The Valve,safety Relief, cataloged under National Stock Number 4820-01-050-9075, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Emerson Automation Solutions Final Control Us Lp Div Navy Product Team. Government technical data includes 29 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-050-9075 |
| Primary Part Number | 2026301S0015 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team |
| Status | ACTIVE |
| Material Document and Classification | QQ-S-764,COMP 303-CANCELED FED SPEC SINGLE MATERIAL RESPONSE STEM |
| Raised Face Nominal Diameter | 1.375 INCHES ALL ENDS IN |
| Bolt Hole Quantity | 4 ALL ENDS |
| Material Document and Classification | ASTM A216,GRADE WCB ASSN STD SINGLE MATERIAL RESPONSE BODY |
| Valve Size | 0.500 INCHES IN |
| Material Document and Classification | QQ-S-764,COMP 303-CANCELED FED SPEC SINGLE MATERIAL RESPONSE SEAT |
| Adjustable Pressure Range | +15.0 TO 19.0 POUNDS PER SQUARE INCH LBS |
| Material | STEEL COMP 303 FLOW CONTROL DEVICE |
| Material | STEEL COMP 303 SEAT |
| Maximum Operating Temp | 450.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Flange Shape | ROUND WITH HOLES ALL ENDS |
| Valve Operation Method | AUTOMATIC OR MANUAL |
| Connection Type | FLANGE ALL ENDS |
| Flow Control Device | DISK |
| Material Document and Classification | QQ-S-764,COMP 303-CANCELED FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE |
| Material | STEEL BODY |
| Operating Pressure | 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Bolt Circle Nominal Diameter | 2.375 INCHES ALL ENDS IN |
| Bolt Hole Nominal Diameter | 0.625 INCHES ALL ENDS IN |
| Nominal Outside Diameter | 3.500 INCHES ALL ENDS IN |
| Raised Face Nominal Height | 0.625 INCHES ALL ENDS IN |
| Nominal Thickness | 0.440 INCHES ALL ENDS IN |
| Style Designator | ANGLE FLANGED ENDS |
| Flange Face Design | RAISED STRAIGHT ALL ENDS |
| Second Connection Face to Centerline Distance | 3.250 INCHES IN |
| Bonnet Type | INSIDE SPRING |
| Bonnet Attachment Method | BOLTED |
| Material | STEEL COMP 303 STEM |
| Disk Loading Method | SPRING |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 20263 | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| 2026301S0015 PRIMARY | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| 20263B51SS | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| 20263 | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| 20263B51SS | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
NSN 4820-01-050-9075 is a Valve,safety Relief, manufactured by Emerson Automation Solutions Final Control Us Lp Div Navy Product Team, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-050-9075 has 5 cross-referenced part numbers: 20263 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 2026301S0015 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 20263B51SS (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 20263 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 20263B51SS (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team).
There are 8 known substitutes for 4820-01-050-9075: 5977-00-234-9577, 5935-00-259-4636, 5962-01-099-4818 and 5 more. Verify interchangeability with system specifications before substitution.
Key specifications for 2026301S0015: Material Document and Classification: QQ-S-764,COMP 303-CANCELED FED SPEC SINGLE MATERIAL RESPONSE STEM; Raised Face Nominal Diameter: 1.375 INCHES ALL ENDS IN; Bolt Hole Quantity: 4 ALL ENDS; Material Document and Classification: ASTM A216,GRADE WCB ASSN STD SINGLE MATERIAL RESPONSE BODY. 30 total characteristics are documented in the Federal Logistics Information System.