The Valve,safety Relief, cataloged under National Stock Number 4820-01-296-7928, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Emerson Automation Solutions Final Control Us Lp Div Navy Product Team. Government technical data includes 21 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 9 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-296-7928 |
| Primary Part Number | NMP-1112-OPTION- |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Furnished Items and Quantity | 1 LEVER |
| Renewable Seat Ring Type | THREADED |
| Nominal Pipe Size Accommodated | 2.000 INCHES ALL ENDS IN |
| Connection Style | SOCKET WITH BRAZING RING ALL ENDS |
| Connection Type | UNTHREADED INTERNAL PIPE ALL ENDS |
| Style Designator | ANGLE |
| Operating Pressure | 400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Adjustable Pressure Range | +75.0 TO 89.0 POUNDS PER SQUARE INCH LBS |
| Features Provided | PRESSURE TIGHT OUTLET SIDE |
| Bonnet Type | INSIDE SPRING |
| Specification/standard Data | 81349-MIL-V-24332 GOVERNMENT SPECIFICATION |
| Maximum Operating Temp | 150.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Disk Loading Method | SPRING |
| Bonnet Attachment Method | UNION |
| Media for Which Designed | WATER-OIL-GAS SINGLE RESPONSE |
| Material | NICKEL ALLOY STEM |
| Material | NICKEL ALLOY FLOW CONTROL DEVICE |
| Material | NICKEL ALLOY SEAT |
| Material | COPPER ALLOY 922 BODY |
| Valve Operation Method | AUTOMATIC OR MANUAL |
| 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 |
|---|---|
| NMP-1112-OPTION- PRIMARY | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| BASAA06SHH PRIMARY | Dante Valve Company (USA) |
| Reference | Meaning |
|---|---|
| DL0-40H/B2 2IN75T89PSI,CDS-635 | 5/9 Secondary reference Kunkle Industries Inc Lonergan Valve Div |
| NMP-1112-OPTION-0 2IN 75T89 | 5/9 Secondary reference Anderson Greenwood Lp Dba Anderson Greenwood Crosby |
| D50UU-06 2IN | 5/9 Secondary reference Danco Valve Company |
| BASAA06SHH | 5/9 Secondary reference Danco Valve Company |
| NMP-1112 | 5/9 Secondary reference Kunkle Industries Inc Lonergan Valve Div |
| MIL-V-24332 | 5/9 Secondary reference U.S. Government activity |
| NMP-1112 | D/9 Drawing number reference only Anderson Greenwood Lp Dba Anderson Greenwood Crosby |
| NMP-1112 OPTION-O 2IN 75T89PSI | 5/9 Secondary reference Kunkle Industries Inc Lonergan Valve Div |
| MIL-DTL-24332 | 4/1 Identification reference U.S. Government activity |
NSN 4820-01-296-7928 is a Valve,safety Relief, manufactured by Emerson Automation Solutions Final Control Us Lp Div Navy Product Team, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-296-7928 has 2 manufacturer part numbers on file: NMP-1112-OPTION- (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), BASAA06SHH (Dante Valve Company).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-311-9464. Verify interchangeability with system specifications before substitution.
Key specifications for NMP-1112-OPTION-: Flow Control Device: DISK; Furnished Items and Quantity: 1 LEVER; Renewable Seat Ring Type: THREADED; Nominal Pipe Size Accommodated: 2.000 INCHES ALL ENDS IN. 21 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.