The Valve,safety Relief, cataloged under National Stock Number 4820-01-181-3547, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Dante Valve Company. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 10 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-181-3547 |
| Primary Part Number | BAMAA07SCC |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Dante Valve Company |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Furnished Items and Quantity | 2 TAILPIECE AND 2 NUT |
| Nominal Pipe Size Accommodated | 0.500 INCHES ALL ENDS IN |
| Connection Style | SOCKET WITH BRAZING RING ALL ENDS |
| Connection Type | UNTHREADED INTERNAL PIPE ALL ENDS |
| Style Designator | ANGLE |
| Operating Pressure | 350.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS |
| Operating Pressure | 352.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS |
| Adjustable Pressure Range | +110.0 TO 140.0 POUNDS PER SQUARE INCH LBS |
| Bonnet Type | INSIDE SPRING |
| Disk Loading Method | SPRING |
| Bonnet Attachment Method | UNION |
| Material | COPPER ALLOY BODY |
| Material | STEEL COMP 316 STEM |
| Valve Operation Method | AUTOMATIC |
| 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 |
|---|---|
| BAMAA07SCC PRIMARY | Dante Valve Company (USA) |
| NMP-110 1/2IN 101 TO 140 PSI | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| L2120 | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| L-2120-C 1/2 INCH PRIMARY | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| Reference | Meaning |
|---|---|
| NMP-110 1/2IN 101 TO 140 PSI | 5/9 Secondary reference Anderson Greenwood Lp Dba Anderson Greenwood Crosby |
| NMP-110 101 TO 140PSI | 5/9 Secondary reference Kunkle Industries Inc Lonergan Valve Div |
| L2120 | 5/9 Secondary reference Kunkle Industries Inc Lonergan Valve Div |
| L2120 | 5/9 Secondary reference Anderson Greenwood Lp Dba Anderson Greenwood Crosby |
| L-2120-C 1/2 INCH | 5/9 Secondary reference Kunkle Industries Inc Lonergan Valve Div |
| L-2120-C 1/2 INCH | 5/9 Secondary reference Anderson Greenwood Lp Dba Anderson Greenwood Crosby |
| NMP-110 1/2IN 101 TO 140 PSI | 5/9 Secondary reference Kunkle Industries Inc Lonergan Valve Div |
| NMP-110 101 T0 | C/1 Advisory reference — outside the item-of-supply concept Kunkle Industries Inc Lonergan Valve Div |
| BAMAA07SCC | 5/9 Secondary reference Danco Valve Company |
| D50UU-101T140-1/2INCH | 5/9 Secondary reference Danco Valve Company |
NSN 4820-01-181-3547 is a Valve,safety Relief, manufactured by Dante Valve Company, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-181-3547 has 4 manufacturer part numbers on file: BAMAA07SCC (Dante Valve Company), NMP-110 1/2IN 101 TO 140 PSI (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), L2120 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), L-2120-C 1/2 INCH (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team).
Key specifications for BAMAA07SCC: Flow Control Device: DISK; Furnished Items and Quantity: 2 TAILPIECE AND 2 NUT; Nominal Pipe Size Accommodated: 0.500 INCHES ALL ENDS IN; Connection Style: SOCKET WITH BRAZING RING ALL ENDS. 15 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.