Valve, Check4820-01-134-3457

NSN 4820-01-134-3457 · NIIN 011343457 · Part number 10-42508A

Mayo Company Inc. Dba Dragon Equipment · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 64203

Government record, cited

NSN 4820-01-134-3457 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-134-3457. Manufacturer of record part number: 10-42508A.

Also searched as 4820-01-134-3457 · 4820011343457 · NIIN 011343457 · 01-134-3457 · FSC 4820 Valves, Nonpowered · CAGE 64203 · 10-42508A

Nearby stock numbers ← 4820-01-134-3456 Valve, Float · 4820-01-134-3478 Seat, Valve →

4820-01-134-3457 — Valves, Nonpowered

Features

Valve,check — FSC 4820
1 manufacturer part number on file
Manufacturer of record: Mayo Company Inc. Dba Dragon Equipment

Identification

NSN: 4820-01-134-3457
NIIN: 011343457
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 10-42508A
Manufacturer: Mayo Company Inc. Dba Dragon Equipment

General Description

The Valve,check, cataloged under National Stock Number 4820-01-134-3457, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Mayo Company Inc. Dba Dragon Equipment. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Catalog Facts

Item Name	Valve,check
FSC / FSG	4820 — Valves, Nonpowered (FSG 48)
Manufacturers	Mayo Company Inc. Dba Dragon Equipment (CAGE 64203)

Technical Specifications

Parameter	Value
NSN	4820-01-134-3457
Primary Part Number	10-42508A
Item Name	Valve,check
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Mayo Company Inc. Dba Dragon Equipment
Status	ACTIVE

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)

Cross-Reference Index

Part Number	Manufacturer
10-42508A PRIMARY	Mayo Company Inc. Dba Dragon Equipment (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 4820-01-134-3457?

NSN 4820-01-134-3457 is a Valve,check, manufactured by Mayo Company Inc. Dba Dragon Equipment, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-134-3457?

NSN 4820-01-134-3457 has 1 manufacturer part number on file: 10-42508A (Mayo Company Inc. Dba Dragon Equipment).

Is NSN 4820-01-134-3457 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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