NSN 4820-01-339-3040 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-339-3040. Manufacturer of record part number: 4-250-150 CBJ.
Temp Rating: 40.0 CELSIUS MINIMUM AND 120.0 CELSIUS MAXIMUM DEGC
Outside Diameter: 3.500 INCHES NOMINAL IN
Style Designator: SPECIAL SHAPED
Taper Major Diameter: 2.400 INCHES MINIMUM AND 2.600 INCHES MAXIMUM IN
Material Thickness: 0.014 INCHES MINIMUM AND 0.020 INCHES MAXIMUM IN
Media for Which Designed: GAS OR LIQUID
Material: PLASTIC POLYVINYL CHLORIDE (PVC)
Identification
NSN: 4820-01-339-3040
NIIN: 013393040
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 4-250-150 CBJ
Manufacturer: Bellofram Corporation
General Description
The Diaphragm,actuator Valve,special, cataloged under National Stock Number 4820-01-339-3040, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Bellofram Corporation. Government technical data includes 7 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
4820-01-339-3040
Primary Part Number
4-250-150 CBJ
Item Name
Diaphragm,actuator Valve,special
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Bellofram Corporation
Status
ACTIVE
Temp Rating
40.0 CELSIUS MINIMUM AND 120.0 CELSIUS MAXIMUM DEGC
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 4820-01-339-3040?
NSN 4820-01-339-3040 is a Diaphragm,actuator Valve,special, manufactured by Bellofram Corporation, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-339-3040?
NSN 4820-01-339-3040 has 1 manufacturer part number on file: 4-250-150 CBJ (Bellofram Corporation).
What are the specifications of 4-250-150 CBJ?
Key specifications for 4-250-150 CBJ: Temp Rating: 40.0 CELSIUS MINIMUM AND 120.0 CELSIUS MAXIMUM DEGC; Outside Diameter: 3.500 INCHES NOMINAL IN; Style Designator: SPECIAL SHAPED; Taper Major Diameter: 2.400 INCHES MINIMUM AND 2.600 INCHES MAXIMUM IN. 7 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-339-3040 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.