Cover Plate, Valve4820-01-665-8595

NSN 4820-01-665-8595 · NIIN 016658595 · Part number P521985-C1

Fmc Technologies Inc Dba Fmc Fluid Control · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 71454

Government record, cited

NSN 4820-01-665-8595 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-665-8595. Manufacturer of record part number: P521985-C1.

Also searched as 4820-01-665-8595 · 4820016658595 · NIIN 016658595 · 01-665-8595 · FSC 4820 Valves, Nonpowered · CAGE 71454 · P521985-C1 · DU500016414

Nearby stock numbers ← 4820-01-665-8572 Valve Assembly · 4820-01-665-8627 Reversing Valve →

4820-01-665-8595 — Valves, Nonpowered

Features

Cover Plate,valve — FSC 4820
1 manufacturer part number on file
Manufacturer of record: Fmc Technologies Inc Dba Fmc Fluid Control

Identification

NSN: 4820-01-665-8595
NIIN: 016658595
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: P521985-C1
Manufacturer: Fmc Technologies Inc Dba Fmc Fluid Control

General Description

The Cover Plate,valve, cataloged under National Stock Number 4820-01-665-8595, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Fmc Technologies Inc Dba Fmc Fluid Control. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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	Cover Plate,valve
FSC / FSG	4820 — Valves, Nonpowered (FSG 48)
Manufacturers	Fmc Technologies Inc Dba Fmc Fluid Control (CAGE 71454)

Technical Specifications

Parameter	Value
NSN	4820-01-665-8595
Primary Part Number	P521985-C1
Item Name	Cover Plate,valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Fmc Technologies Inc Dba Fmc Fluid Control
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.

5307-01-666-08443263928 POSSIBLE MATCH

STUD,PLAIN

Possible match (shared part number)Fmc Technologies Inc Dba Fmc Fluid Control

Cross-Reference Index

Part Number	Manufacturer
P521985-C1 PRIMARY	Fmc Technologies Inc Dba Fmc Fluid Control (USA)

Reference documents

Reference	Meaning
DU500016414	D/9 Drawing number reference only Fmc Technologies Inc Dba Fmc Fluid Control

Related Parts

5307-01-666-0844POSSIBLE MATCH

STUD,PLAIN

3263928

Frequently Asked Questions

What is NSN 4820-01-665-8595?

NSN 4820-01-665-8595 is a Cover Plate,valve, manufactured by Fmc Technologies Inc Dba Fmc Fluid Control, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-665-8595?

NSN 4820-01-665-8595 has 1 manufacturer part number on file: P521985-C1 (Fmc Technologies Inc Dba Fmc Fluid Control).

What NSN replaces 4820-01-665-8595?

1 possible match (shared part number, not a government interchangeability claim): 5307-01-666-0844. Verify interchangeability with system specifications before substitution.

Is NSN 4820-01-665-8595 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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