PartsTable TECHNICAL DATA SHEET

NSN 4820-01-588-1280Government record, cited

Valve, Relief, Pressure and Temper4820-01-588-1280

NSN 4820-01-588-1280 · NIIN 015881280 · Part number AR155H-250

Superior Valve Co · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 58553

Government record, cited

NSN 4820-01-588-1280 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-588-1280. Manufacturer of record part number: AR155H-250.

Also searched as 4820-01-588-1280 · 4820015881280 · NIIN 015881280 · 01-588-1280 · FSC 4820 Valves, Nonpowered · CAGE 58553 · AR155H-250 · 4112.000 IT 6 · 3220@250 PSIG · 3220-250

Nearby stock numbers ← 4820-01-588-1086 Valve, Flow Control · 4820-01-588-1290 Valve, Relief, Pressure and Temper →

4820-01-588-1280 — Valves, Nonpowered

Features

Valve,relief,pressure and Temper — FSC 4820
3 manufacturer part numbers on file
Manufacturer of record: Superior Valve Co

Identification

NSN: 4820-01-588-1280
NIIN: 015881280
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: AR155H-250
Manufacturer: Superior Valve Co

General Description

The Valve,relief,pressure and Temper, cataloged under National Stock Number 4820-01-588-1280, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Superior Valve Co. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.

Catalog Facts

Item Name	Valve,relief,pressure and Temper
FSC / FSG	4820 — Valves, Nonpowered (FSG 48)
Manufacturers	Bronswerk Marine Inc (CAGE 38728); Superior Valve Co (CAGE 58553)

Technical Specifications

Parameter	Value
NSN	4820-01-588-1280
Primary Part Number	AR155H-250
Item Name	Valve,relief,pressure and Temper
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Superior Valve Co
Status	ACTIVE

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
4112.000 IT 6	Bronswerk Marine Inc (CAN)
3220@250 PSIG	Superior Valve Co (USA)
AR155H-250 PRIMARY	Superior Valve Co (USA)

Reference documents

Reference	Meaning
3220-250	5/9 Secondary reference Superior Valve Co

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 4820-01-588-1280?

NSN 4820-01-588-1280 is a Valve,relief,pressure and Temper, manufactured by Superior Valve Co, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-588-1280?

NSN 4820-01-588-1280 has 3 manufacturer part numbers on file: 4112.000 IT 6 (Bronswerk Marine Inc), 3220@250 PSIG (Superior Valve Co), AR155H-250 (Superior Valve Co).

Is NSN 4820-01-588-1280 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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