Parts Kit, Stop-Check Valve4820-01-616-4339

NSN 4820-01-616-4339 · NIIN 016164339 · Part number 0887301 RK009M2CK2 1 1/4"

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

Government record, cited

NSN 4820-01-616-4339 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-616-4339. Manufacturer of record part number: 0887301 RK009M2CK2 1 1/4".

Also searched as 4820-01-616-4339 · 4820016164339 · NIIN 016164339 · 01-616-4339 · FSC 4820 Valves, Nonpowered · CAGE 79227 · 0887301 RK009M2CK2 1 1/4"

Nearby stock numbers ← 4820-01-616-4335 Parts Kit, Safety Relief Valve · 4820-01-616-4342 Parts Kit, Stop-Check Valve →

4820-01-616-4339 — Valves, Nonpowered

Features

Parts Kit,stop-Check Valve — FSC 4820
Component Quantity: 3
Supply Items and Quantities: 2ND CHECK ASSEMBLY, COVER O-RING, SENSING PASSAGE O-RING
2 manufacturer part numbers on file
Manufacturer of record: Watts Regulator Company

Identification

NSN: 4820-01-616-4339
NIIN: 016164339
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 0887301 RK009M2CK2 1 1/4"
Manufacturer: Watts Regulator Company

General Description

The Parts Kit,stop-Check Valve, cataloged under National Stock Number 4820-01-616-4339, 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 2 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	4820-01-616-4339
Primary Part Number	0887301 RK009M2CK2 1 1/4"
Item Name	Parts Kit,stop-Check Valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Watts Regulator Company
Status	ACTIVE
Component Quantity	3
Supply Items and Quantities	2ND CHECK ASSEMBLY, COVER O-RING, SENSING PASSAGE O-RING

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
0887301 RK009M2CK2 1 1/4"	Betz, William Jr., Inc. Dba Betz Plumbing & Heating Supplies (USA)
0887301 RK009M2CK2 1 1/4" PRIMARY	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 4820-01-616-4339?

NSN 4820-01-616-4339 is a Parts Kit,stop-Check Valve, manufactured by Watts Regulator Company, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-616-4339?

NSN 4820-01-616-4339 has 2 manufacturer part numbers on file: 0887301 RK009M2CK2 1 1/4" (Betz, William Jr., Inc. Dba Betz Plumbing & Heating Supplies), 0887301 RK009M2CK2 1 1/4" (Watts Regulator Company).

What are the specifications of 0887301 RK009M2CK2 1 1/4"?

Key specifications for 0887301 RK009M2CK2 1 1/4": Component Quantity: 3; Supply Items and Quantities: 2ND CHECK ASSEMBLY, COVER O-RING, SENSING PASSAGE O-RING; Part Name Assigned by Controlling Agency: SECOND CHECK KIT. 2 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-616-4339 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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