Valve, Exhaust Control4820-01-412-3893

NSN 4820-01-412-3893 · NIIN 014123893 · Part number 6736988 18IN PORT

Naval Sea Systems Command · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 53711

Government record, cited

NSN 4820-01-412-3893 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-412-3893. Manufacturer of record part number: 6736988 18IN PORT.

Also searched as 4820-01-412-3893 · 4820014123893 · NIIN 014123893 · 01-412-3893 · FSC 4820 Valves, Nonpowered · CAGE 53711 · 6736988 18IN PORT · 259-6736988 18IN PORT · 6736974 FIND F8

Nearby stock numbers ← 4820-01-412-3889 Gear Operator, Valve · 4820-01-412-3894 Cap, Valve →

4820-01-412-3893 — Valves, Nonpowered

Features

Valve,exhaust Control — FSC 4820
4 manufacturer part numbers on file
Manufacturer of record: Naval Sea Systems Command

Identification

NSN: 4820-01-412-3893
NIIN: 014123893
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 6736988 18IN PORT
Manufacturer: Naval Sea Systems Command

General Description

The Valve,exhaust Control, cataloged under National Stock Number 4820-01-412-3893, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Naval Sea Systems Command. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Catalog Facts

Item Name	Valve,exhaust Control
FSC / FSG	4820 — Valves, Nonpowered (FSG 48)
Manufacturers	Naval Sea Systems Command (CAGE 53711); Bollinger Shipyards Lockport, L.l.c. (CAGE 64513)

Technical Specifications

Parameter	Value
NSN	4820-01-412-3893
Primary Part Number	6736988 18IN PORT
Item Name	Valve,exhaust Control
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Naval Sea Systems Command
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
6736988 18IN PORT PRIMARY	Naval Sea Systems Command (USA)
6736988 18IN PORT	Bollinger Shipyards Lockport, L.l.c. (USA)
259-6736988 18IN PORT	Bollinger Shipyards Lockport, L.l.c. (USA)
6736974 FIND F8	Naval Sea Systems Command (USA)

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 4820-01-412-3893?

NSN 4820-01-412-3893 is a Valve,exhaust Control, manufactured by Naval Sea Systems Command, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-412-3893?

NSN 4820-01-412-3893 has 4 manufacturer part numbers on file: 6736988 18IN PORT (Naval Sea Systems Command), 6736988 18IN PORT (Bollinger Shipyards Lockport, L.l.c.), 259-6736988 18IN PORT (Bollinger Shipyards Lockport, L.l.c.), 6736974 FIND F8 (Naval Sea Systems Command).

Is NSN 4820-01-412-3893 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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