PartsTable TECHNICAL DATA SHEET

NSN 4820-01-335-3531Government record, cited

Valve Assembly4820-01-335-3531

NSN 4820-01-335-3531 · NIIN 013353531 · Part number 02-8257-840 PART 02-8257-841

Anderson Greenwood Lp Dba Anderson Greenwood Crosby · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 01343

Government record, cited

NSN 4820-01-335-3531 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-335-3531. Manufacturer of record part number: 02-8257-840 PART 02-8257-841.

Also searched as 4820-01-335-3531 · 4820013353531 · NIIN 013353531 · 01-335-3531 · FSC 4820 Valves, Nonpowered · CAGE 01343 · 02-8257-840 PART 02-8257-841 · 02-8257-841 · 02-8257-840

Nearby stock numbers ← 4820-01-335-3530 Valve Assembly · 4820-01-335-4243 Cap Assembly, Valve →

4820-01-335-3531 — Valves, Nonpowered

Features

Valve Assembly — FSC 4820
2 manufacturer part numbers on file
Manufacturer of record: Anderson Greenwood Lp Dba Anderson Greenwood Crosby

Identification

NSN: 4820-01-335-3531
NIIN: 013353531
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 02-8257-840 PART 02-8257-841
Manufacturer: Anderson Greenwood Lp Dba Anderson Greenwood Crosby

General Description

The Valve Assembly, cataloged under National Stock Number 4820-01-335-3531, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Anderson Greenwood Lp Dba Anderson Greenwood Crosby. The record lists 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 Assembly
FSC / FSG	4820 — Valves, Nonpowered (FSG 48)
Manufacturers	Anderson Greenwood Lp Dba Anderson Greenwood Crosby (CAGE 01343)

Technical Specifications

Parameter	Value
NSN	4820-01-335-3531
Primary Part Number	02-8257-840 PART 02-8257-841
Item Name	Valve Assembly
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Anderson Greenwood Lp Dba Anderson Greenwood Crosby
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
02-8257-841	Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
02-8257-840 PART 02-8257-841 PRIMARY	Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)

Reference documents

Reference	Meaning
02-8257-840	D/9 Drawing number reference only Anderson Greenwood Lp Dba Anderson Greenwood Crosby

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 4820-01-335-3531?

NSN 4820-01-335-3531 is a Valve Assembly, manufactured by Anderson Greenwood Lp Dba Anderson Greenwood Crosby, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-335-3531?

NSN 4820-01-335-3531 has 2 manufacturer part numbers on file: 02-8257-841 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 02-8257-840 PART 02-8257-841 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby).

Is NSN 4820-01-335-3531 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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