PartsTable TECHNICAL DATA SHEET

NSN 4730-01-603-3370Government record, cited

Nut, Union4730-01-603-3370

NSN 4730-01-603-3370 · NIIN 016033370 · Part number 331099-1

Ontic Engineering & Manufacturing, Inc Dba Ontic Us · FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings · FSG 47 — Pipe, Tubing, Hose, and Fittings · CAGE 45934

Government record, cited

NSN 4730-01-603-3370 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-603-3370. Manufacturer of record part number: 331099-1.

Also searched as 4730-01-603-3370 · 4730016033370 · NIIN 016033370 · 01-603-3370 · FSC 4730 Hose, Pipe, Tube, Lubrication, and Railing Fittings · CAGE 45934 · 331099-1

Nearby stock numbers ← 4730-01-603-3297 Strainer Element, Sediment · 4730-01-603-3409 Bushing Assy →

4730-01-603-3370 — Hose, Pipe, Tube, Lubrication, and Railing Fittings

Features

Nut,union — FSC 4730
1 manufacturer part number on file
Manufacturer of record: Ontic Engineering & Manufacturing, Inc Dba Ontic Us

Identification

NSN: 4730-01-603-3370
NIIN: 016033370
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
FSG: 47 — Pipe, Tubing, Hose, and Fittings
Primary part number: 331099-1
Manufacturer: Ontic Engineering & Manufacturing, Inc Dba Ontic Us

General Description

The Nut,union, cataloged under National Stock Number 4730-01-603-3370, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Ontic Engineering & Manufacturing, Inc Dba Ontic Us. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.

Catalog Facts

Item Name	Nut,union
FSC / FSG	4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings (FSG 47)
Manufacturers	Ontic Engineering & Manufacturing, Inc Dba Ontic Us (CAGE 45934)

Technical Specifications

Parameter	Value
NSN	4730-01-603-3370
Primary Part Number	331099-1
Item Name	Nut,union
FSC / FSG	4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Manufacturer	Ontic Engineering & Manufacturing, Inc Dba Ontic Us
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
331099-1 PRIMARY	Ontic Engineering & Manufacturing, Inc Dba Ontic Us (USA)

Reference documents

Reference	Meaning
331099-1	5/9 Secondary reference Meggitt North Hollywood Inc

No interchangeability data on file.

Other items in FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

4730-00-000-1895

4730-00-000-1895 · Item name not on file

4730-00-000-4289

4730-00-000-4289 · Item name not on file

4730-00-000-4445

4730-00-000-4445 · Item name not on file

4730-00-000-8373

4730-00-000-8373 · Item name not on file

4730-00-000-8897

4730-00-000-8897 · Item name not on file

4730-00-001-0007

4730-00-001-0007 · Item name not on file

4730-00-001-0008

COUPLING,TUBE

4730-00-001-0008

COUPLING,TUBE

Frequently Asked Questions

What is NSN 4730-01-603-3370?

NSN 4730-01-603-3370 is a Nut,union, manufactured by Ontic Engineering & Manufacturing, Inc Dba Ontic Us, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.

What part numbers are listed for NSN 4730-01-603-3370?

NSN 4730-01-603-3370 has 1 manufacturer part number on file: 331099-1 (Ontic Engineering & Manufacturing, Inc Dba Ontic Us).

Is NSN 4730-01-603-3370 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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