PartsTable TECHNICAL DATA SHEET

NSN 4820-01-193-7905Government record, cited

Disk, Valve4820-01-193-7905

NSN 4820-01-193-7905 · NIIN 011937905 · Part number EW-155C

DC Fabricators Inc · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 65427

Government record, cited

NSN 4820-01-193-7905 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-193-7905. Manufacturer of record part number: EW-155C.

Also searched as 4820-01-193-7905 · 4820011937905 · NIIN 011937905 · 01-193-7905 · FSC 4820 Valves, Nonpowered · CAGE 65427 · EW-155C · B-58630 · FIGURE 11-38 PIECE 3

Nearby stock numbers ← 4820-01-193-7815 · 4820-01-193-7906 Disk, Valve →

4820-01-193-7905 — Valves, Nonpowered

Features

Disk,valve — FSC 4820
Material: COPPER ALLOY
3 manufacturer part numbers on file
Manufacturer of record: DC Fabricators Inc

Identification

NSN: 4820-01-193-7905
NIIN: 011937905
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: EW-155C
Manufacturer: DC Fabricators Inc

General Description

The Disk,valve, cataloged under National Stock Number 4820-01-193-7905, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is DC Fabricators Inc. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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	4820-01-193-7905
Primary Part Number	EW-155C
Item Name	Disk,valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	DC Fabricators Inc
Status	ACTIVE
Material	COPPER ALLOY

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
EW-155C PRIMARY	DC Fabricators Inc (USA)
B-58630 PRIMARY	Siemens Energy, Inc. (USA)
FIGURE 11-38 PIECE 3	Siemens Energy, Inc. (USA)

Reference documents

Reference	Meaning
EW-155C	5/9 Secondary reference Siemens Energy, Inc.

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 4820-01-193-7905?

NSN 4820-01-193-7905 is a Disk,valve, manufactured by DC Fabricators Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-193-7905?

NSN 4820-01-193-7905 has 3 manufacturer part numbers on file: EW-155C (DC Fabricators Inc), B-58630 (Siemens Energy, Inc.), FIGURE 11-38 PIECE 3 (Siemens Energy, Inc.).

What are the specifications of EW-155C?

Key specifications for EW-155C: Material: COPPER ALLOY. 1 specification is documented in the U.S. Government catalog.

Is NSN 4820-01-193-7905 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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