NSN 4820-01-708-6648 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-708-6648. Manufacturer of record part number: RK4-350ASTCK2.
Manufacturer of record: Zurn Industries Inc Wilkins Regulator Co Div
Identification
NSN: 4820-01-708-6648
NIIN: 017086648
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: RK4-350ASTCK2
Manufacturer: Zurn Industries Inc Wilkins Regulator Co Div
General Description
The Valve,check, cataloged under National Stock Number 4820-01-708-6648, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Zurn Industries Inc Wilkins Regulator Co Div. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Zurn Industries Inc Wilkins Regulator Co Div (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 4820-01-708-6648?
NSN 4820-01-708-6648 is a Valve,check, manufactured by Zurn Industries Inc Wilkins Regulator Co Div, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-708-6648?
NSN 4820-01-708-6648 has 2 manufacturer part numbers on file: RK-350ASTCK2 (Zurn Industries Ltd), RK4-350ASTCK2 (Zurn Industries Inc Wilkins Regulator Co Div).
What are the specifications of RK4-350ASTCK2?
Key specifications for RK4-350ASTCK2: Part Name Assigned by Controlling Agency: LARGE DIAMETER BACKFLOW PREVENTER REPAIR KIT. 0 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-708-6648 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.