The Valve,safety Relief, cataloged under National Stock Number 4820-01-128-1611, 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 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4820-01-128-1611 |
| Primary Part Number | 20244-L-91S |
| 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 | CANCELLED |
| Disk Loading Method | SPRING |
| Second Connection Face to Centerline Distance | 6.375 INCHES IN |
| Material | STEEL OVERALL |
| Operating Pressure | 210.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| First Connection Face to Centerline Distance | 6.000 INCHES IN |
| Valve Size | 3.000 INCHES IN |
| Adjustable Pressure Range | +89.0 TO 106.0 POUNDS PER SQUARE INCH LBS |
| Connection Type | FLANGE ALL ENDS |
| Flow Control Device | DISK |
| Bonnet Type | INSIDE SPRING |
| Bonnet Attachment Method | BOLTED |
| Valve Operation Method | AUTOMATIC |
| Maximum Operating Temp | 150.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Style Designator | ANGLE FLANGED ENDS |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 9657-6-81SS | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| 20244-L-91S | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| 20244 | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| 20244-L-91S PRIMARY | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| 20244 PRIMARY | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| 20244L91SS PRIMARY | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| 20244L91SS | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
NSN 4820-01-128-1611 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: cancelled.
NSN 4820-01-128-1611 has 7 cross-referenced part numbers: 9657-6-81SS (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 20244-L-91S (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 20244 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 20244-L-91S (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 20244 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team) and 2 more.
There are 10 known substitutes for 4820-01-128-1611: 5962-01-097-2442, 4820-01-123-3970, 4820-01-130-8474 and 7 more. Verify interchangeability with system specifications before substitution.
Key specifications for 20244-L-91S: Disk Loading Method: SPRING; Second Connection Face to Centerline Distance: 6.375 INCHES IN; Material: STEEL OVERALL; Operating Pressure: 210.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS. 15 total characteristics are documented in the Federal Logistics Information System.
NSN 4820-01-128-1611 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.