NSN 4820-01-280-3959 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-280-3959. Manufacturer of record part number: FRP-3 2IN FP7 W/GEAR DD1639B.
Bolt Circle Nominal Diameter: 4.438 INCHES ALL ENDS IN
Connection Type: FLANGE ALL ENDS
Bolt Hole Nominal Diameter: 0.500 INCHES ALL ENDS IN
Flow Style: THREE-WAY THREE PORT 90 DEGREE PLUG TURN
Bolt Hole Quantity: 6 ALL ENDS
Material: BRONZE BODY
Identification
NSN: 4820-01-280-3959
NIIN: 012803959
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: FRP-3 2IN FP7 W/GEAR DD1639B
Manufacturer: Cunico Corporation
General Description
The Valve,plug, cataloged under National Stock Number 4820-01-280-3959, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Cunico Corporation. Government technical data includes 9 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.
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 4820-01-280-3959?
NSN 4820-01-280-3959 is a Valve,plug, manufactured by Cunico Corporation, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-280-3959?
NSN 4820-01-280-3959 has 1 manufacturer part number on file: FRP-3 2IN FP7 W/GEAR DD1639B (Cunico Corporation).
What are the specifications of FRP-3 2IN FP7 W/GEAR DD1639B?
Key specifications for FRP-3 2IN FP7 W/GEAR DD1639B: Flange Shape: ROUND WITH HOLES ALL ENDS; Bolt Circle Nominal Diameter: 4.438 INCHES ALL ENDS IN; Connection Type: FLANGE ALL ENDS; Bolt Hole Nominal Diameter: 0.500 INCHES ALL ENDS IN. 9 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-280-3959 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.