PartsTable TECHNICAL DATA SHEET

NSN 4820-01-305-5646Government record, cited

Valve, Safety Relief4820-01-305-5646

NSN 4820-01-305-5646 · NIIN 013055646 · Part number HC9856-3A50

Pall Aeropower Corporation · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 1EP30

Government record, cited

NSN 4820-01-305-5646 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-305-5646. Manufacturer of record part number: HC9856-3A50.

Also searched as 4820-01-305-5646 · 4820013055646 · NIIN 013055646 · 01-305-5646 · FSC 4820 Valves, Nonpowered · CAGE 1EP30 · HC9856-3A50 · 9650D1303292 ITEM 25

Nearby stock numbers ← 4820-01-305-5645 Valve, Safety Relief · 4820-01-305-5674 Valve, Ball →

4820-01-305-5646 — Valves, Nonpowered

Features

Valve,safety Relief — FSC 4820
1 manufacturer part number on file
Manufacturer of record: Pall Aeropower Corporation

Identification

NSN: 4820-01-305-5646
NIIN: 013055646
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: HC9856-3A50
Manufacturer: Pall Aeropower Corporation

General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-01-305-5646, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Pall Aeropower Corporation. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Catalog Facts

Item Name	Valve,safety Relief
FSC / FSG	4820 — Valves, Nonpowered (FSG 48)
Manufacturers	Pall Aeropower Corporation (CAGE 1EP30)

Technical Specifications

Parameter	Value
NSN	4820-01-305-5646
Primary Part Number	HC9856-3A50
Item Name	Valve,safety Relief
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Pall Aeropower Corporation
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
HC9856-3A50 PRIMARY	Pall Aeropower Corporation (USA)

Reference documents

Reference	Meaning
9650D1303292 ITEM 25	5/9 Secondary reference Pall Corp Div Pall Corporation
HC9856-3A50	5/9 Secondary reference Pall Corp Div Pall Corporation

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 4820-01-305-5646?

NSN 4820-01-305-5646 is a Valve,safety Relief, manufactured by Pall Aeropower Corporation, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-305-5646?

NSN 4820-01-305-5646 has 1 manufacturer part number on file: HC9856-3A50 (Pall Aeropower Corporation).

Is NSN 4820-01-305-5646 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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