PartsTable TECHNICAL DATA SHEET

NSN 4820-01-179-6747Government record, cited

Piston, Shutoff Valve4820-01-179-6747

NSN 4820-01-179-6747 · NIIN 011796747 · Part number 3193175

L3 Technologies, Inc. Div Ocean Systems · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 60225

Government record, cited

NSN 4820-01-179-6747 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-179-6747. Manufacturer of record part number: 3193175.

Also searched as 4820-01-179-6747 · 4820011796747 · NIIN 011796747 · 01-179-6747 · FSC 4820 Valves, Nonpowered · CAGE 60225 · 3193175

Nearby stock numbers ← 4820-01-179-6728 Seat, Valve · 4820-01-179-6750 Case, Solenoid →

4820-01-179-6747 — Valves, Nonpowered

Features

Piston,shutoff Valve — FSC 4820
General Characteristics Item Description: AL ALLOY QQ-A-225/8 6061-T651; ANODIZE MIL-A-8625 TY1 CL1; 1.130-1.135 IN. LG; 0.672-0.673 IN. HD DIA; 0.325-0.345 IN. SHANK DIA IN
1 manufacturer part number on file
Manufacturer of record: L3 Technologies, Inc. Div Ocean Systems

Identification

NSN: 4820-01-179-6747
NIIN: 011796747
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 3193175
Manufacturer: L3 Technologies, Inc. Div Ocean Systems

General Description

The Piston,shutoff Valve, cataloged under National Stock Number 4820-01-179-6747, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is L3 Technologies, Inc. Div Ocean Systems. Government technical data includes 1 specification, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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	4820-01-179-6747
Primary Part Number	3193175
Item Name	Piston,shutoff Valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	L3 Technologies, Inc. Div Ocean Systems
Status	ACTIVE
General Characteristics Item Description	AL ALLOY QQ-A-225/8 6061-T651; ANODIZE MIL-A-8625 TY1 CL1; 1.130-1.135 IN. LG; 0.672-0.673 IN. HD DIA; 0.325-0.345 IN. SHANK DIA IN

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
3193175 PRIMARY	L3 Technologies, Inc. Div Ocean Systems (USA)

Reference documents

Reference	Meaning
3193175	5/9 Secondary reference Allied-Signal Inc Dba Allied-Signal Aerospace Co Electrodynamics Div

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 4820-01-179-6747?

NSN 4820-01-179-6747 is a Piston,shutoff Valve, manufactured by L3 Technologies, Inc. Div Ocean Systems, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-179-6747?

NSN 4820-01-179-6747 has 1 manufacturer part number on file: 3193175 (L3 Technologies, Inc. Div Ocean Systems).

What are the specifications of 3193175?

Key specifications for 3193175: General Characteristics Item Description: AL ALLOY QQ-A-225/8 6061-T651; ANODIZE MIL-A-8625 TY1 CL1; 1.130-1.135 IN. LG; 0.672-0.673 IN. HD DIA; 0.325-0.345 IN. SHANK DIA IN. 1 specification is documented in the U.S. Government catalog.

Is NSN 4820-01-179-6747 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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