PartsTable TECHNICAL DATA SHEET

NSN 4820-01-377-7481Government record, cited

Valve, Gate4820-01-377-7481

NSN 4820-01-377-7481 · NIIN 013777481 · Part number 4354-S-183

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

Government record, cited

NSN 4820-01-377-7481 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-377-7481. Manufacturer of record part number: 4354-S-183.

Also searched as 4820-01-377-7481 · 4820013777481 · NIIN 013777481 · 01-377-7481 · FSC 4820 Valves, Nonpowered · CAGE 76364 · 4354-S-183 · 4354-S-180 · 253873 ASSY 98 PIECE 4

Nearby stock numbers ← 4820-01-377-7478 Valve, Gate · 4820-01-377-7483 Seat, Valve →

4820-01-377-7481 — Valves, Nonpowered

Features

Valve,gate — FSC 4820
2 manufacturer part numbers on file
Manufacturer of record: Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc

Identification

NSN: 4820-01-377-7481
NIIN: 013777481
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 4354-S-183
Manufacturer: Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc

General Description

The Valve,gate, cataloged under National Stock Number 4820-01-377-7481, 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 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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	4820-01-377-7481
Primary Part Number	4354-S-183
Item Name	Valve,gate
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
4354-S-183 PRIMARY	Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc (USA)
253873 ASSY 98 PIECE 4	Huntington Ingalls Inc Div Newport News Shipbuilding (USA)

Reference documents

Reference	Meaning
4354-S-180	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 4820-01-377-7481?

NSN 4820-01-377-7481 is a Valve,gate, 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 4820-01-377-7481?

NSN 4820-01-377-7481 has 2 manufacturer part numbers on file: 4354-S-183 (Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc), 253873 ASSY 98 PIECE 4 (Huntington Ingalls Inc Div Newport News Shipbuilding).

What are the specifications of 4354-S-183?

Key specifications for 4354-S-183: End Item Identification: VALVE,GATE;NEWPORT NEWS SHIPBUILDING AND DRY DOCK CO SHIP REPAIR SALES DEPT. 0 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-377-7481 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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