The Valve,safety Relief, cataloged under National Stock Number 4820-01-201-2656, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Dante Valve Company. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-201-2656 |
| Primary Part Number | BCSAA04SDD |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Dante Valve Company |
| Status | ACTIVE |
| Bonnet Type | EXPOSED SPRING |
| Adjustable Pressure Range | +35.0 TO 44.0 POUNDS PER SQUARE INCH LBS |
| Connection Type | UNTHREADED INTERNAL TUBE ALL ENDS |
| Valve Operation Method | AUTOMATIC |
| Style Designator | ANGLE |
| Flow Control Device | DISK |
| Material | COPPER ALLOY BODY |
| Connection Style | STREAMLINED WITH ONE BRAZING RING (TUBE) ALL ENDS |
| Operating Pressure | 4000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Nominal Outside Diameter Tube Accommodated | 0.750 INCHES ALL ENDS IN |
| Bonnet Attachment Method | BOLTED |
| Material | STEEL COMP 316 STEM |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 1251T 3-4IN | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| 9966 | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| BCSAA04SDD PRIMARY | Dante Valve Company (USA) |
| 9969G51M PRIMARY | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| BCSAA04SDD | Danco Valve Company (USA) |
| 9969-1251T 3-4I | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| D52UU-04 3/4 INCH | Danco Valve Company (USA) |
| 9969-1251T 3/4 IN 35PSI | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
NSN 4820-01-201-2656 is a Valve,safety Relief, manufactured by Dante Valve Company, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-201-2656 has 8 cross-referenced part numbers: 1251T 3-4IN (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 9966 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), BCSAA04SDD (Dante Valve Company), 9969G51M (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), BCSAA04SDD (Danco Valve Company) and 3 more.
There are 9 known substitutes for 4820-01-201-2656: 5315-00-010-3728, 5120-00-112-9371, 5935-00-114-8845 and 6 more. Verify interchangeability with system specifications before substitution.
Key specifications for BCSAA04SDD: Bonnet Type: EXPOSED SPRING; Adjustable Pressure Range: +35.0 TO 44.0 POUNDS PER SQUARE INCH LBS; Connection Type: UNTHREADED INTERNAL TUBE ALL ENDS; Valve Operation Method: AUTOMATIC. 13 total characteristics are documented in the Federal Logistics Information System.