NSN 4820-01-620-9945 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-620-9945. Manufacturer of record part number: 2 FIV-15-SS-M-1/8.
Operating Pressure: 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Nominal Outside Diameter: 3.625 INCHES FIRST END IN
Disk Loading Method: SPRING
Material: STEEL COMP 316 BODY
Identification
NSN: 4820-01-620-9945
NIIN: 016209945
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 2 FIV-15-SS-M-1/8
Manufacturer: International Valve Corp Dba Check-All Valve Mfg. Co.
General Description
The Valve,check, cataloged under National Stock Number 4820-01-620-9945, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is International Valve Corp Dba Check-All Valve Mfg. Co.. Government technical data includes 10 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
4820-01-620-9945
Primary Part Number
2 FIV-15-SS-M-1/8
Item Name
Valve,check
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
International Valve Corp Dba Check-All Valve Mfg. Co.
Status
ACTIVE
Flow Control Device
DISK
Mounting Position
HORIZONTAL
Style Designator
DROP-IN CARTRIDGE
Operating Pressure
150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
International Valve Corp Dba Check-All Valve Mfg. Co. (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 4820-01-620-9945?
NSN 4820-01-620-9945 is a Valve,check, manufactured by International Valve Corp Dba Check-All Valve Mfg. Co., classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-620-9945?
NSN 4820-01-620-9945 has 1 manufacturer part number on file: 2 FIV-15-SS-M-1/8 (International Valve Corp Dba Check-All Valve Mfg. Co.).
What are the specifications of 2 FIV-15-SS-M-1/8?
Key specifications for 2 FIV-15-SS-M-1/8: Flow Control Device: DISK; Mounting Position: HORIZONTAL; Style Designator: DROP-IN CARTRIDGE; Operating Pressure: 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS. 10 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-620-9945 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.