Valve, Butterfly4820-01-528-3989

NSN 4820-01-528-3989 · NIIN 015283989 · Part number TB-404

Schroeder Industries Llc · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 08832

Government record, cited

NSN 4820-01-528-3989 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-528-3989. Manufacturer of record part number: TB-404.

Also searched as 4820-01-528-3989 · 4820015283989 · NIIN 015283989 · 01-528-3989 · FSC 4820 Valves, Nonpowered · CAGE 08832 · TB-404 · D4232 ITEM-182

Nearby stock numbers ← 4820-01-528-3960 Diaphragm, Actuator Valve, Special · 4820-01-528-3997 Anti-Backflow Valve →

4820-01-528-3989 — Valves, Nonpowered

Features

Valve,butterfly — FSC 4820
Material: IRON CAST BODY
2 manufacturer part numbers on file
Manufacturer of record: Schroeder Industries Llc

Identification

NSN: 4820-01-528-3989
NIIN: 015283989
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: TB-404
Manufacturer: Schroeder Industries Llc

General Description

The Valve,butterfly, cataloged under National Stock Number 4820-01-528-3989, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Schroeder Industries Llc. Government technical data includes 1 specification, 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. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-01-528-3989
Primary Part Number	TB-404
Item Name	Valve,butterfly
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Schroeder Industries Llc
Status	ACTIVE
Material	IRON CAST BODY

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
D4232 ITEM-182	Schroeder Industries Llc (USA)
TB-404 PRIMARY	Schroeder Industries Llc (USA)

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 4820-01-528-3989?

NSN 4820-01-528-3989 is a Valve,butterfly, manufactured by Schroeder Industries Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-528-3989?

NSN 4820-01-528-3989 has 2 manufacturer part numbers on file: D4232 ITEM-182 (Schroeder Industries Llc), TB-404 (Schroeder Industries Llc).

What are the specifications of TB-404?

Key specifications for TB-404: Part Name Assigned by Controlling Agency: 3 INCH, CAST-IRON BODY, SCREW ENDS 150LB OWG LBS; End Item Identification: HYDRAULIC TEST STAND HTB-50E; Material: IRON CAST BODY. 1 specification is documented in the U.S. Government catalog.

Is NSN 4820-01-528-3989 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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