Nozzle, Welding3431-01-666-3924

NSN 3431-01-666-3924 · NIIN 016663924 · Part number QT3-45

Bernard Welding · FSC 3431 — Electric Arc Welding Equipment · FSG 34 — Metalworking Machinery (continued) · CAGE 0LN68

Government record, cited

NSN 3431-01-666-3924 — this item is cataloged by the U.S. Government under National Stock Number 3431-01-666-3924. Manufacturer of record part number: QT3-45.

Also searched as 3431-01-666-3924 · 3431016663924 · NIIN 016663924 · 01-666-3924 · FSC 3431 Electric Arc Welding Equipment · CAGE 0LN68 · QT3-45

Nearby stock numbers ← 3431-01-666-3917 Guide, Wire, Gas Shielded Arc Weld · 3431-01-666-4304 Trigger, Welder →

Features

Nozzle,welding — FSC 3431
Mounting Method: THREADED
Bend Angle in Deg: 45.0
Thread Location: EXTERNAL
1 manufacturer part number on file
Manufacturer of record: Bernard Welding

Identification

NSN: 3431-01-666-3924
NIIN: 016663924
FSC: 3431 — Electric Arc Welding Equipment
FSG: 34 — Metalworking Machinery (continued)
Primary part number: QT3-45
Manufacturer: Bernard Welding

General Description

The Nozzle,welding, cataloged under National Stock Number 3431-01-666-3924, is classified within Federal Supply Class 3431 (Electric Arc Welding Equipment) of the Metalworking Machinery (continued) group. The manufacturer of record is Bernard Welding. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	3431-01-666-3924
Primary Part Number	QT3-45
Item Name	Nozzle,welding
FSC / FSG	3431 / 34 — Electric Arc Welding Equipment
Manufacturer	Bernard Welding
Status	ACTIVE
Mounting Method	THREADED
Bend Angle in Deg	45.0
Thread Location	EXTERNAL

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
QT3-45 PRIMARY	Bernard Welding (USA)

No interchangeability data on file.

Other items in FSC 3431 — Electric Arc Welding Equipment

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

3431-00-008-9353

3431-00-008-9353 · Item name not on file

3431-00-010-5596

LINER,NITROGEN CONDUIT

3431-00-010-5597

LINER,NITROGEN COND

3431-00-010-5599

3431-00-010-5599 · Item name not on file

3431-00-012-4357

3431-00-012-4357 · Item name not on file

3431-00-012-4360

3431-00-012-4360 · Item name not on file

3431-00-012-4362

SPARK GAP ASSEMBLY

3431-00-015-2564

PANEL,POWER,ALTERNATE

Frequently Asked Questions

What is NSN 3431-01-666-3924?

NSN 3431-01-666-3924 is a Nozzle,welding, manufactured by Bernard Welding, classified under FSC 3431, Electric Arc Welding Equipment. Status: active.

What part numbers are listed for NSN 3431-01-666-3924?

NSN 3431-01-666-3924 has 1 manufacturer part number on file: QT3-45 (Bernard Welding).

What are the specifications of QT3-45?

Key specifications for QT3-45: Mounting Method: THREADED; Bend Angle in Deg: 45.0; Thread Location: EXTERNAL; End Item Identification: 4940016159020. 3 specifications are documented in the U.S. Government catalog.

Is NSN 3431-01-666-3924 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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