NSN 4820-01-686-8779 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-686-8779. Manufacturer of record part number: 0887530.
Nearby stock numbers← 4820-01-686-8753 Parts Kit, Check Valve
·
4820-01-686-8789 Parts Kit, Check Valve →
4820-01-686-8779 — Valves, Nonpowered
Features
Parts Kit,check Valve — FSC 4820
Document Type: PARTS CATALOG
Supply Items and Quantities: DIAPHRAGM (1); TWO DISC ASSEMBLIES (2); STEM O-RINGS (1); COVER O-RING (1); TWO SEAT O-RINGS (2); AND RV SEAT O-RING (1)
Component Document Origin: INDUSTRIAL
Document Source: 79227
2 manufacturer part numbers on file
Manufacturer of record: Watts Regulator Company
Identification
NSN: 4820-01-686-8779
NIIN: 016868779
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 0887530
Manufacturer: Watts Regulator Company
General Description
The Parts Kit,check Valve, cataloged under National Stock Number 4820-01-686-8779, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Watts Regulator Company. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
4820-01-686-8779
Primary Part Number
0887530
Item Name
Parts Kit,check Valve
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Watts Regulator Company
Status
ACTIVE
Document Type
PARTS CATALOG
Supply Items and Quantities
DIAPHRAGM (1); TWO DISC ASSEMBLIES (2); STEM O-RINGS (1); COVER O-RING (1); TWO SEAT O-RINGS (2); AND RV SEAT O-RING (1)
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 4820-01-686-8779?
NSN 4820-01-686-8779 is a Parts Kit,check Valve, manufactured by Watts Regulator Company, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-686-8779?
NSN 4820-01-686-8779 has 2 manufacturer part numbers on file: 0887530 (Watts Regulator Company), RK SS009 RT (Watts Regulator Company).
What are the specifications of 0887530?
Key specifications for 0887530: Document Type: PARTS CATALOG; Supply Items and Quantities: DIAPHRAGM (1); TWO DISC ASSEMBLIES (2); STEM O-RINGS (1); COVER O-RING (1); TWO SEAT O-RINGS (2); AND RV SEAT O-RING (1); Component Document Origin: INDUSTRIAL; Document Source: 79227. 4 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-686-8779 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.