NSN 4820-01-646-3619 · NIIN 016463619 · Part number 81PS1F68-8/140
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 15187
Government record, cited
NSN 4820-01-646-3619 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-646-3619. Manufacturer of record part number: 81PS1F68-8/140.
Also searched as4820-01-646-3619 ·
4820016463619 ·
NIIN 016463619 ·
01-646-3619 ·
FSC 4820 Valves, Nonpowered · CAGE 15187 · 81PS1F68-8/140
Operating Pressure: 6.3 KILOGRAMS PER SQUARE CENTIMETER NOMINAL POWER DRIVE KG
Bonnet Type: INSIDE SPRING
Bonnet Attachment Method: THREADED
Material: PLASTIC POLYPROPYLENE SEAT
Valve Operation Method: AIR
1 manufacturer part number on file
Identification
NSN: 4820-01-646-3619
NIIN: 016463619
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 81PS1F68-8/140
Manufacturer: Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
General Description
The Valve,safety Relief, cataloged under National Stock Number 4820-01-646-3619, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Emerson Automation Solutions Final Control Us Lp Div Navy Product Team. Government technical data includes 6 specifications, 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. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
4820-01-646-3619
Primary Part Number
81PS1F68-8/140
Item Name
Valve,safety Relief
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
Status
ACTIVE
Style Designator
ANGLE W/OFFSET
Operating Pressure
6.3 KILOGRAMS PER SQUARE CENTIMETER NOMINAL POWER DRIVE KG
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (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 4820-01-646-3619?
NSN 4820-01-646-3619 is a Valve,safety Relief, manufactured by Emerson Automation Solutions Final Control Us Lp Div Navy Product Team, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-646-3619?
NSN 4820-01-646-3619 has 1 manufacturer part number on file: 81PS1F68-8/140 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team).
What are the specifications of 81PS1F68-8/140?
Key specifications for 81PS1F68-8/140: Style Designator: ANGLE W/OFFSET; Operating Pressure: 6.3 KILOGRAMS PER SQUARE CENTIMETER NOMINAL POWER DRIVE KG; Bonnet Type: INSIDE SPRING; Bonnet Attachment Method: THREADED. 6 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-646-3619 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.