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NSN 4820-01-690-4331Government record, cited

Parts Kit, Pressure Regulating VA4820-01-690-4331

NSN 4820-01-690-4331 · NIIN 016904331 · Part number 0125122

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

Government record, cited

NSN 4820-01-690-4331 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-690-4331. Manufacturer of record part number: 0125122.

Also searched as 4820-01-690-4331 · 4820016904331 · NIIN 016904331 · 01-690-4331 · FSC 4820 Valves, Nonpowered · CAGE 79227 · 0125122

Nearby stock numbers ← 4820-01-690-4294 Valve, Check · 4820-01-690-4394 Valve, Butterfly →

4820-01-690-4331 — Valves, Nonpowered

Features

Parts Kit,pressure Regulating VA — FSC 4820
Component Quantity: 9
Document Type: PURCHASE DESCRIPTION
Supply Items and Quantities: SEAT, SEAT GASKET, DIAPHRAHM, DISC, DISC SCREW, STRAINER PLUG GASKET, STRAINER SCREEN, BOTTOM PLUG GASKET AND UNION GASKET (FOR UNION MODELS ONLY)
Component Document Origin: INDUSTRIAL
Document Source: 79227
1 manufacturer part number on file
Manufacturer of record: Watts Regulator Company

Identification

NSN: 4820-01-690-4331
NIIN: 016904331
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 0125122
Manufacturer: Watts Regulator Company

General Description

The Parts Kit,pressure Regulating VA, cataloged under National Stock Number 4820-01-690-4331, 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 5 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.

Technical Specifications

Parameter	Value
NSN	4820-01-690-4331
Primary Part Number	0125122
Item Name	Parts Kit,pressure Regulating VA
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Watts Regulator Company
Status	ACTIVE
Component Quantity	9
Document Type	PURCHASE DESCRIPTION
Supply Items and Quantities	SEAT, SEAT GASKET, DIAPHRAHM, DISC, DISC SCREW, STRAINER PLUG GASKET, STRAINER SCREEN, BOTTOM PLUG GASKET AND UNION GASKET (FOR UNION MODELS ONLY)
Component Document Origin	INDUSTRIAL
Document Source	79227

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
0125122 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 4820-01-690-4331?

NSN 4820-01-690-4331 is a Parts Kit,pressure Regulating VA, manufactured by Watts Regulator Company, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-690-4331?

NSN 4820-01-690-4331 has 1 manufacturer part number on file: 0125122 (Watts Regulator Company).

What are the specifications of 0125122?

Key specifications for 0125122: Component Quantity: 9; Document Type: PURCHASE DESCRIPTION; Supply Items and Quantities: SEAT, SEAT GASKET, DIAPHRAHM, DISC, DISC SCREW, STRAINER PLUG GASKET, STRAINER SCREEN, BOTTOM PLUG GASKET AND UNION GASKET (FOR UNION MODELS ONLY); Component Document Origin: INDUSTRIAL. 5 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-690-4331 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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