PartsTable TECHNICAL DATA SHEET

NSN 4820-00-121-4768Government record, cited

Valve, Rotary, Selector4820-00-121-4768

NSN 4820-00-121-4768 · NIIN 001214768 · Part number VAL01658

Atlas Copco Holyoke Inc · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 59379

Government record, cited

NSN 4820-00-121-4768 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-121-4768. Manufacturer of record part number: VAL01658.

Also searched as 4820-00-121-4768 · 4820001214768 · NIIN 001214768 · 00-121-4768 · FSC 4820 Valves, Nonpowered · CAGE 59379 · VAL01658 · VAL1658 · 501A2-12-20

Nearby stock numbers ← 4820-00-121-4465 Seat, Valve · 4820-00-121-5872 →

4820-00-121-4768 — Valves, Nonpowered

Features

Valve,rotary,selector — FSC 4820
2 manufacturer part numbers on file
Manufacturer of record: Atlas Copco Holyoke Inc

Identification

NSN: 4820-00-121-4768
NIIN: 001214768
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: VAL01658
Manufacturer: Atlas Copco Holyoke Inc

General Description

The Valve,rotary,selector, cataloged under National Stock Number 4820-00-121-4768, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Atlas Copco Holyoke Inc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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,rotary,selector
FSC / FSG	4820 — Valves, Nonpowered (FSG 48)
Manufacturers	Atlas Copco Holyoke Inc (CAGE 59379); Humphrey Products Co (CAGE 24522)

Technical Specifications

Parameter	Value
NSN	4820-00-121-4768
Primary Part Number	VAL01658
Item Name	Valve,rotary,selector
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Atlas Copco Holyoke Inc
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
VAL01658 PRIMARY	Atlas Copco Holyoke Inc (USA)
501A2-12-20 PRIMARY	Humphrey Products Co (USA)

Reference documents

Reference	Meaning
VAL1658	5/9 Secondary reference U.S. Government activity

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 4820-00-121-4768?

NSN 4820-00-121-4768 is a Valve,rotary,selector, manufactured by Atlas Copco Holyoke Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-00-121-4768?

NSN 4820-00-121-4768 has 2 manufacturer part numbers on file: VAL01658 (Atlas Copco Holyoke Inc), 501A2-12-20 (Humphrey Products Co).

Is NSN 4820-00-121-4768 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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