NSN 4820-01-050-8259 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-050-8259. Manufacturer of record part number: 6858646.
Also searched as4820-01-050-8259 ·
4820010508259 ·
NIIN 010508259 ·
01-050-8259 ·
FSC 4820 Valves, Nonpowered · CAGE 63005 · 6858646
General Characteristics Item Description: RUBBER EMS22670,0.360 IN. MIN 0.380 IN. MAX O/A OD IN
1 manufacturer part number on file
Manufacturer of record: Rolls-Royce Corporation
Identification
NSN: 4820-01-050-8259
NIIN: 010508259
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 6858646
Manufacturer: Rolls-Royce Corporation
General Description
The Poppet,valve, cataloged under National Stock Number 4820-01-050-8259, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Rolls-Royce Corporation. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
Technical Specifications
Parameter
Value
NSN
4820-01-050-8259
Primary Part Number
6858646
Item Name
Poppet,valve
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Rolls-Royce Corporation
Status
ACTIVE
General Characteristics Item Description
RUBBER EMS22670,0.360 IN. MIN 0.380 IN. MAX O/A OD IN
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 4820-01-050-8259?
NSN 4820-01-050-8259 is a Poppet,valve, manufactured by Rolls-Royce Corporation, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-050-8259?
NSN 4820-01-050-8259 has 1 manufacturer part number on file: 6858646 (Rolls-Royce Corporation).
What are the specifications of 6858646?
Key specifications for 6858646: General Characteristics Item Description: RUBBER EMS22670,0.360 IN. MIN 0.380 IN. MAX O/A OD IN. 1 specification is documented in the U.S. Government catalog.
Is NSN 4820-01-050-8259 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.