PartsTable TECHNICAL DATA SHEET

NSN 4820-01-420-3771Government record, cited

Loading Unit, Positioner4820-01-420-3771

NSN 4820-01-420-3771 · NIIN 014203771 · Part number NS 737S-D-2

Nakakita Seisakusho Co. Ltd · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE J3237

Government record, cited

NSN 4820-01-420-3771 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-420-3771. Manufacturer of record part number: NS 737S-D-2.

Also searched as 4820-01-420-3771 · 4820014203771 · NIIN 014203771 · 01-420-3771 · FSC 4820 Valves, Nonpowered · CAGE J3237 · NS 737S-D-2 · KC004484 NO. 2 · KC004484 NO. 2

Nearby stock numbers ← 4820-01-420-3767 Holder, Pin, Check Valve · 4820-01-420-3774 Cover, Manifold, Valve, Test →

4820-01-420-3771 — Valves, Nonpowered

Features

Loading Unit,positioner — FSC 4820
2 manufacturer part numbers on file
Manufacturer of record: Nakakita Seisakusho Co. Ltd

Identification

NSN: 4820-01-420-3771
NIIN: 014203771
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: NS 737S-D-2
Manufacturer: Nakakita Seisakusho Co. Ltd

General Description

The Loading Unit,positioner, cataloged under National Stock Number 4820-01-420-3771, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Nakakita Seisakusho Co. Ltd. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-01-420-3771
Primary Part Number	NS 737S-D-2
Item Name	Loading Unit,positioner
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Nakakita Seisakusho Co. Ltd
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
NS 737S-D-2 PRIMARY	Nakakita Seisakusho Co. Ltd (JPN)
KC004484 NO. 2	Nakakita Seisakusho Co. Ltd (JPN)

Reference documents

Reference	Meaning
NS 737S-D-2	3/9 Design control — primary reference Nakakita Seisakusho Co. Ltd
KC004484 NO. 2	5/9 Secondary reference Nakakita Seisakusho Co. Ltd
NS 737S-D-2	5/9 Secondary reference Fuji Trading America Inc
NS 737S-D-2	5/9 Secondary reference Fuji Trading (america) 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 4820-01-420-3771?

NSN 4820-01-420-3771 is a Loading Unit,positioner, manufactured by Nakakita Seisakusho Co. Ltd, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-420-3771?

NSN 4820-01-420-3771 has 2 manufacturer part numbers on file: NS 737S-D-2 (Nakakita Seisakusho Co. Ltd), KC004484 NO. 2 (Nakakita Seisakusho Co. Ltd).

What are the specifications of NS 737S-D-2?

Key specifications for NS 737S-D-2: End Item Identification: STRATEGIC SEALIFT CONVERSION SHIPS CLASS; NAKAKITA SEISAKUSHO CO LTD VALVE POSITIONER TYPE NS737S-D. 0 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-420-3771 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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