The Stem,fluid Valve, cataloged under National Stock Number 4820-00-336-5986, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer. Government technical data includes 2 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through both NSN and commercial part number lookups. 43 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4820-00-336-5986 |
| Primary Part Number | 426306 |
| Item Name | Stem,fluid Valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer |
| Status | ACTIVE |
| Largest Outside Diameter | 0.500 INCHES NOMINAL IN |
| Material | COPPER ALLOY |
| 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 |
|---|---|
| 426306 PRIMARY | Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer (USA) |
| Reference | Meaning |
|---|---|
| A0G1S5501-75ALT1PC45 | 5/9 Secondary reference U.S. Government activity |
| AM371S5501-287240PC45 | 5/9 Secondary reference U.S. Government activity |
| S4700H3155833REVAPC45 | 5/9 Secondary reference Naval Sea Systems Command |
| S4700H3155160REVBPC45 | 5/9 Secondary reference U.S. Government activity |
| E2327PC45 | 5/9 Secondary reference Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer |
| E1705PC45 | 5/9 Secondary reference Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer |
| AM57S55-111ALT1PC45 | 5/9 Secondary reference Naval Sea Systems Command |
| E2080PC45 | 5/9 Secondary reference Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer |
| AM371S55-110ALT1PC45 | 5/9 Secondary reference Naval Sea Systems Command |
| AM57S55-032PC45 | 5/9 Secondary reference U.S. Government activity |
| E2361PC45 | 5/9 Secondary reference Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer |
| E1727PC45 | 5/9 Secondary reference Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer |
| E2103PC45 | 5/9 Secondary reference Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer |
| QZ201DBRS | 5/9 Secondary reference Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer |
| E1797PC45 | 5/9 Secondary reference Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer |
| S4700H3155962REVBPC45 | 5/9 Secondary reference Naval Sea Systems Command |
| E2366PC45 | 5/9 Secondary reference Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer |
| AM57S55-034PC45 | 5/9 Secondary reference Naval Sea Systems Command |
| E1945PC45 | 5/9 Secondary reference Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer |
| AM57S55-111ALT1PC45 | 5/9 Secondary reference U.S. Government activity |
NSN 4820-00-336-5986 is a Stem,fluid Valve, manufactured by Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-336-5986 has 1 manufacturer part number on file: 426306 (Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer).
1 possible match (shared part number, not a government interchangeability claim): 3040-00-452-4355. Verify interchangeability with system specifications before substitution.
Key specifications for 426306: Largest Outside Diameter: 0.500 INCHES NOMINAL IN; Overall Length: 4.375 INCHES NOMINAL IN; Material: COPPER ALLOY. 2 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.