NSN 4820-01-564-4990 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-564-4990. Manufacturer of record part number: 233-B-2PP.
Operating Pressure: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Valve Size: 0.250 INCHES IN
Face to Face Distance: 2.250 INCHES IN
Material: ALUMINUM AND STEEL OVERALL
1 manufacturer part number on file
Manufacturer of record: Safran Aerosystems Ex Safran Aerotechnics Oxy
Identification
NSN: 4820-01-564-4990
NIIN: 015644990
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 233-B-2PP
Manufacturer: Safran Aerosystems Ex Safran Aerotechnics Oxy
General Description
The Valve,check, cataloged under National Stock Number 4820-01-564-4990, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Safran Aerosystems Ex Safran Aerotechnics Oxy. Government technical data includes 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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
4820-01-564-4990
Primary Part Number
233-B-2PP
Item Name
Valve,check
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Safran Aerosystems Ex Safran Aerotechnics Oxy
Status
ACTIVE
Style Designator
STRAIGHT THRU FLANGED ENDS
Operating Pressure
3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Safran Aerosystems Ex Safran Aerotechnics Oxy (FRA)
Reference documents
Reference
Meaning
233B-2PP
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 4820-01-564-4990?
NSN 4820-01-564-4990 is a Valve,check, manufactured by Safran Aerosystems Ex Safran Aerotechnics Oxy, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-564-4990?
NSN 4820-01-564-4990 has 1 manufacturer part number on file: 233-B-2PP (Safran Aerosystems Ex Safran Aerotechnics Oxy).
What are the specifications of 233-B-2PP?
Key specifications for 233-B-2PP: Style Designator: STRAIGHT THRU FLANGED ENDS; Operating Pressure: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Valve Size: 0.250 INCHES IN; Face to Face Distance: 2.250 INCHES IN. 5 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-564-4990 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.