Bolt Circle Nominal Diameter: 3.937 INCHES FIRST END IN
Connection Type: FLANGE FIRST END
Style Designator: STRAIGHT THRU
Bolt Hole Nominal Diameter: 0.562 INCHES FIRST END IN
Operating Pressure: 650.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Identification
NSN: 4820-01-199-6526
NIIN: 011996526
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
General Description
The Valve,ball, cataloged under National Stock Number 4820-01-199-6526, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 11 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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
4820-01-199-6526
Item Name
Valve,ball
FSC / FSG
4820 / 48 — Valves, Nonpowered
Status
ACTIVE
Flange Shape
ROUND WITH HOLES FIRST END
Flange Face Design
PLAIN FIRST END
Bolt Circle Nominal Diameter
3.937 INCHES FIRST END IN
Connection Type
FLANGE FIRST END
Style Designator
STRAIGHT THRU
Bolt Hole Nominal Diameter
0.562 INCHES FIRST END IN
Operating Pressure
650.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Bolt Hole Quantity
6 FIRST END
Media for Which Designed
WATER, SALT SINGLE RESPONSE
Valve Operation Method
MANUAL
Nominal Thickness
0.812 INCHES FIRST END IN
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
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
2640-044BSC
3/2Design control — primary reference
U.S. Government activity
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 4820-01-199-6526?
NSN 4820-01-199-6526 is a Valve,ball, classified under FSC 4820, Valves, Nonpowered. Status: active.
What are the specifications of 4820-01-199-6526?
Key specifications for 4820-01-199-6526: Flange Shape: ROUND WITH HOLES FIRST END; Flange Face Design: PLAIN FIRST END; Bolt Circle Nominal Diameter: 3.937 INCHES FIRST END IN; Connection Type: FLANGE FIRST END. 11 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-199-6526 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.