PartsTable TECHNICAL DATA SHEET

NSN 4820-01-186-0512Government record, cited

Gear Operator, Valve4820-01-186-0512

NSN 4820-01-186-0512 · NIIN 011860512 · Part number AP-821

Hoffman/new Yorker Inc · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 43528

Government record, cited

NSN 4820-01-186-0512 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-186-0512. Manufacturer of record part number: AP-821.

Also searched as 4820-01-186-0512 · 4820011860512 · NIIN 011860512 · 01-186-0512 · FSC 4820 Valves, Nonpowered · CAGE 43528 · AP-821

Nearby stock numbers ← 4820-01-186-0511 Cap Screw, Valve Con · 4820-01-186-0513 →

4820-01-186-0512 — Valves, Nonpowered

Features

Gear Operator,valve — FSC 4820
1 manufacturer part number on file
Manufacturer of record: Hoffman/new Yorker Inc

Identification

NSN: 4820-01-186-0512
NIIN: 011860512
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: AP-821
Manufacturer: Hoffman/new Yorker Inc

General Description

The Gear Operator,valve, cataloged under National Stock Number 4820-01-186-0512, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Hoffman/new Yorker Inc. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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	Gear Operator,valve
FSC / FSG	4820 — Valves, Nonpowered (FSG 48)
Manufacturers	Hoffman/new Yorker Inc (CAGE 43528)

Technical Specifications

Parameter	Value
NSN	4820-01-186-0512
Primary Part Number	AP-821
Item Name	Gear Operator,valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Hoffman/new Yorker 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)

Cross-Reference Index

Part Number	Manufacturer
AP-821 PRIMARY	Hoffman/new Yorker Inc (USA)

Reference documents

Reference	Meaning
AP-821	C/1 Advisory reference — outside the item-of-supply concept Hoffman/new Yorker, Inc.

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 4820-01-186-0512?

NSN 4820-01-186-0512 is a Gear Operator,valve, manufactured by Hoffman/new Yorker Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-186-0512?

NSN 4820-01-186-0512 has 1 manufacturer part number on file: AP-821 (Hoffman/new Yorker Inc).

Is NSN 4820-01-186-0512 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.

PartsTable Design LLC · partstable.com