Parts Kit, Safety Relief Valve4820-01-520-6823

NSN 4820-01-520-6823 · NIIN 015206823 · Part number 0888524

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

Government record, cited

NSN 4820-01-520-6823 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-520-6823. Manufacturer of record part number: 0888524.

Also searched as 4820-01-520-6823 · 4820015206823 · NIIN 015206823 · 01-520-6823 · FSC 4820 Valves, Nonpowered · CAGE 79227 · 0888524 · 3/4RK-009M3-VT/0888524

Nearby stock numbers ← 4820-01-520-6802 Valve, Safety Relief · 4820-01-520-7106 Valve, Regulating, Fluid Pressure →

4820-01-520-6823 — Valves, Nonpowered

Features

Parts Kit,safety Relief Valve — FSC 4820
Document Type: CATALOG SHEET
End Item Source: 79227
Component Document Page Number: 38, 39
Document Identification: SERIES 009
End Item Name: VALVE BACKFLOW PRVNT
Document Source: 79227
2 manufacturer part numbers on file

Identification

NSN: 4820-01-520-6823
NIIN: 015206823
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 0888524
Manufacturer: Watts Regulator Company

General Description

The Parts Kit,safety Relief Valve, cataloged under National Stock Number 4820-01-520-6823, 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	4820-01-520-6823
Primary Part Number	0888524
Item Name	Parts Kit,safety Relief Valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Watts Regulator Company
Status	ACTIVE
Document Type	CATALOG SHEET
End Item Source	79227
Component Document Page Number	38, 39
Document Identification	SERIES 009
End Item Name	VALVE BACKFLOW PRVNT
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
0888524 PRIMARY	Watts Regulator Company (USA)
3/4RK-009M3-VT/0888524	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 4820-01-520-6823?

NSN 4820-01-520-6823 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 4820-01-520-6823?

NSN 4820-01-520-6823 has 2 manufacturer part numbers on file: 0888524 (Watts Regulator Company), 3/4RK-009M3-VT/0888524 (Watts Regulator Company).

What are the specifications of 0888524?

Key specifications for 0888524: Document Type: CATALOG SHEET; End Item Source: 79227; Component Document Page Number: 38, 39; Document Identification: SERIES 009. 6 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-520-6823 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.

PartsTable Design LLC · partstable.com