Bypass Valve Assy 4820-01-517-4081 NSN 4820-01-517-4081 · NIIN 015174081 · Part number 900A208-2
Enviro Systems Inc · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 0B9E8
NSN 4820-01-517-4081 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-517-4081. Manufacturer of record part number: 900A208-2 .
Also searched as
4820-01-517-4081 ·
4820015174081 ·
NIIN 015174081 ·
01-517-4081 ·
FSC 4820 Valves, Nonpowered · CAGE 0B9E8 · 900A208-2
Nearby stock numbers
← 4820-01-517-4041 Valve, Expansion
·
4820-01-517-4219 Valve, Ball →
4820-01-517-4081 — Valves, Nonpowered
Features
Bypass Valve Assy — FSC 4820 1 manufacturer part number on file Manufacturer of record: Enviro Systems Inc
Identification
NSN: 4820-01-517-4081
NIIN: 015174081
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 900A208-2
Manufacturer: Enviro Systems Inc
General Description
The Bypass Valve Assy, cataloged under National Stock Number 4820-01-517-4081, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Enviro Systems Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Catalog Facts
Item Name Bypass Valve Assy FSC / FSG 4820 — Valves, Nonpowered (FSG 48) Manufacturers Enviro Systems Inc (CAGE 0B9E8)
Technical Specifications
Parameter Value NSN 4820-01-517-4081 Primary Part Number 900A208-2 Item Name Bypass Valve Assy FSC / FSG 4820 / 48 — Valves, Nonpowered Manufacturer Enviro Systems Inc Status ACTIVE
Lifecycle & Compliance
Acquisition Status ACTIVE DEMIL Code DEMIL A — No Demilitarization Required Hazard No hazard code in the DLA record (HMIC N) Criticality Code X
Cross-Reference Index
Part Number Manufacturer
900A208-2 PRIMARY Enviro Systems Inc (USA)
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 4820-01-517-4081?
NSN 4820-01-517-4081 is a Bypass Valve Assy, manufactured by Enviro Systems Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-517-4081?
NSN 4820-01-517-4081 has 1 manufacturer part number on file: 900A208-2 (Enviro Systems Inc).
Is NSN 4820-01-517-4081 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.
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