PartsTable TECHNICAL DATA SHEET

NSN 4820-01-271-7858Government record, cited

Bonnet and Bearing4820-01-271-7858

NSN 4820-01-271-7858 · NIIN 012717858 · Part number S20985

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

Government record, cited

NSN 4820-01-271-7858 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-271-7858. Manufacturer of record part number: S20985.

Also searched as 4820-01-271-7858 · 4820012717858 · NIIN 012717858 · 01-271-7858 · FSC 4820 Valves, Nonpowered · CAGE 15187 · S20985 · A34153 PIECE 38,39 · SA20985

Nearby stock numbers ← 4820-01-271-7696 Gear Operator, Valve · 4820-01-271-7865 Valve, Counter Balan →

4820-01-271-7858 — Valves, Nonpowered

Features

Bonnet and Bearing — FSC 4820
2 manufacturer part numbers on file
Manufacturer of record: Emerson Automation Solutions Final Control Us Lp Div Navy Product Team

Identification

NSN: 4820-01-271-7858
NIIN: 012717858
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: S20985
Manufacturer: Emerson Automation Solutions Final Control Us Lp Div Navy Product Team

General Description

The Bonnet and Bearing, cataloged under National Stock Number 4820-01-271-7858, 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. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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	Bonnet and Bearing
FSC / FSG	4820 — Valves, Nonpowered (FSG 48)
Manufacturers	Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (CAGE 15187)

Technical Specifications

Parameter	Value
NSN	4820-01-271-7858
Primary Part Number	S20985
Item Name	Bonnet and Bearing
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
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
A34153 PIECE 38,39	Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
S20985 PRIMARY	Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)

Reference documents

Reference	Meaning
SA20985	5/9 Secondary reference Emerson Automation Solutions Final Control Us Lp Div Navy Product Team

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 4820-01-271-7858?

NSN 4820-01-271-7858 is a Bonnet and Bearing, 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 4820-01-271-7858?

NSN 4820-01-271-7858 has 2 manufacturer part numbers on file: A34153 PIECE 38,39 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), S20985 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team).

Is NSN 4820-01-271-7858 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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