The Valve,safety Relief, cataloged under National Stock Number 4820-01-470-4277, 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 12 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-470-4277 |
| Primary Part Number | NMP0705B05S0018 |
| 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 |
| Nominal Pipe Size Accommodated | 1.000 INCHES ALL ENDS IN |
| Connection Style | SOCKET ALL ENDS |
| Minimum Operating Temp | 100.0 FAHRENHEIT DEGF |
| Connection Type | UNTHREADED INTERNAL PIPE ALL ENDS |
| Style Designator | ANGLE FLANGED ENDS |
| Valve Size | 1.000 INCHES IN |
| Second Connection Face to Centerline Distance | 3.250 INCHES IN |
| Disk Loading Method | SPRING |
| First Connection Face to Centerline Distance | 3.500 INCHES IN |
| Material | BRONZE BODY |
| Material | COPPER ALLOY 464 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 |
|---|---|
| NMP-705 OPTION D 18T32 PSI | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| NMP0705B05S0018 PRIMARY | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| Reference | Meaning |
|---|---|
| NMP-705 | 5/9 Secondary reference Kunkle Industries Inc Lonergan Valve Div |
| CDS-532 ITEM 5 | 5/9 Secondary reference Kunkle Industries Inc Lonergan Valve Div |
| LL-2110-C 1IN 1 | 5/9 Secondary reference Kunkle Industries Inc Lonergan Valve Div |
| NMP-705 OPTION D 18T32 PSI | 5/9 Secondary reference Emerson Automation Solutions Final Control Us Lp Div Navy Product Team |
| LL2110-C 1IN 18T32 PSI | 5/9 Secondary reference Emerson Automation Solutions Final Control Us Lp Div Navy Product Team |
NSN 4820-01-470-4277 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 4820-01-470-4277 has 2 manufacturer part numbers on file: NMP-705 OPTION D 18T32 PSI (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), NMP0705B05S0018 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team).
Key specifications for NMP0705B05S0018: Nominal Pipe Size Accommodated: 1.000 INCHES ALL ENDS IN; Connection Style: SOCKET ALL ENDS; Minimum Operating Temp: 100.0 FAHRENHEIT DEGF; Connection Type: UNTHREADED INTERNAL PIPE ALL ENDS. 12 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.