The Valve,safety Relief, cataloged under National Stock Number 4820-01-278-5427, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Sullair Corp. Government technical data includes 23 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-278-5427 |
| Primary Part Number | 242318 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Sullair Corp |
| Status | ACTIVE |
| Nominal Thickness | 0.437 INCHES ALL ENDS IN |
| Disk Loading Method | SPRING |
| Nominal Outside Diameter | 5.000 INCHES ALL ENDS IN |
| First Connection Face to Centerline Distance | 2.125 INCHES IN |
| Bolt Hole Nominal Diameter | 0.625 INCHES ALL ENDS IN |
| Flow Control Device | DISK |
| Adjustable Pressure Range | +40.0 TO 50.0 POUNDS PER SQUARE INCH LBS |
| Bolt Hole Quantity | 4 ALL ENDS |
| Connection Type | FLANGE ALL ENDS |
| Valve Size | 1.500 INCHES IN |
| Material | STEEL CORROSION RESISTING SEAT |
| Media for Which Designed | WATER-OIL-GAS SINGLE RESPONSE |
| Flange Shape | ROUND WITH HOLES ALL ENDS |
| Operating Pressure | 350.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Valve Operation Method | AUTOMATIC |
| Material | COPPER ALLOY BODY |
| Style Designator | ANGLE FLANGED ENDS |
| Maximum Operating Temp | 300.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Flange Face Design | PLAIN ALL ENDS |
| Material | STEEL CORROSION RESISTING STEM |
| Material | STEEL CORROSION RESISTING FLOW CONTROL DEVICE |
| Second Connection Face to Centerline Distance | 2.750 INCHES IN |
| Bolt Circle Nominal Diameter | 3.875 INCHES ALL ENDS IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 20-M | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| 20-M1.5F1.5F | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| 242318 PRIMARY | Sullair Corp (USA) |
| 20M-1,1-1/2IN-40PSI PRIMARY | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
NSN 4820-01-278-5427 is a Valve,safety Relief, manufactured by Sullair Corp, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-278-5427 has 4 cross-referenced part numbers: 20-M (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 20-M1.5F1.5F (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 242318 (Sullair Corp), 20M-1,1-1/2IN-40PSI (Anderson Greenwood Lp Dba Anderson Greenwood Crosby).
There are 4 known substitutes for 4820-01-278-5427: 5120-00-316-9172, 5961-00-682-9506, 4820-01-270-9695 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for 242318: Nominal Thickness: 0.437 INCHES ALL ENDS IN; Disk Loading Method: SPRING; Nominal Outside Diameter: 5.000 INCHES ALL ENDS IN; First Connection Face to Centerline Distance: 2.125 INCHES IN. 23 total characteristics are documented in the Federal Logistics Information System.