Regulator, Unloading4820-01-048-7220

NSN 4820-01-048-7220 · NIIN 010487220 · Part number 38E28-3A

Honeywell Intl Inc Defense Avionics Systems · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 55972

Government record, cited

NSN 4820-01-048-7220 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-048-7220. Manufacturer of record part number: 38E28-3A.

Also searched as 4820-01-048-7220 · 4820010487220 · NIIN 010487220 · 01-048-7220 · FSC 4820 Valves, Nonpowered · CAGE 55972 · 38E28-3A

Nearby stock numbers ← 4820-01-048-7096 · 4820-01-048-7285 Stem, Valve →

4820-01-048-7220 — Valves, Nonpowered

Features

Regulator,unloading — FSC 4820
1 manufacturer part number on file
Manufacturer of record: Honeywell Intl Inc Defense Avionics Systems

Identification

NSN: 4820-01-048-7220
NIIN: 010487220
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 38E28-3A
Manufacturer: Honeywell Intl Inc Defense Avionics Systems

General Description

The Regulator,unloading, cataloged under National Stock Number 4820-01-048-7220, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Honeywell Intl Inc Defense Avionics Systems. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Catalog Facts

Item Name	Regulator,unloading
FSC / FSG	4820 — Valves, Nonpowered (FSG 48)
Manufacturers	Honeywell Intl Inc Defense Avionics Systems (CAGE 55972)

Technical Specifications

Parameter	Value
NSN	4820-01-048-7220
Primary Part Number	38E28-3A
Item Name	Regulator,unloading
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Honeywell Intl Inc Defense Avionics Systems
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
38E28-3A PRIMARY	Honeywell Intl Inc Defense Avionics Systems (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 4820-01-048-7220?

NSN 4820-01-048-7220 is a Regulator,unloading, manufactured by Honeywell Intl Inc Defense Avionics Systems, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-048-7220?

NSN 4820-01-048-7220 has 1 manufacturer part number on file: 38E28-3A (Honeywell Intl Inc Defense Avionics Systems).

Is NSN 4820-01-048-7220 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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