Parts Kit, Valve4820-01-566-9916

NSN 4820-01-566-9916 · NIIN 015669916 · Part number 0886999

Watts Regulator Company · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 79227

Government record, cited

NSN 4820-01-566-9916 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-566-9916. Manufacturer of record part number: 0886999.

Also searched as 4820-01-566-9916 · 4820015669916 · NIIN 015669916 · 01-566-9916 · FSC 4820 Valves, Nonpowered · CAGE 79227 · 0886999 · RK 009M2 RT 3/4"

Nearby stock numbers ← 4820-01-566-9885 Valve Assembly · 4820-01-567-0026 Parts Kit, Check Valve →

4820-01-566-9916 — Valves, Nonpowered

Features

Parts Kit,valve — FSC 4820
End Item Source: 79227
Accessory Identifying Number: 0886999 PART NO.
Supply Items and Quantities: 1 DIAPHRAGM, 2 DISC ASSEMBLIES, 2 STEM O-RINGS, 1 COVER O-RING, 2 SEAT O-RINGS, 1 RELIEF VALVE O-RING
End Item Name: VALVE ASSEMBLY
Accessory Controlling Agency: 79227
Accessory Component Quantity: 9
2 manufacturer part numbers on file

Identification

NSN: 4820-01-566-9916
NIIN: 015669916
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 0886999
Manufacturer: Watts Regulator Company

General Description

The Parts Kit,valve, cataloged under National Stock Number 4820-01-566-9916, 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 6 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	4820-01-566-9916
Primary Part Number	0886999
Item Name	Parts Kit,valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Watts Regulator Company
Status	ACTIVE
End Item Source	79227
Accessory Identifying Number	0886999 PART NO.
Supply Items and Quantities	1 DIAPHRAGM, 2 DISC ASSEMBLIES, 2 STEM O-RINGS, 1 COVER O-RING, 2 SEAT O-RINGS, 1 RELIEF VALVE O-RING
End Item Name	VALVE ASSEMBLY
Accessory Controlling Agency	79227
Accessory Component Quantity	9

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)
Criticality Code	X

Cross-Reference Index

Part Number	Manufacturer
0886999 PRIMARY	Watts Regulator Company (USA)
RK 009M2 RT 3/4"	Watts Regulator Company (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 4820-01-566-9916?

NSN 4820-01-566-9916 is a Parts Kit,valve, manufactured by Watts Regulator Company, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-566-9916?

NSN 4820-01-566-9916 has 2 manufacturer part numbers on file: 0886999 (Watts Regulator Company), RK 009M2 RT 3/4" (Watts Regulator Company).

What are the specifications of 0886999?

Key specifications for 0886999: End Item Source: 79227; Accessory Identifying Number: 0886999 PART NO.; Supply Items and Quantities: 1 DIAPHRAGM, 2 DISC ASSEMBLIES, 2 STEM O-RINGS, 1 COVER O-RING, 2 SEAT O-RINGS, 1 RELIEF VALVE O-RING; End Item Name: VALVE ASSEMBLY. 6 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-566-9916 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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