NSN 4820-01-286-7639 · NIIN 012867639 · Part number LHD8429 ITEM 4 1/2IN
William E Williams Valve Corp · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 79342
Government record, cited
NSN 4820-01-286-7639 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-286-7639. Manufacturer of record part number: LHD8429 ITEM 4 1/2IN.
Manufacturer of record: William E Williams Valve Corp
Identification
NSN: 4820-01-286-7639
NIIN: 012867639
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: LHD8429 ITEM 4 1/2IN
Manufacturer: William E Williams Valve Corp
General Description
The Stem,fluid Valve, cataloged under National Stock Number 4820-01-286-7639, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is William E Williams Valve Corp. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
C/1Advisory reference — outside the item-of-supply concept
William E Williams Valve Corp
No interchangeability data on file.
Other items in FSC 4820 — Valves, Nonpowered
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
VALVE,ROTARY,SELECTOR
4820-00-001-0020
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
4820-00-001-0037
VALVE,SAFETY RELIEF
4820-00-001-0042
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 4820-01-286-7639?
NSN 4820-01-286-7639 is a Stem,fluid Valve, manufactured by William E Williams Valve Corp, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-286-7639?
NSN 4820-01-286-7639 has 1 manufacturer part number on file: LHD8429 ITEM 4 1/2IN (William E Williams Valve Corp).
What are the specifications of LHD8429 ITEM 4 1/2IN?
Key specifications for LHD8429 ITEM 4 1/2IN: Material: STEEL. 1 specification is documented in the U.S. Government catalog.
Is NSN 4820-01-286-7639 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.