PartsTable TECHNICAL DATA SHEET

NSN 4820-01-197-8937Government record, cited

Valve, Globe4820-01-197-8937

NSN 4820-01-197-8937 · NIIN 011978937 · Part number 20335-H

Atwood & Morrill Co., Inc. Dba Weir Valves and Controls Usa · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 04537

Government record, cited

NSN 4820-01-197-8937 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-197-8937. Manufacturer of record part number: 20335-H.

Also searched as 4820-01-197-8937 · 4820011978937 · NIIN 011978937 · 01-197-8937 · FSC 4820 Valves, Nonpowered · CAGE 04537 · 20335-H

Nearby stock numbers ← 4820-01-197-8936 Valve, Globe · 4820-01-197-8938 →

4820-01-197-8937 — Valves, Nonpowered

Features

Valve,globe — FSC 4820
Flow Control Device: DISK
Valve Size: 2.000 INCHES IN
Bonnet Type: OUTSIDE SCREW-YOKE
Bonnet Attachment Method: BOLTED
1 manufacturer part number on file
Manufacturer of record: Atwood & Morrill Co., Inc. Dba Weir Valves and Controls Usa

Identification

NSN: 4820-01-197-8937
NIIN: 011978937
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 20335-H
Manufacturer: Atwood & Morrill Co., Inc. Dba Weir Valves and Controls Usa

General Description

The Valve,globe, cataloged under National Stock Number 4820-01-197-8937, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Atwood & Morrill Co., Inc. Dba Weir Valves and Controls Usa. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 7 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-01-197-8937
Primary Part Number	20335-H
Item Name	Valve,globe
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Atwood & Morrill Co., Inc. Dba Weir Valves and Controls Usa
Status	ACTIVE
Flow Control Device	DISK
Valve Size	2.000 INCHES IN
Bonnet Type	OUTSIDE SCREW-YOKE
Bonnet Attachment Method	BOLTED

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

⇄ Related Items 7

Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.

4820-01-197-898420335-H PIECE 33 POSSIBLE MATCH

BLOCK,TRIGGER,VALVE

Possible match (shared part number)Atwood & Morrill Co., Inc. Dba Weir Valves and Controls Usa

4820-01-197-899332447-020-3294-031 POSSIBLE MATCH

STEM,FLUID VALVE

Possible match (shared part number)Atwood & Morrill Co., Inc. Dba Weir Valves and Controls Usa

4820-01-197-902222036-A POSSIBLE MATCH

DISK,VALVE

Possible match (shared part number)Atwood & Morrill Co., Inc. Dba Weir Valves and Controls Usa

3040-01-198-302820335-H PIECE 6 POSSIBLE MATCH

PISTON,LINEAR ACTUATING CYLINDER

Possible match (shared part number)Atwood & Morrill Co., Inc. Dba Weir Valves and Controls Usa

3040-01-198-307420335-H PIECE 5 POSSIBLE MATCH

CYLINDER,ACTUATING,LINEAR

Possible match (shared part number)Atwood & Morrill Co., Inc. Dba Weir Valves and Controls Usa

3040-01-198-307620335-H PIECE 2 POSSIBLE MATCH

CYLINDER ASSEMBLY,ACTUATING,LINE

Possible match (shared part number)Atwood & Morrill Co., Inc. Dba Weir Valves and Controls Usa

4820-01-199-876120335-H PIECE 21 POSSIBLE MATCH

RING,BODY,VALVE

Possible match (shared part number)Atwood & Morrill Co., Inc. Dba Weir Valves and Controls Usa

Cross-Reference Index

Part Number	Manufacturer
20335-H PRIMARY	Atwood & Morrill Co., Inc. Dba Weir Valves and Controls Usa (USA)

Related Parts

4820-01-197-8984POSSIBLE MATCH

BLOCK,TRIGGER,VALVE

20335-H PIECE 33

4820-01-197-8993POSSIBLE MATCH

STEM,FLUID VALVE

32447-020-3294-031

4820-01-197-9022POSSIBLE MATCH

DISK,VALVE

22036-A

3040-01-198-3028POSSIBLE MATCH

PISTON,LINEAR ACTUATING CYLINDER

20335-H PIECE 6

3040-01-198-3074POSSIBLE MATCH

CYLINDER,ACTUATING,LINEAR

20335-H PIECE 5

3040-01-198-3076POSSIBLE MATCH

CYLINDER ASSEMBLY,ACTUATING,LINE

20335-H PIECE 2

4820-01-199-8761POSSIBLE MATCH

RING,BODY,VALVE

20335-H PIECE 21

Frequently Asked Questions

What is NSN 4820-01-197-8937?

NSN 4820-01-197-8937 is a Valve,globe, manufactured by Atwood & Morrill Co., Inc. Dba Weir Valves and Controls Usa, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-197-8937?

NSN 4820-01-197-8937 has 1 manufacturer part number on file: 20335-H (Atwood & Morrill Co., Inc. Dba Weir Valves and Controls Usa).

What NSN replaces 4820-01-197-8937?

7 possible matches (shared part number, not a government interchangeability claim): 4820-01-197-8984, 4820-01-197-8993, 4820-01-197-9022. Verify interchangeability with system specifications before substitution.

What are the specifications of 20335-H?

Key specifications for 20335-H: Flow Control Device: DISK; Valve Size: 2.000 INCHES IN; Bonnet Type: OUTSIDE SCREW-YOKE; Bonnet Attachment Method: BOLTED. 4 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-197-8937 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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