Valve Flapper, Pump4320-01-475-0840

NSN 4320-01-475-0840 · NIIN 014750840 · Part number S90427

Emerson Automation Solutions Final Control Us Lp Div Navy Product Team · FSC 4320 — Power and Hand Pumps · FSG 43 — Pumps and Compressors · CAGE 15187

Government record, cited

NSN 4320-01-475-0840 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-475-0840. Manufacturer of record part number: S90427.

Also searched as 4320-01-475-0840 · 4320014750840 · NIIN 014750840 · 01-475-0840 · FSC 4320 Power and Hand Pumps · CAGE 15187 · S90427 · SAF-90298 · DS-B-90344-ITEM 5

Nearby stock numbers ← 4320-01-475-0593 Pump Unit, Centrifugal · 4320-01-475-0844 Impeller, Pump, Centrifugal →

Features

Valve Flapper,pump — FSC 4320
3 manufacturer part numbers on file
Manufacturer of record: Emerson Automation Solutions Final Control Us Lp Div Navy Product Team

Identification

NSN: 4320-01-475-0840
NIIN: 014750840
FSC: 4320 — Power and Hand Pumps
FSG: 43 — Pumps and Compressors
Primary part number: S90427
Manufacturer: Emerson Automation Solutions Final Control Us Lp Div Navy Product Team

General Description

The Valve Flapper,pump, cataloged under National Stock Number 4320-01-475-0840, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Emerson Automation Solutions Final Control Us Lp Div Navy Product Team. The record lists 3 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	4320-01-475-0840
Primary Part Number	S90427
Item Name	Valve Flapper,pump
FSC / FSG	4320 / 43 — Power and Hand Pumps
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)
Criticality Code	X

Cross-Reference Index

Part Number	Manufacturer
S90427 PRIMARY	Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
SAF-90298	Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
DS-B-90344-ITEM 5	Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)

No interchangeability data on file.

Other items in FSC 4320 — Power and Hand Pumps

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

4320-00-001-1633

4320-00-001-1633 · Item name not on file

4320-00-001-2628

RETAINER AND PIN

4320-00-001-2629

HOUSING AND PIN

4320-00-001-2630

PUMP,CENTRIFUGAL

4320-00-001-2631

4320-00-001-2631 · Item name not on file

4320-00-001-2632

4320-00-001-2632 · Item name not on file

4320-00-001-3377

4320-00-001-3377 · Item name not on file

4320-00-001-3384

4320-00-001-3384 · Item name not on file

Frequently Asked Questions

What is NSN 4320-01-475-0840?

NSN 4320-01-475-0840 is a Valve Flapper,pump, manufactured by Emerson Automation Solutions Final Control Us Lp Div Navy Product Team, classified under FSC 4320, Power and Hand Pumps. Status: active.

What part numbers are listed for NSN 4320-01-475-0840?

NSN 4320-01-475-0840 has 3 manufacturer part numbers on file: S90427 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), SAF-90298 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), DS-B-90344-ITEM 5 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team).

What are the specifications of S90427?

Key specifications for S90427: End Item Identification: 2 1/2 X 2 1/2 SWING CHECK VALVE. 0 specifications are documented in the U.S. Government catalog.

Is NSN 4320-01-475-0840 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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