The Valve,relief,pressure and Temper, cataloged under National Stock Number 4820-01-310-7717, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Greno Industries, Inc. Dba Greno Industries Inc. Government technical data includes 25 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-310-7717 |
| Primary Part Number | 6350-629 |
| Item Name | Valve,relief,pressure and Temper |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Greno Industries, Inc. Dba Greno Industries Inc |
| Status | ACTIVE |
| First End Bolt Hole Quantity | 8 |
| Flow Control Device | DISK, FLAT |
| Temp Rating | 850.0 FAHRENHEIT DEGF |
| Second End Relationship with First End | NOT IDENTICAL |
| Body Style | ANGLE GIVE "ADQM" AND "ADQN" ONLY IF FLANGED ONE OR TWO ENDS |
| First End Style Designator | RAISED |
| Second End Bolt Hole Quantity | 8 |
| First Connection Face to Centerline Distance | 5.938 INCHES MINIMUM AND 6.062 INCHES MAXIMUM IN |
| First End Bolt Hole Diameter | 0.875 INCHES NOMINAL IN |
| End Connection Quantity | 2 |
| Second Connection Face to Centerline Distance | 5.938 INCHES MINIMUM AND 6.062 INCHES MAXIMUM IN |
| Second End Style Designator | RAISED |
| Second End Flange Shape Style | ROUND W/ BOLT HOLES |
| Temp Control Device Type | THERMOSTATIC |
| First End Connection Type | RAISED FACE FLANGE |
| Second End Flange Outside Diameter | 7.500 INCHES NOMINAL IN |
| First End Flange Shape Style | ROUND W/ BOLT HOLES |
| First End Raised Face Height | 0.062 INCHES NOMINAL IN |
| Material | STEEL BODY |
| Material | STEEL FLOW CONTROL DEVICE |
| Material | STEEL CORROSION RESISTING STEM |
| Media for Which Designed | STEAM |
| Second End Raised Face Diameter | 4.750 INCHES NOMINAL IN |
| Second End Connection Type | RAISED FACE FLANGE |
| Second End Bolt Hole Diameter | 0.875 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 6350-629 PRIMARY | Greno Industries, Inc. Dba Greno Industries Inc (USA) |
NSN 4820-01-310-7717 is a Valve,relief,pressure and Temper, manufactured by Greno Industries, Inc. Dba Greno Industries Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-310-7717 has 1 manufacturer part number on file: 6350-629 (Greno Industries, Inc. Dba Greno Industries Inc).
1 possible match (shared part number, not a government interchangeability claim): 6650-01-643-5908. Verify interchangeability with system specifications before substitution.
Key specifications for 6350-629: First End Bolt Hole Quantity: 8; Flow Control Device: DISK, FLAT; Temp Rating: 850.0 FAHRENHEIT DEGF; Second End Relationship with First End: NOT IDENTICAL. 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.