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NSN 4820-01-312-1844Government record, cited

Valve, Bleeder, Hydraulic System4820-01-312-1844

NSN 4820-01-312-1844 · NIIN 013121844 · Part number B305620
Control Flow, Inc. Dba Control Flow Inc · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 3X894
Government record, cited
NSN 4820-01-312-1844 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-312-1844. Manufacturer of record part number: B305620.
Also searched as  4820-01-312-1844 · 4820013121844 · NIIN 013121844 · 01-312-1844 · FSC 4820 Valves, Nonpowered · CAGE 3X894 · B305620
Nearby stock numbers  ·
Features
  • Valve,bleeder,hydraulic System — FSC 4820
  • Flow Control Device: BALL
  • Style Designator: STRAIGHT THRU
  • 1 manufacturer part number on file
  • Manufacturer of record: Control Flow, Inc. Dba Control Flow Inc
Identification
  • NSN: 4820-01-312-1844
  • NIIN: 013121844
  • FSC: 4820 — Valves, Nonpowered
  • FSG: 48 — Valves
  • Primary part number: B305620
  • Manufacturer: Control Flow, Inc. Dba Control Flow Inc
General Description

The Valve,bleeder,hydraulic System, cataloged under National Stock Number 4820-01-312-1844, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Control Flow, Inc. Dba Control Flow Inc. Government technical data includes 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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
ParameterValue
NSN4820-01-312-1844
Primary Part NumberB305620
Item NameValve,bleeder,hydraulic System
FSC / FSG4820 / 48 — Valves, Nonpowered
ManufacturerControl Flow, Inc. Dba Control Flow Inc
StatusACTIVE
Flow Control DeviceBALL
Style DesignatorSTRAIGHT THRU
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
B305620 PRIMARY Control Flow, Inc. Dba Control Flow Inc (USA)
Reference documents
ReferenceMeaning
B305620 5/9 Secondary reference
Control Flow, Inc. Dba Westech Heavy Machinery Division Div Westech Heavy Machinery Division
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 4820-01-312-1844?

NSN 4820-01-312-1844 is a Valve,bleeder,hydraulic System, manufactured by Control Flow, Inc. Dba Control Flow Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-312-1844?

NSN 4820-01-312-1844 has 1 manufacturer part number on file: B305620 (Control Flow, Inc. Dba Control Flow Inc).

What are the specifications of B305620?

Key specifications for B305620: Flow Control Device: BALL; Style Designator: STRAIGHT THRU. 2 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-312-1844 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.
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