Valve, Check, Oxygen System4820-01-440-2014

NSN 4820-01-440-2014 · NIIN 014402014 · Part number 1.250IN SW851

Flowserve Inc · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 63220

Government record, cited

NSN 4820-01-440-2014 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-440-2014. Manufacturer of record part number: 1.250IN SW851.

Also searched as 4820-01-440-2014 · 4820014402014 · NIIN 014402014 · 01-440-2014 · FSC 4820 Valves, Nonpowered · CAGE 63220 · 1.250IN SW851 · 1-1/4IN SW851 · SW851 MOD 1.25IN · SW851 MOD 1-1/4IN

Nearby stock numbers ← 4820-01-440-1999 Valve, Gate · 4820-01-440-2026 Valve, Globe →

4820-01-440-2014 — Valves, Nonpowered

Features

Valve,check,oxygen System — FSC 4820
4 manufacturer part numbers on file
Manufacturer of record: Flowserve Inc

Identification

NSN: 4820-01-440-2014
NIIN: 014402014
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 1.250IN SW851
Manufacturer: Flowserve Inc

General Description

The Valve,check,oxygen System, cataloged under National Stock Number 4820-01-440-2014, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Flowserve Inc. The record lists 4 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	4820-01-440-2014
Primary Part Number	1.250IN SW851
Item Name	Valve,check,oxygen System
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Flowserve Inc
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
1.250IN SW851 PRIMARY	Flowserve Inc (USA)
1-1/4IN SW851 PRIMARY	Flowserve Inc (USA)
SW851 MOD 1.25IN	Flowserve Inc (USA)
SW851 MOD 1-1/4IN	Flowserve Inc (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 4820-01-440-2014?

NSN 4820-01-440-2014 is a Valve,check,oxygen System, manufactured by Flowserve Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-440-2014?

NSN 4820-01-440-2014 has 4 manufacturer part numbers on file: 1.250IN SW851 (Flowserve Inc), 1-1/4IN SW851 (Flowserve Inc), SW851 MOD 1.25IN (Flowserve Inc), SW851 MOD 1-1/4IN (Flowserve Inc).

What are the specifications of 1.250IN SW851?

Key specifications for 1.250IN SW851: End Item Identification: STRATEGIC SEALIFT CONVERSION SHIPS CLASS. 0 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-440-2014 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.

PartsTable Design LLC · partstable.com