PartsTable TECHNICAL DATA SHEET

NSN 4820-01-124-0309Government record, cited

Cartridge, Oil Bypass Valve4820-01-124-0309

NSN 4820-01-124-0309 · NIIN 011240309 · Part number VD-210354N

Vernatherm Llc · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 55193

Government record, cited

NSN 4820-01-124-0309 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-124-0309. Manufacturer of record part number: VD-210354N.

Also searched as 4820-01-124-0309 · 4820011240309 · NIIN 011240309 · 01-124-0309 · FSC 4820 Valves, Nonpowered · CAGE 55193 · VD-210354N · 11E76 · 11E76-2 · 11E76-2

Nearby stock numbers ← 4820-01-124-0307 Damper, Valve, Check · 4820-01-124-0314 Trip Valve and Stem Assembly →

4820-01-124-0309 — Valves, Nonpowered

Features

Cartridge,oil Bypass Valve — FSC 4820
3 manufacturer part numbers on file
Manufacturer of record: Vernatherm Llc

Identification

NSN: 4820-01-124-0309
NIIN: 011240309
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: VD-210354N
Manufacturer: Vernatherm Llc

General Description

The Cartridge,oil Bypass Valve, cataloged under National Stock Number 4820-01-124-0309, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Vernatherm Llc. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.

Catalog Facts

Item Name	Cartridge,oil Bypass Valve
FSC / FSG	4820 — Valves, Nonpowered (FSG 48)
Manufacturers	Ontic Engineering & Manufacturing, Inc Dba Ontic Us (CAGE 45934); Grimes Aerospace Company (CAGE 72914); Vernatherm Llc (CAGE 55193)

Technical Specifications

Parameter	Value
NSN	4820-01-124-0309
Primary Part Number	VD-210354N
Item Name	Cartridge,oil Bypass Valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Vernatherm Llc
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
11E76-2	Ontic Engineering & Manufacturing, Inc Dba Ontic Us (USA)
11E76-2	Grimes Aerospace Company (USA)
VD-210354N PRIMARY	Vernatherm Llc (USA)

Reference documents

Reference	Meaning
11E76	D/9 Drawing number reference only Grimes Aerospace Company

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 4820-01-124-0309?

NSN 4820-01-124-0309 is a Cartridge,oil Bypass Valve, manufactured by Vernatherm Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-124-0309?

NSN 4820-01-124-0309 has 3 manufacturer part numbers on file: 11E76-2 (Ontic Engineering & Manufacturing, Inc Dba Ontic Us), 11E76-2 (Grimes Aerospace Company), VD-210354N (Vernatherm Llc).

Is NSN 4820-01-124-0309 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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