PartsTable TECHNICAL DATA SHEET

NSN 4820-01-561-7993Government record, cited

Solenoid Vlv, Filter4820-01-561-7993

NSN 4820-01-561-7993 · NIIN 015617993 · Part number 20001121-001

Drs Environmental Systems Inc · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 5RQL2

Government record, cited

NSN 4820-01-561-7993 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-561-7993. Manufacturer of record part number: 20001121-001.

Also searched as 4820-01-561-7993 · 4820015617993 · NIIN 015617993 · 01-561-7993 · FSC 4820 Valves, Nonpowered · CAGE 5RQL2 · 20001121-001

Nearby stock numbers ← 4820-01-561-7988 Therm Unload Valve · 4820-01-561-7997 Bypass Valve Soft S →

4820-01-561-7993 — Valves, Nonpowered

Features

Solenoid Vlv,filter — FSC 4820
1 manufacturer part number on file
Manufacturer of record: Drs Environmental Systems Inc

Identification

NSN: 4820-01-561-7993
NIIN: 015617993
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 20001121-001
Manufacturer: Drs Environmental Systems Inc

General Description

The Solenoid Vlv,filter, cataloged under National Stock Number 4820-01-561-7993, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Drs Environmental Systems Inc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-01-561-7993
Primary Part Number	20001121-001
Item Name	Solenoid Vlv,filter
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Drs Environmental Systems 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
20001121-001 PRIMARY	Drs Environmental Systems Inc (USA)

Reference documents

Reference	Meaning
20001121-001	3/9 Design control — primary reference U.S. Government activity

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 4820-01-561-7993?

NSN 4820-01-561-7993 is a Solenoid Vlv,filter, manufactured by Drs Environmental Systems Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-561-7993?

NSN 4820-01-561-7993 has 1 manufacturer part number on file: 20001121-001 (Drs Environmental Systems Inc).

What are the specifications of 20001121-001?

Key specifications for 20001121-001: End Item Identification: NSC 417 FT., WMSL-750 FT. 0 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-561-7993 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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