NSN 4820-01-666-9626 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-666-9626. Manufacturer of record part number: 4M4F-RL4A-VT-SS-MN-KB.
Also searched as4820-01-666-9626 ·
4820016669626 ·
NIIN 016669626 ·
01-666-9626 ·
FSC 4820 Valves, Nonpowered · CAGE 54939 · 4M4F-RL4A-VT-SS-MN-KB
Operating Pressure: 50.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Material: RUBBER SYNTHETIC PACKING
Material: STEEL STAINLESS - USE STB000 BODY
Valve Operation Method: MANUAL
1 manufacturer part number on file
Manufacturer of record: Parker-Hannifin Corp Div Instrumentation Products Division
Identification
NSN: 4820-01-666-9626
NIIN: 016669626
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 4M4F-RL4A-VT-SS-MN-KB
Manufacturer: Parker-Hannifin Corp Div Instrumentation Products Division
General Description
The Valve,safety Relief, cataloged under National Stock Number 4820-01-666-9626, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Parker-Hannifin Corp Div Instrumentation Products Division. Government technical data includes 4 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
4820-01-666-9626
Primary Part Number
4M4F-RL4A-VT-SS-MN-KB
Item Name
Valve,safety Relief
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Parker-Hannifin Corp Div Instrumentation Products Division
Status
ACTIVE
Operating Pressure
50.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Parker-Hannifin Corp Div Instrumentation Products Division (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 4820-01-666-9626?
NSN 4820-01-666-9626 is a Valve,safety Relief, manufactured by Parker-Hannifin Corp Div Instrumentation Products Division, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-666-9626?
NSN 4820-01-666-9626 has 1 manufacturer part number on file: 4M4F-RL4A-VT-SS-MN-KB (Parker-Hannifin Corp Div Instrumentation Products Division).
What are the specifications of 4M4F-RL4A-VT-SS-MN-KB?
Key specifications for 4M4F-RL4A-VT-SS-MN-KB: Operating Pressure: 50.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Special Features: RING MATL PTFE; SPRING KIT INCLUDED; Part Name Assigned by Controlling Agency: ADJUSTABLE RELIEF VALVE; Material: RUBBER SYNTHETIC PACKING. 4 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-666-9626 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.