NSN 4820-00-620-8515 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-620-8515. Manufacturer of record part number: VWW867.
Thread Length: 0.750 INCHES NOMINAL SINGLE THREADED PORTION IN
Body Inside Diameter: 4.375 INCHES NOMINAL IN
Nominal Thread Size: 5.187 INCHES SINGLE THREADED PORTION IN
Under Flange Height: 1.750 INCHES NOMINAL IN
Thread Class: 2A SINGLE THREADED PORTION A
Thread Quantity Per Inch: 18 SINGLE THREADED PORTION
Identification
NSN: 4820-00-620-8515
NIIN: 006208515
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: VWW867
Manufacturer: Ashcroft Inc Dba Heise
General Description
The Seat,valve, cataloged under National Stock Number 4820-00-620-8515, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Ashcroft Inc Dba Heise. Government technical data includes 10 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. Current acquisition status: Active.
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097
4820-00-000-0097 · Item name not on file
4820-00-001-0010
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4820-00-001-0020 · Item name not on file
4820-00-001-0021
4820-00-001-0021 · Item name not on file
4820-00-001-0032
4820-00-001-0032 · Item name not on file
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4820-00-001-0042 · Item name not on file
4820-00-001-1230
4820-00-001-1230 · Item name not on file
Frequently Asked Questions
What is NSN 4820-00-620-8515?
NSN 4820-00-620-8515 is a Seat,valve, manufactured by Ashcroft Inc Dba Heise, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-00-620-8515?
NSN 4820-00-620-8515 has 2 manufacturer part numbers on file: VWW867 (Ashcroft Inc Dba Heise), 5VRW72PC4 (Ashcroft Inc Dba Heise).
What are the specifications of VWW867?
Key specifications for VWW867: Flange Diameter: 5.187 INCHES NOMINAL IN; Thread Length: 0.750 INCHES NOMINAL SINGLE THREADED PORTION IN; Body Inside Diameter: 4.375 INCHES NOMINAL IN; Nominal Thread Size: 5.187 INCHES SINGLE THREADED PORTION IN. 10 specifications are documented in the U.S. Government catalog.
Is NSN 4820-00-620-8515 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
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.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.