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NSN 4820-00-547-0718Government record, cited

Diaphragm, Actuator Valve, Special4820-00-547-0718

NSN 4820-00-547-0718 · NIIN 005470718 · Part number 1B7989-000A2
Fisher Controls Co Inc · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 22508
Government record, cited
NSN 4820-00-547-0718 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-547-0718. Manufacturer of record part number: 1B7989-000A2.
Also searched as  4820-00-547-0718 · 4820005470718 · NIIN 005470718 · 00-547-0718 · FSC 4820 Valves, Nonpowered · CAGE 22508 · 1B7989-000A2
Nearby stock numbers  ·
Features
  • Diaphragm,actuator Valve,special — FSC 4820
  • Shank Diameter: 0.688 INCHES NOMINAL IN
  • Outside Diameter: 2.875 INCHES NOMINAL IN
  • Style Designator: SPECIAL SHAPED
  • Bolt Hole Quantity: 6
  • Bolt Circle Diameter: 2.562 INCHES NOMINAL IN
  • Center Hole Diameter: 0.035 INCHES NOMINAL IN
  • Material: RUBBER AND STEEL
Identification
  • NSN: 4820-00-547-0718
  • NIIN: 005470718
  • FSC: 4820 — Valves, Nonpowered
  • FSG: 48 — Valves
  • Primary part number: 1B7989-000A2
  • Manufacturer: Fisher Controls Co Inc
General Description

The Diaphragm,actuator Valve,special, cataloged under National Stock Number 4820-00-547-0718, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Fisher Controls Co Inc. Government technical data includes 8 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
NSN4820-00-547-0718
Primary Part Number1B7989-000A2
Item NameDiaphragm,actuator Valve,special
FSC / FSG4820 / 48 — Valves, Nonpowered
ManufacturerFisher Controls Co Inc
StatusACTIVE
Shank Diameter0.688 INCHES NOMINAL IN
Outside Diameter2.875 INCHES NOMINAL IN
Style DesignatorSPECIAL SHAPED
Bolt Hole Quantity6
Bolt Circle Diameter2.562 INCHES NOMINAL IN
Center Hole Diameter0.035 INCHES NOMINAL IN
MaterialRUBBER AND STEEL
Hole Diameter0.190 INCHES NOMINAL IN
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
1B7989-000A2 PRIMARY Fisher Controls Co Inc (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 4820-00-547-0718?

NSN 4820-00-547-0718 is a Diaphragm,actuator Valve,special, manufactured by Fisher Controls Co Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-00-547-0718?

NSN 4820-00-547-0718 has 1 manufacturer part number on file: 1B7989-000A2 (Fisher Controls Co Inc).

What are the specifications of 1B7989-000A2?

Key specifications for 1B7989-000A2: Shank Diameter: 0.688 INCHES NOMINAL IN; Overall Height: 0.031 INCHES NOMINAL IN; Outside Diameter: 2.875 INCHES NOMINAL IN; Style Designator: SPECIAL SHAPED. 8 specifications are documented in the U.S. Government catalog.

Is NSN 4820-00-547-0718 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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