The Valve,gate, cataloged under National Stock Number 4820-01-412-0283, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Evac North America Inc. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-412-0283 |
| Primary Part Number | 5500098-005 |
| Item Name | Valve,gate |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Evac North America Inc |
| Status | ACTIVE |
| Furnished Items and Quantity | 1 HANDWHEEL |
| Inlet Relationship with Outlet | IDENTICAL |
| Connection Type | FLANGE, ROUND W/HOLES |
| Valve Size | 6.000 INCHES IN |
| Bolt Hole Quantity | 8 |
| Pressure Class | ERR-060 |
| Material | STEEL CORROSION RESISTING SEAT |
| Material | STEEL CORROSION RESISTING BODY |
| Material | STEEL CORROSION RESISTING STEM |
| Material | STEEL CORROSION RESISTING DISK |
| Valve Operation Method | 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 |
|---|---|
| 5500098-005 PRIMARY | Evac North America Inc (USA) |
| 593-6904366 ITEM NO. V-8 | Naval Sea Systems Command (USA) |
| 6904366 ITEM NO.V-8 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 6904366 | D/9 Drawing number reference only Naval Sea Systems Command |
| 5500098-005 | 5/9 Secondary reference Envirovac Inc Dba Monogram Systems-Rockford Div |
| 5500098 | 5/9 Secondary reference Envirovac Inc Dba Monogram Systems-Rockford Div |
| 5500098 | 7/2 Vendor item drawing reference Evac North America Inc |
NSN 4820-01-412-0283 is a Valve,gate, manufactured by Evac North America Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-412-0283 has 3 manufacturer part numbers on file: 5500098-005 (Evac North America Inc), 593-6904366 ITEM NO. V-8 (Naval Sea Systems Command), 6904366 ITEM NO.V-8 (Naval Sea Systems Command).
2 possible matches (shared part number, not a government interchangeability claim): 4820-01-591-2786, 4320-01-591-9721. Verify interchangeability with system specifications before substitution.
Key specifications for 5500098-005: Furnished Items and Quantity: 1 HANDWHEEL; Inlet Relationship with Outlet: IDENTICAL; Connection Type: FLANGE, ROUND W/HOLES; Valve Size: 6.000 INCHES IN. 11 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.