The Valve,safety Relief, cataloged under National Stock Number 4820-01-198-8610, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Anderson Greenwood Lp Dba Anderson Greenwood Crosby. Government technical data includes 22 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-198-8610 |
| Primary Part Number | 3K4J0SE25C 160T186PSI |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Anderson Greenwood Lp Dba Anderson Greenwood Crosby |
| Status | ACTIVE |
| Bolt Circle Nominal Diameter | 6.625 INCHES FIRST END IN |
| Adjustable Pressure Range | +160.0 TO 186.0 POUNDS PER SQUARE INCH LBS |
| Bolt Hole Nominal Diameter | 0.750 INCHES SECOND END IN |
| Nominal Outside Diameter | 8.250 INCHES FIRST END IN |
| Flange Shape | ROUND WITH HOLES ALL ENDS |
| Valve Size | 3.000 INCHES IN |
| Raised Face Nominal Height | 0.062 INCHES SECOND END IN |
| Flange Face Design | RAISED STRAIGHT ALL ENDS |
| Bolt Hole Nominal Diameter | 0.875 INCHES FIRST END IN |
| Style Designator | ANGLE FLANGED ENDS |
| Bolt Hole Quantity | 8 ALL ENDS |
| Flow Control Device | DISK |
| Valve Operation Method | AUTOMATIC |
| Bolt Circle Nominal Diameter | 7.500 INCHES SECOND END IN |
| Second Connection Face to Centerline Distance | 6.125 INCHES IN |
| Raised Face Nominal Diameter | 1.688 INCHES SECOND END IN |
| Material | STEEL BODY |
| Nominal Thickness | 1.125 INCHES FIRST END IN |
| Nominal Thickness | 0.938 INCHES SECOND END IN |
| First Connection Face to Centerline Distance | 6.375 INCHES IN |
| Nominal Outside Diameter | 9.000 INCHES SECOND END IN |
| Connection Type | FLANGE ALL ENDS |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| SD-121-3/4IN160T186PSI | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| D20K3X4IN160T186PSI | Kunkle Industries Inc Lonergan Valve Div (USA) |
| SD-121 | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| SD121-3X4IN160T186PSI | Kunkle Industries Inc Lonergan Valve Div (USA) |
| 3K4J0SE25C 160T186PSI PRIMARY | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| D20K3X4IN160T186PSI | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| SD121 | Kunkle Industries Inc Lonergan Valve Div (USA) |
NSN 4820-01-198-8610 is a Valve,safety Relief, manufactured by Anderson Greenwood Lp Dba Anderson Greenwood Crosby, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-198-8610 has 7 cross-referenced part numbers: SD-121-3/4IN160T186PSI (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), D20K3X4IN160T186PSI (Kunkle Industries Inc Lonergan Valve Div), SD-121 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), SD121-3X4IN160T186PSI (Kunkle Industries Inc Lonergan Valve Div), 3K4J0SE25C 160T186PSI (Anderson Greenwood Lp Dba Anderson Greenwood Crosby) and 2 more.
There are 3 known substitutes for 4820-01-198-8610: 2520-01-173-0064, 4820-01-198-2974, 4820-01-198-3150. Verify interchangeability with system specifications before substitution.
Key specifications for 3K4J0SE25C 160T186PSI: Bolt Circle Nominal Diameter: 6.625 INCHES FIRST END IN; Adjustable Pressure Range: +160.0 TO 186.0 POUNDS PER SQUARE INCH LBS; Bolt Hole Nominal Diameter: 0.750 INCHES SECOND END IN; Nominal Outside Diameter: 8.250 INCHES FIRST END IN. 22 total characteristics are documented in the Federal Logistics Information System.