Aqua-Chem, Inc. Dba Aqua-Chem Inc (USA) |
| E3-2152APC67 PRIMARY | Aqua-Chem, Inc. Dba Aqua-Chem Inc (USA) |
| 3-1856APC67 PRIMARY | Aqua-Chem, Inc. Dba Aqua-Chem Inc (USA) |
| E3-2152BPC67 PRIMARY | Aqua-Chem, Inc. Dba Aqua-Chem Inc (USA) |
| 904185 PRIMARY | Aqua-Chem, Inc. Dba Aqua-Chem Inc (USA) |
| Reference | Meaning |
|---|---|
| 3-1394CPC69 | 5/9 Secondary reference Aqua-Chem Inc Cleaver-Brooks Div |
| 904185 | 5/9 Secondary reference Aqua-Chem Inc Cleaver-Brooks Div |
| 3-1856BPC67 | 5/9 Secondary reference Aqua-Chem Inc Cleaver-Brooks Div |
| E3-2152APC67 | 3/9 Design control — primary reference Aqua-Chem Inc Cleaver-Brooks Div |
| E3-2152BPC67 | 5/9 Secondary reference Aqua-Chem Inc Cleaver-Brooks Div |
| 3-1856APC67 | 5/9 Secondary reference Aqua-Chem Inc Cleaver-Brooks Div |
| 3-1856A1PC67 | 5/9 Secondary reference Aqua-Chem Inc Cleaver-Brooks Div |
| 3-1394DPC69 | 5/9 Secondary reference Aqua-Chem Inc Cleaver-Brooks Div |
NSN 4820-00-446-3695 is a Valve,safety Relief, manufactured by Aqua-Chem, Inc. Dba Aqua-Chem Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-446-3695 has 8 manufacturer part numbers on file: 3-1394CPC69 (Aqua-Chem, Inc. Dba Aqua-Chem Inc), 3-1856BPC67 (Aqua-Chem, Inc. Dba Aqua-Chem Inc), 3-1394DPC69 (Aqua-Chem, Inc. Dba Aqua-Chem Inc), 3-1856A1PC67 (Aqua-Chem, Inc. Dba Aqua-Chem Inc), E3-2152APC67 (Aqua-Chem, Inc. Dba Aqua-Chem Inc) and 3 more.
Key specifications for 3-1394CPC69: Flow Control Device: DISK; Nominal Pipe Size Accommodated: 0.500 INCHES ALL ENDS IN; Connection Style: PLAIN,OPTIONAL END(PIPE) ALL ENDS; Connection Type: THREADED INTERNAL PIPE ALL ENDS. 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.