The Valve,air Venting,steam, cataloged under National Stock Number 4520-01-429-8430, is classified within Federal Supply Class 4520 (Space and Water Heating Equipment) of the Plumbing, Heating, and Waste Disposal group. The manufacturer of record is Dover Corp Groen Div. Government technical data includes 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4520-01-429-8430 |
| Primary Part Number | 084098 |
| Item Name | Valve,air Venting,steam |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Dover Corp Groen Div |
| Status | ACTIVE |
| Valve Air Return Prevention | NOT REQUIRED |
| Valve Connection Size | 0.5625 INCHES IN |
| Overall Diameter | 0.875 INCHES MINIMUM AND 2.000 INCHES MAXIMUM IN |
| Operating Pressure | 235.2 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS |
| Valve Shape | ANGLED |
| Valve Type | QUICK AIR VENT |
| 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 |
NSN 4520-01-429-8430 is a Valve,air Venting,steam, manufactured by Dover Corp Groen Div, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-01-429-8430 has 2 manufacturer part numbers on file: 084098 (Arr/crs Inc Columbus Restaurant Service), 084098 (Dover Corp Groen Div).
Key specifications for 084098: Valve Air Return Prevention: NOT REQUIRED; Overall Height: 1.750 INCHES NOMINAL IN; Valve Connection Size: 0.5625 INCHES IN; Overall Diameter: 0.875 INCHES MINIMUM AND 2.000 INCHES MAXIMUM IN. 7 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.