The Valve,safety Relief, cataloged under National Stock Number 4820-00-446-2695, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Anderson Greenwood Lp Dba Anderson Greenwood Crosby. Government technical data includes 30 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-446-2695 |
| Primary Part Number | 23-MS,3/4IN,130PSI |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Anderson Greenwood Lp Dba Anderson Greenwood Crosby |
| Status | ACTIVE |
| Flow Control Device | DISKDISK |
| Nominal Pipe Size Accommodated | 0.750 INCHES SECOND END0.750 INCHES SECOND END IN |
| Nominal Pipe Size Accommodated | 0.750 INCHES FIRST END0.750 INCHES FIRST END IN |
| Connection Style | PLAIN,OPTIONAL END(PIPE) FIRST ENDPLAIN,OPTIONAL END(PIPE) FIRST END |
| Connection Style | PLAIN (PIPE) SECOND ENDPLAIN (PIPE) SECOND END |
| Connection Type | THREADED EXTERNAL PIPE SECOND ENDTHREADED EXTERNAL PIPE SECOND END |
| Connection Type | THREADED INTERNAL PIPE FIRST ENDTHREADED INTERNAL PIPE FIRST END |
| Style Designator | ANGLE |
| Material Document and Classification | QQ-C-390 FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE |
| Material Document and Classification | QQ-C-390 FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICEQQ-C-390 FED SPEC SINGLE MATERIAL RESPONSE SEAT |
| Material Document and Classification | QQ-C-390 FED SPEC SINGLE MATERIAL RESPONSE SEATQQ-C-390 FED SPEC SINGLE MATERIAL RESPONSE BODY |
| Operating Pressure | 300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Adjustable Pressure Range | +121.0 TO 250.0 POUNDS PER SQUARE INCH+121.0 TO 250.0 POUNDS PER SQUARE INCH LBS |
| Features Provided | PRESSURE TIGHT OUTLET SIDEPRESSURE TIGHT OUTLET SIDE |
| Bonnet Type | INSIDE SCREWINSIDE SCREW |
| Thread Direction | RIGHT-HAND SECOND ENDRIGHT-HAND SECOND END |
| Thread Direction | RIGHT-HAND FIRST ENDRIGHT-HAND FIRST END |
| Nominal Thread Size | 0.750 INCHES SECOND END0.750 INCHES SECOND END IN |
| Nominal Thread Size | 0.750 INCHES FIRST END0.750 INCHES FIRST END IN |
| Maximum Operating Temp | 400.0 FAHRENHEIT SINGLE RESPONSE400.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Disk Loading Method | SPRINGSPRING |
| Bonnet Attachment Method | INTEGRALINTEGRAL |
| Media for Which Designed | WATER, FRESH THIRD RESPONSE |
| Media for Which Designed | STEAM SECOND RESPONSEOIL FIRST RESPONSE |
| Media for Which Designed | WATER, FRESH THIRD RESPONSESTEAM SECOND RESPONSE |
| Thread Quantity Per Inch | 14 SECOND END14 SECOND END |
| Material | STEEL CORROSION RESISTING STEM |
| Material | COPPER ALLOY FLOW CONTROL DEVICECOPPER ALLOY SEAT |
| Material | COPPER ALLOY SEATCOPPER ALLOY BODY |
| Material | STEEL CORROSION RESISTING STEMCOPPER ALLOY FLOW CONTROL DEVICE |
| 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 |
|---|---|
| YSR17S5100-703108PC19 | Naval Sea Systems Command (USA) |
| BDE1S5101-5ALT2PC19 | Naval Sea Systems Command (USA) |
| 23-MS,3/4IN,130PSI PRIMARY | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| Reference | Meaning |
|---|---|
| 2601-3-4-130PSI | 5/9 Secondary reference Crane Co Div Valve Div |
| 14039CR2601-130 | 5/9 Secondary reference Ames Iron Works |
| C371APC19 | 5/9 Secondary reference Ames Iron Works |
| BDE1S5101-5ALT2PC19 | 5/9 Secondary reference U.S. Government activity |
| A1PC19 | 5/9 Secondary reference Ames Iron Works |
| YSR17S5100-703108PC19 | 5/9 Secondary reference U.S. Government activity |
NSN 4820-00-446-2695 is a Valve,safety Relief, manufactured by Anderson Greenwood Lp Dba Anderson Greenwood Crosby, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-446-2695 has 3 manufacturer part numbers on file: YSR17S5100-703108PC19 (Naval Sea Systems Command), BDE1S5101-5ALT2PC19 (Naval Sea Systems Command), 23-MS,3/4IN,130PSI (Anderson Greenwood Lp Dba Anderson Greenwood Crosby).
Key specifications for 23-MS,3/4IN,130PSI: Flow Control Device: DISKDISK; Nominal Pipe Size Accommodated: 0.750 INCHES SECOND END0.750 INCHES SECOND END IN; Nominal Pipe Size Accommodated: 0.750 INCHES FIRST END0.750 INCHES FIRST END IN; Connection Style: PLAIN,OPTIONAL END(PIPE) FIRST ENDPLAIN,OPTIONAL END(PIPE) FIRST END. 30 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.