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NSN 4820-01-666-9022Government record, cited

Head and Disk, Safety, Pressure Re4820-01-666-9022

NSN 4820-01-666-9022 · NIIN 016669022 · Part number 5526-235-CE

Henry Technologies, Inc. · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 7NJR2

Government record, cited

NSN 4820-01-666-9022 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-666-9022. Manufacturer of record part number: 5526-235-CE.

Also searched as 4820-01-666-9022 · 4820016669022 · NIIN 016669022 · 01-666-9022 · FSC 4820 Valves, Nonpowered · CAGE 7NJR2 · 5526-235-CE · N30070251

Nearby stock numbers ← 4820-01-666-8790 Ball, Check · 4820-01-666-9117 Ball, Check →

4820-01-666-9022 — Valves, Nonpowered

Features

Head and Disk,safety,pressure Re — FSC 4820
Burst Temperature: 16.2 CELSIUS DEGC
Disk Type: REVERSE BUCKLING
3 manufacturer part numbers on file
Manufacturer of record: Henry Technologies, Inc.

Identification

NSN: 4820-01-666-9022
NIIN: 016669022
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 5526-235-CE
Manufacturer: Henry Technologies, Inc.

General Description

The Head and Disk,safety,pressure Re, cataloged under National Stock Number 4820-01-666-9022, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Henry Technologies, Inc.. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 3 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	4820-01-666-9022
Primary Part Number	5526-235-CE
Item Name	Head and Disk,safety,pressure Re
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Henry Technologies, Inc.
Status	ACTIVE
Burst Temperature	16.2 CELSIUS DEGC
Disk Type	REVERSE BUCKLING

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
5526-235-CE PRIMARY	Henry Technologies, Inc. (USA)
N30070251	J & E Hall Ltd (GBR)
5526-235-CE	Henry Technologies Limited (GBR)

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 4820-01-666-9022?

NSN 4820-01-666-9022 is a Head and Disk,safety,pressure Re, manufactured by Henry Technologies, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-666-9022?

NSN 4820-01-666-9022 has 3 manufacturer part numbers on file: 5526-235-CE (Henry Technologies, Inc.), N30070251 (J & E Hall Ltd), 5526-235-CE (Henry Technologies Limited).

What are the specifications of 5526-235-CE?

Key specifications for 5526-235-CE: Burst Temperature: 16.2 CELSIUS DEGC; Disk Type: REVERSE BUCKLING; Special Features: CONNECTION SIZE 1/2 INCH MNPT, 1/2 INCH FNPT;SET PRESSURE 235 PSIG; IN; Part Name Assigned by Controlling Agency: RUPTURE DISC VALVE. 2 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-666-9022 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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