Seat, Valve4820-01-261-4139

NSN 4820-01-261-4139 · NIIN 012614139 · Part number 905-A

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

Government record, cited

NSN 4820-01-261-4139 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-261-4139. Manufacturer of record part number: 905-A.

Also searched as 4820-01-261-4139 · 4820012614139 · NIIN 012614139 · 01-261-4139 · FSC 4820 Valves, Nonpowered · CAGE 63220 · 905-A · F-47243 · SW-1023 · F-47243 2IN. PC14 SW-1023

Nearby stock numbers ← 4820-01-261-4138 Seat, Valve · 4820-01-261-4140 Seat, Valve →

4820-01-261-4139 — Valves, Nonpowered

Features

Seat,valve — FSC 4820
1 manufacturer part number on file
Manufacturer of record: Flowserve Inc

Identification

NSN: 4820-01-261-4139
NIIN: 012614139
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 905-A
Manufacturer: Flowserve Inc

General Description

The Seat,valve, cataloged under National Stock Number 4820-01-261-4139, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Flowserve Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Catalog Facts

Item Name	Seat,valve
FSC / FSG	4820 — Valves, Nonpowered (FSG 48)
Manufacturers	Flowserve Inc (CAGE 63220)

Technical Specifications

Parameter	Value
NSN	4820-01-261-4139
Primary Part Number	905-A
Item Name	Seat,valve
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

⇄ Related Items 1

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

4820-01-420-1070 POSSIBLE MATCH

VALVE,ANGLE

Possible match (shared part number)

Cross-Reference Index

Part Number	Manufacturer
905-A PRIMARY	Flowserve Inc (USA)

Reference documents

Reference	Meaning
905-A	5/9 Secondary reference Vante Inc Dba Vante
F-47243	5/9 Secondary reference Vante Inc Dba Vante
SW-1023	D/9 Drawing number reference only Flowserve Inc
F-47243 2IN. PC14 SW-1023	5/9 Secondary reference Vante Inc Dba Vante

Related Parts

4820-01-420-1070POSSIBLE MATCH

VALVE,ANGLE

Frequently Asked Questions

What is NSN 4820-01-261-4139?

NSN 4820-01-261-4139 is a Seat,valve, manufactured by Flowserve Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-261-4139?

NSN 4820-01-261-4139 has 1 manufacturer part number on file: 905-A (Flowserve Inc).

What NSN replaces 4820-01-261-4139?

1 possible match (shared part number, not a government interchangeability claim): 4820-01-420-1070. Verify interchangeability with system specifications before substitution.

Is NSN 4820-01-261-4139 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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