PartsTable TECHNICAL DATA SHEET

NSN 4820-01-577-4366Government record, cited

Valve, Check4820-01-577-4366

NSN 4820-01-577-4366 · NIIN 015774366 · Part number 5399-026T 100

Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 76364

Government record, cited

NSN 4820-01-577-4366 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-577-4366. Manufacturer of record part number: 5399-026T 100.

Also searched as 4820-01-577-4366 · 4820015774366 · NIIN 015774366 · 01-577-4366 · FSC 4820 Valves, Nonpowered · CAGE 76364 · 5399-026T 100 · 5399-026T 1.00IN · 5399-026T ASSY 5399-026T 1.00IN

Nearby stock numbers ← 4820-01-577-4332 Valve, Check · 4820-01-577-4377 Valve, Stop-Check →

4820-01-577-4366 — Valves, Nonpowered

Features

Valve,check — FSC 4820
1 manufacturer part number on file
Manufacturer of record: Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc

Identification

NSN: 4820-01-577-4366
NIIN: 015774366
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 5399-026T 100
Manufacturer: Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc

General Description

The Valve,check, cataloged under National Stock Number 4820-01-577-4366, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Catalog Facts

Item Name	Valve,check
FSC / FSG	4820 — Valves, Nonpowered (FSG 48)
Manufacturers	Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc (CAGE 76364)

Technical Specifications

Parameter	Value
NSN	4820-01-577-4366
Primary Part Number	5399-026T 100
Item Name	Valve,check
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc
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
5399-026T 100 PRIMARY	Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc (USA)

Reference documents

Reference	Meaning
5399-026T 1.00IN	5/9 Secondary reference Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc
5399-026T ASSY 5399-026T 1.00IN	5/9 Secondary reference Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc

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 4820-01-577-4366?

NSN 4820-01-577-4366 is a Valve,check, manufactured by Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-577-4366?

NSN 4820-01-577-4366 has 1 manufacturer part number on file: 5399-026T 100 (Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc).

Is NSN 4820-01-577-4366 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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