The Valve,safety Relief, cataloged under National Stock Number 4820-01-333-0089, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 25 specifications, cited from the U.S. Government catalog. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-333-0089 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Flange Shape | ROUND WITH HOLES ALL ENDS |
| Flange Face Design | RAISED STRAIGHT ALL ENDS |
| Bolt Circle Nominal Diameter | 8.000 INCHES FIRST END IN |
| Bolt Circle Nominal Diameter | 10.625 INCHES SECOND END IN |
| Connection Type | FLANGE ALL ENDS |
| Style Designator | ANGLE FLANGED ENDS |
| Bolt Hole Nominal Diameter | 1.250 INCHES FIRST END IN |
| Bolt Hole Nominal Diameter | 0.875 INCHES SECOND END IN |
| Valve Size | 3.000 INCHES IN |
| Second Connection Face to Centerline Distance | 8.500 INCHES IN |
| Nominal Outside Diameter | 10.500 INCHES FIRST END IN |
| Nominal Outside Diameter | 12.500 INCHES SECOND END IN |
| Bolt Hole Quantity | 12 SECOND END |
| Bolt Hole Quantity | 8 FIRST END |
| First Connection Face to Centerline Distance | 7.750 INCHES IN |
| Material | STEEL BODY |
| Raised Face Nominal Diameter | 8.500 INCHES SECOND END IN |
| Raised Face Nominal Diameter | 5.000 INCHES FIRST END IN |
| Opening Pressure Setting | 660.0 POUNDS PER SQUARE INCH LBS |
| Valve Operation Method | AUTOMATIC |
| Raised Face Nominal Height | 0.250 INCHES FIRST END IN |
| Raised Face Nominal Height | 0.062 INCHES SECOND END IN |
| Nominal Thickness | 1.438 INCHES SECOND END IN |
| Nominal Thickness | 1.875 INCHES FIRST END IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| D-82K 616T685PSI | 5/9 Secondary reference Kunkle Industries Inc Lonergan Valve Div |
| A-2108 | D/9 Drawing number reference only Anderson Greenwood Lp Dba Anderson Greenwood Crosby |
| A-2108 D-82K 616T685PSI | 3/9 Design control — primary reference Anderson Greenwood Lp Dba Anderson Greenwood Crosby |
| D-82K 616T685PSI | 5/9 Secondary reference Anderson Greenwood Lp Dba Anderson Greenwood Crosby |
| A-2108 | 5/9 Secondary reference Kunkle Industries Inc Lonergan Valve Div |
| 1916-00-KT-2-CC-MS-34-RF-SS-HP | 5/9 Secondary reference Dresser, Inc. Dba Dresser Equipment Group Div Industrial Valve Operations, Dresse |
| A-2108 D-82K 616T685PSI | 5/9 Secondary reference Kunkle Industries Inc Lonergan Valve Div |
NSN 4820-01-333-0089 is a Valve,safety Relief, classified under FSC 4820, Valves, Nonpowered. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 5360-01-333-2672, 2920-01-586-7796. Verify interchangeability with system specifications before substitution.
Key specifications for 4820-01-333-0089: Flow Control Device: DISK; Flange Shape: ROUND WITH HOLES ALL ENDS; Flange Face Design: RAISED STRAIGHT ALL ENDS; Bolt Circle Nominal Diameter: 8.000 INCHES FIRST END IN. 25 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.