Valve, Relief, Pressure and Temper4820-01-188-1577

NSN 4820-01-188-1577 · NIIN 011881577 · Part number 52-B-6555-1

Curtiss-Wright Flow Control Service, Llc Dba Engineered Arresting Systems - Esco Div Cw Flow Control Svc Llc Dba · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 21439

Government record, cited

NSN 4820-01-188-1577 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-188-1577. Manufacturer of record part number: 52-B-6555-1.

Also searched as 4820-01-188-1577 · 4820011881577 · NIIN 011881577 · 01-188-1577 · FSC 4820 Valves, Nonpowered · CAGE 21439 · 52-B-6555-1 · RAS-600-S-5-10

Nearby stock numbers ← 4820-01-188-1551 Valve, Check · 4820-01-188-1578 Valve, Relief, Pressure and Temper →

4820-01-188-1577 — Valves, Nonpowered

Features

Valve,relief,pressure and Temper — FSC 4820
2 manufacturer part numbers on file
Manufacturer of record: Curtiss-Wright Flow Control Service, Llc Dba Engineered Arresting Systems - Esco Div Cw Flow Control Svc Llc Dba

Identification

NSN: 4820-01-188-1577
NIIN: 011881577
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 52-B-6555-1
Manufacturer: Curtiss-Wright Flow Control Service, Llc Dba Engineered Arresting Systems - Esco Div Cw Flow Control Svc Llc Dba

General Description

The Valve,relief,pressure and Temper, cataloged under National Stock Number 4820-01-188-1577, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Curtiss-Wright Flow Control Service, Llc Dba Engineered Arresting Systems - Esco Div Cw Flow Control Svc Llc Dba. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Catalog Facts

Item Name	Valve,relief,pressure and Temper
FSC / FSG	4820 — Valves, Nonpowered (FSG 48)
Manufacturers	Curtiss-Wright Flow Control Service, Llc Dba Engineered Arresting Systems - Esco Div Cw Flow Control Svc Llc Dba (CAGE 21439); Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division (CAGE 09990)

Technical Specifications

Parameter	Value
NSN	4820-01-188-1577
Primary Part Number	52-B-6555-1
Item Name	Valve,relief,pressure and Temper
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Curtiss-Wright Flow Control Service, Llc Dba Engineered Arresting Systems - Esco Div Cw Flow Control Svc Llc Dba
Status	ACTIVE

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)

Cross-Reference Index

Part Number	Manufacturer
52-B-6555-1 PRIMARY	Curtiss-Wright Flow Control Service, Llc Dba Engineered Arresting Systems - Esco Div Cw Flow Control Svc Llc Dba (USA)
RAS-600-S-5-10 PRIMARY	Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division (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 4820-01-188-1577?

NSN 4820-01-188-1577 is a Valve,relief,pressure and Temper, manufactured by Curtiss-Wright Flow Control Service, Llc Dba Engineered Arresting Systems - Esco Div Cw Flow Control Svc Llc Dba, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-188-1577?

NSN 4820-01-188-1577 has 2 manufacturer part numbers on file: 52-B-6555-1 (Curtiss-Wright Flow Control Service, Llc Dba Engineered Arresting Systems - Esco Div Cw Flow Control Svc Llc Dba), RAS-600-S-5-10 (Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division).

Is NSN 4820-01-188-1577 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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