NSN 4820-01-288-9222 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-288-9222. Manufacturer of record part number: 174A .75IPS 100 PSI SET.
Also searched as4820-01-288-9222 ·
4820012889222 ·
NIIN 012889222 ·
01-288-9222 ·
FSC 4820 Valves, Nonpowered · CAGE 79227 · 174A .75IPS 100 PSI SET · 174A .75IPS 100
Nearby stock numbers← 4820-01-288-8590 Valve, Safety Relief, Oxygen Syste
·
4820-01-288-9509 Latch Spring Washer Special →
4820-01-288-9222 — Valves, Nonpowered
Features
Valve,safety Relief — FSC 4820
1 manufacturer part number on file
Manufacturer of record: Watts Regulator Company
Identification
NSN: 4820-01-288-9222
NIIN: 012889222
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 174A .75IPS 100 PSI SET
Manufacturer: Watts Regulator Company
General Description
The Valve,safety Relief, cataloged under National Stock Number 4820-01-288-9222, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Watts Regulator Company. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
C/1Advisory reference — outside the item-of-supply concept
Watts Regulator Company
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 4820-01-288-9222?
NSN 4820-01-288-9222 is a Valve,safety Relief, manufactured by Watts Regulator Company, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-288-9222?
NSN 4820-01-288-9222 has 1 manufacturer part number on file: 174A .75IPS 100 PSI SET (Watts Regulator Company).
What are the specifications of 174A .75IPS 100 PSI SET?
Key specifications for 174A .75IPS 100 PSI SET: Special Features: END ITEM APPLICATION ELECTRIC WATER HEATER. 0 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-288-9222 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.