Valve, Check4820-01-424-0857

NSN 4820-01-424-0857 · NIIN 014240857 · Part number 004187

Dover Corp Groen Div · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 26465

Government record, cited

NSN 4820-01-424-0857 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-424-0857. Manufacturer of record part number: 004187.

Also searched as 4820-01-424-0857 · 4820014240857 · NIIN 014240857 · 01-424-0857 · FSC 4820 Valves, Nonpowered · CAGE 26465 · 004187 · NEB/1 48KW BOILER ITEM 8

Nearby stock numbers ← 4820-01-424-0856 Valve, Safety Relief · 4820-01-424-0858 Valve, Globe →

4820-01-424-0857 — Valves, Nonpowered

Features

Valve,check — FSC 4820
Flow Control Device: DISK
Style Designator: STRAIGHT THRU
Media for Which Designed: STEAM SINGLE RESPONSE
2 manufacturer part numbers on file
Manufacturer of record: Dover Corp Groen Div

Identification

NSN: 4820-01-424-0857
NIIN: 014240857
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 004187
Manufacturer: Dover Corp Groen Div

General Description

The Valve,check, cataloged under National Stock Number 4820-01-424-0857, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Dover Corp Groen Div. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-01-424-0857
Primary Part Number	004187
Item Name	Valve,check
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Dover Corp Groen Div
Status	ACTIVE
Flow Control Device	DISK
Style Designator	STRAIGHT THRU
Media for Which Designed	STEAM SINGLE RESPONSE

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
004187 PRIMARY	Dover Corp Groen Div (USA)
NEB/1 48KW BOILER ITEM 8	Dover Corp Groen Div (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 4820-01-424-0857?

NSN 4820-01-424-0857 is a Valve,check, manufactured by Dover Corp Groen Div, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-424-0857?

NSN 4820-01-424-0857 has 2 manufacturer part numbers on file: 004187 (Dover Corp Groen Div), NEB/1 48KW BOILER ITEM 8 (Dover Corp Groen Div).

What are the specifications of 004187?

Key specifications for 004187: Flow Control Device: DISK; Style Designator: STRAIGHT THRU; Special Features: STEAM GENERATOR; Media for Which Designed: STEAM SINGLE RESPONSE. 3 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-424-0857 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.

PartsTable Design LLC · partstable.com