PartsTable TECHNICAL DATA SHEET

NSN 4820-01-066-9928Government record, cited

Seat, Valve4820-01-066-9928

NSN 4820-01-066-9928 · NIIN 010669928 · Part number A7445-002-127

Emerson Automation Solutions Final Control Us Lp Div Navy Product Team · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 15187

Government record, cited

NSN 4820-01-066-9928 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-066-9928. Manufacturer of record part number: A7445-002-127.

Also searched as 4820-01-066-9928 · 4820010669928 · NIIN 010669928 · 01-066-9928 · FSC 4820 Valves, Nonpowered · CAGE 15187 · A7445-002-127 · 20247PC5 · 20247PC5

Nearby stock numbers ← 4820-01-066-9857 · 4820-01-066-9997 →

4820-01-066-9928 — Valves, Nonpowered

Features

Seat,valve — FSC 4820
Thread Length: 2.000 INCHES NOMINAL SINGLE THREADED PORTION IN
Style Designator: PLAIN THREADED
Body Inside Diameter: 1.500 INCHES NOMINAL IN
Nominal Thread Size: 2.125 INCHES SINGLE THREADED PORTION IN
Thread Class: 2A SINGLE THREADED PORTION A
Thread Quantity Per Inch: 14 SINGLE THREADED PORTION
Material: NICKEL ALLOY OVERALL

Identification

NSN: 4820-01-066-9928
NIIN: 010669928
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: A7445-002-127
Manufacturer: Emerson Automation Solutions Final Control Us Lp Div Navy Product Team

General Description

The Seat,valve, cataloged under National Stock Number 4820-01-066-9928, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Emerson Automation Solutions Final Control Us Lp Div Navy Product Team. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.

Technical Specifications

Parameter	Value
NSN	4820-01-066-9928
Primary Part Number	A7445-002-127
Item Name	Seat,valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
Status	ACTIVE
Thread Length	2.000 INCHES NOMINAL SINGLE THREADED PORTION IN
Style Designator	PLAIN THREADED
Body Inside Diameter	1.500 INCHES NOMINAL IN
Nominal Thread Size	2.125 INCHES SINGLE THREADED PORTION IN
Thread Class	2A SINGLE THREADED PORTION A
Thread Quantity Per Inch	14 SINGLE THREADED PORTION
Material	NICKEL ALLOY OVERALL
Seat Angle in Deg	45.000 NOMINAL
Thread Series Designator	UNS SINGLE THREADED PORTION
Seating Surface Shape	ANGULAR

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
A7445-002-127 PRIMARY	Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
20247PC5	Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)

Reference documents

Reference	Meaning
A7445-002-127	5/9 Secondary reference Anderson Greenwood Lp Dba Anderson Greenwood Crosby
20247PC5	5/9 Secondary reference 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 4820-01-066-9928?

NSN 4820-01-066-9928 is a Seat,valve, manufactured by Emerson Automation Solutions Final Control Us Lp Div Navy Product Team, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-066-9928?

NSN 4820-01-066-9928 has 2 manufacturer part numbers on file: A7445-002-127 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 20247PC5 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team).

What are the specifications of A7445-002-127?

Key specifications for A7445-002-127: Overall Height: 2.000 INCHES NOMINAL IN; Thread Length: 2.000 INCHES NOMINAL SINGLE THREADED PORTION IN; Style Designator: PLAIN THREADED; Body Inside Diameter: 1.500 INCHES NOMINAL IN. 10 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-066-9928 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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