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NSN 4820-01-508-1833Government record, cited

Valve, Bleeder, Hydraulic System4820-01-508-1833

NSN 4820-01-508-1833 · NIIN 015081833 · Part number 480762
Cal-West Machining · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 0NM27
Government record, cited
NSN 4820-01-508-1833 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-508-1833. Manufacturer of record part number: 480762.
Also searched as  4820-01-508-1833 · 4820015081833 · NIIN 015081833 · 01-508-1833 · FSC 4820 Valves, Nonpowered · CAGE 0NM27 · 480762
Nearby stock numbers  ·
Features
  • Valve,bleeder,hydraulic System — FSC 4820
  • Connection Style: GASKET SEAL (PIPE) FIRST END
  • Connection Type: THREADED EXTERNAL PIPE ALL ENDS
  • Nominal Outside Diameter: 0.250 INCHES ALL ENDS IN
  • Media for Which Designed: HYDRAULIC FLUID, PETROLEUM BASE SINGLE RESPONSE
  • Material: STEEL CORROSION RESISTING BODY
  • Valve Operation Method: MANUAL
  • 1 manufacturer part number on file
Identification
  • NSN: 4820-01-508-1833
  • NIIN: 015081833
  • FSC: 4820 — Valves, Nonpowered
  • FSG: 48 — Valves
  • Primary part number: 480762
  • Manufacturer: Cal-West Machining
General Description

The Valve,bleeder,hydraulic System, cataloged under National Stock Number 4820-01-508-1833, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Cal-West Machining. Government technical data includes 6 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
ParameterValue
NSN4820-01-508-1833
Primary Part Number480762
Item NameValve,bleeder,hydraulic System
FSC / FSG4820 / 48 — Valves, Nonpowered
ManufacturerCal-West Machining
StatusACTIVE
Connection StyleGASKET SEAL (PIPE) FIRST END
Connection TypeTHREADED EXTERNAL PIPE ALL ENDS
Nominal Outside Diameter0.250 INCHES ALL ENDS IN
Media for Which DesignedHYDRAULIC FLUID, PETROLEUM BASE SINGLE RESPONSE
MaterialSTEEL CORROSION RESISTING BODY
Valve Operation MethodMANUAL
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
480762 PRIMARY Cal-West Machining (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 4820-01-508-1833?

NSN 4820-01-508-1833 is a Valve,bleeder,hydraulic System, manufactured by Cal-West Machining, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-508-1833?

NSN 4820-01-508-1833 has 1 manufacturer part number on file: 480762 (Cal-West Machining).

What are the specifications of 480762?

Key specifications for 480762: Connection Style: GASKET SEAL (PIPE) FIRST END; Connection Type: THREADED EXTERNAL PIPE ALL ENDS; Nominal Outside Diameter: 0.250 INCHES ALL ENDS IN; Special Features: CONSISTS OF SPHERICAL BALL .156 DIA SS AND SETSCREW 1/4-20X5/16 P/N 442404; BALL IS P/N 421402. 6 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-508-1833 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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