PartsTable TECHNICAL DATA SHEET

NSN 4820-01-616-5599Government record, cited

Valve, Float4820-01-616-5599

NSN 4820-01-616-5599 · NIIN 016165599 · Part number 121257-55731

Yanmar America Corporation · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 80LX1

Government record, cited

NSN 4820-01-616-5599 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-616-5599. Manufacturer of record part number: 121257-55731.

Also searched as 4820-01-616-5599 · 4820016165599 · NIIN 016165599 · 01-616-5599 · FSC 4820 Valves, Nonpowered · CAGE 80LX1 · 121257-55731

Nearby stock numbers ← 4820-01-616-5400 Valve, Check · 4820-01-616-5666 Valve, Relief, Pressure and Temper →

4820-01-616-5599 — Valves, Nonpowered

Features

Valve,float — FSC 4820
1 manufacturer part number on file
Manufacturer of record: Yanmar America Corporation

Identification

NSN: 4820-01-616-5599
NIIN: 016165599
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 121257-55731
Manufacturer: Yanmar America Corporation

General Description

The Valve,float, cataloged under National Stock Number 4820-01-616-5599, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Yanmar America Corporation. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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	4820-01-616-5599
Primary Part Number	121257-55731
Item Name	Valve,float
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Yanmar America Corporation
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
121257-55731 PRIMARY	Yanmar America Corporation (USA)

Reference documents

Reference	Meaning
121257-55731	3/9 Design control — primary reference Yanmar Diesel America Corp

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 4820-01-616-5599?

NSN 4820-01-616-5599 is a Valve,float, manufactured by Yanmar America Corporation, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-616-5599?

NSN 4820-01-616-5599 has 1 manufacturer part number on file: 121257-55731 (Yanmar America Corporation).

What are the specifications of 121257-55731?

Key specifications for 121257-55731: End Item Identification: 6115015755535. 0 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-616-5599 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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