Parts Kit, Safety Relief Valve4820-01-445-2371

NSN 4820-01-445-2371 · NIIN 014452371 · Part number 887297

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

Government record, cited

NSN 4820-01-445-2371 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-445-2371. Manufacturer of record part number: 887297.

Also searched as 4820-01-445-2371 · 4820014452371 · NIIN 014452371 · 01-445-2371 · FSC 4820 Valves, Nonpowered · CAGE 79227 · 887297 · RK 009 RT 1/2

Nearby stock numbers ← 4820-01-445-2370 Parts Kit, Safety Relief Valve · 4820-01-445-2372 Parts Kit, Safety Relief Valve →

4820-01-445-2371 — Valves, Nonpowered

Features

Parts Kit,safety Relief Valve — FSC 4820
Supply Items and Quantities: DIAPHRAGM 1; DISC 2; DISC ASSEMBLY 2; COVER O-RING 1; SEAT O-RING 2; RV O-RING 1
2 manufacturer part numbers on file
Manufacturer of record: Watts Regulator Company

Identification

NSN: 4820-01-445-2371
NIIN: 014452371
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 887297
Manufacturer: Watts Regulator Company

General Description

The Parts Kit,safety Relief Valve, cataloged under National Stock Number 4820-01-445-2371, 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 1 specification, 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	4820-01-445-2371
Primary Part Number	887297
Item Name	Parts Kit,safety Relief Valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Watts Regulator Company
Status	ACTIVE
Supply Items and Quantities	DIAPHRAGM 1; DISC 2; DISC ASSEMBLY 2; COVER O-RING 1; SEAT O-RING 2; RV O-RING 1

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
887297 PRIMARY	Watts Regulator Company (USA)
RK 009 RT 1/2	Watts Regulator Company (USA)

Frequently Asked Questions

What is NSN 4820-01-445-2371?

NSN 4820-01-445-2371 is a Parts Kit,safety Relief Valve, manufactured by Watts Regulator Company, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-445-2371?

NSN 4820-01-445-2371 has 2 manufacturer part numbers on file: 887297 (Watts Regulator Company), RK 009 RT 1/2 (Watts Regulator Company).

What are the specifications of 887297?

Key specifications for 887297: Supply Items and Quantities: DIAPHRAGM 1; DISC 2; DISC ASSEMBLY 2; COVER O-RING 1; SEAT O-RING 2; RV O-RING 1; End Item Identification: SPRUANCE CLASS DD (963). 1 specification is documented in the U.S. Government catalog.

Is NSN 4820-01-445-2371 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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