Centerfire Consumables

Bernard developed its Centerfire™ consumables system with the user’s cost considerations in mind. Our contact tips, nozzles and diffusers are easy to use and high performing – they provide better arc starts, less spatter and more consistent welds – and also last up to three times longer than competitive brands.

Not currently using a Bernard® MIG gun? You can still enjoy the benefits of Centerfire consumables by installing them on other brands of MIG guns by using our Centerfire conversion series.

All consumables are not created equal. From materials to cost and design quality, each brand on the market varies and so does their performance. In fact, comparing consumable quality and costs to the amount of labor for changeover and rework often reveals surprising results – less expensive consumables don’t always add up to cost savings.

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  • No tools required to replace tip or nozzle
  • “Drop-in” tip with no threads means quick change after burnback, reducing down time
  • Large diameter tip base and tapered seat provides better electrical conductivity and heat transfer
  • Spatter shield within nozzle protects diffuser and gives smoother, less turbulent gas flow
  • Solid, concentric relationship between tip and nozzle keeps tip centered even after hard use and abuse
  • Threaded nozzle holds tip fixed at 1/4″ or 1/8″ recess, flush, or 1/8″ stick out
  • Complete family of tips and nozzles is available to meet most of your welding needs

Looking for heavy-duty consumables?

The Centerfire HD series is designed specifically for shipbuilding, trailer fabrication or any heavy equipment manufacturing operation.

Centrefire Group Consumables
  • Nozzles feature a removable nozzle cone, thicker walls and a high temperature insulator
  • Nozzle cleaning made easy – the removable nozzle cone allows greater access to the nozzle body for spatter removal
  • Available in a variety of configurations with several nozzle orifices and tip recesses
  • Compatible with standard Centerfire contact tips, gas diffusers and insulating caps

System Components

Centerfire Consumables

  • Centerfire contact tips
  • Centerfire gas diffusers
  • Centerfire nozzles
  • Neck insulators
    • 4523R (small insulator)
    • 4423R (large insulator)

Centerfire HD Series Consumables

  • Centerfire contact tips
  • Centerfire gas diffusers
  • Centerfire nozzle cones
  • Centerfire nozzle bodies
  • Neck insulators
    • 4423R (large insulator)

Product Compatibility

Centerfire consumables are compatible with the following:

Centerfire Contact Tips; Copper

For use with Centerfire and Centerfire HD series consumables

T-023‘T’ series contact tip for 0.023″ (0.6 mm) wire
T-030‘T’ series contact tip for 0.030″ (0.8 mm) wire
T-035‘T’ series contact tip for 0.035″ (0.9 mm) wire
T-039‘T’ series contact tip for 0.039″ (1.0 mm) wire
T-045‘T’ series contact tip for 0.045″ (1.2 mm) wire
T-052‘T’ series contact tip for 0.052″ (1.4 mm) wire
T-062‘T’ series contact tip for 1/16″ (1.6 mm) wire
T-072‘T’ series contact tip for 0.072″ (1.8 mm) wire
T-078‘T’ series contact tip for 5/64″ (2.0 mm) wire
T-094‘T’ series contact tip for 3/32″ (2.4 mm) wire
T-109‘T’ series contact tip for 7/64″ (2.8 mm) wire
T-125‘T’ series contact tip for 1/8″ (3.2 mm) wire

Centerfire Tapered Contact Tips; Copper

For use with Centerfire consumables; Not available for use with Centerfire HD series consumables

TT-023‘TT’ series contact tip for 0.023″ (0.6 mm) wire; tapered
TT-030‘TT’ series contact tip for 0.030″ (0.8 mm) wire; tapered
TT-035‘TT’ series contact tip for 0.035″ (0.9 mm) wire; tapered
TT-039‘TT’ series contact tip for 0.039″ (1.0 mm) wire; tapered
TT-045‘TT’ series contact tip for 0.045″ (1.2 mm) wire; tapered
TT-052‘TT’ series contact tip for 0.052″ (1.4 mm) wire; tapered
TT-062‘TT’ series contact tip for 1/16″ (1.6 mm) wire; tapered
D-1Gas diffuser, large

For use with Centerfire consumables; Not available for use with Centerfire HD series consumables

DS-1Gas diffuser, small
DW-1Gas diffuser, water-cooled

Centerfire Nozzles; Small

NS-5800C5/8″ bore, flush, copper
NS-5818C5/8″ bore, 1/8″ recess, copper
NS-5800B5/8″ bore, flush, brass
NS-5818B5/8″ bore, 1/8″ recess, brass
NS-1218C1/2″ bore, 1/8″ recess, copper
NS-1200B1/2″ bore, flush, brass
NS-1218B1/2″ bore, 1/8″ recess, brass
NS-FLXSelf-Shielded Conversion Kit (includes 7010024 and 7010059 insulators, plus 7010046 tip holder)
NST-3800B3/8″ bore, flush, brass; tapered
NST-3818B3/8″ bore, 1/8″ recess, brass; tapered
NST-38XTB3/8″ bore, 1/8″ extension, brass; tapered

Centerfire Nozzles; Large

N-3400C3/4″ bore, flush, copper
N3418C3/4″ bore, 1/8″ recess, copper
N-3414C3/4″ bore, 1/4″ recess, copper
N-3418B3/4 bore, 1/8″ recess, brass
N-3414B3/4″ bore, 1/4″ recess, brass
N-5800C5/8″ bore, flush, copper
N-5818C5/8″ bore, 1/8 recess, copper
N-5814C5/8″ bore, 1/4″ recess, copper
N-5818B5/8″ bore, 1/8″ recess, brass
N-5814B5/8″ bore, 1/4″ recess, brass
NT-3800C3/8″ bore, flush, copper; tapered

Centerfire Nozzles; Water-Cooled

NW-3418C3/4″ bore, 1/8″ recess, copper
NW-3414C3/4″ bore, 1/4″ recess, copper

Compatible Liners

Family of color-coded Bernard conventional liners
Bernard Conventional Liners
Family of three QUICK LOAD liners with liner retainers
QUICK LOAD Liners
Set of two Tregaskiss conventional liners for MIG welding guns
Liners for Aluminum Wire
Cutaway of a jump liner installed inside a MIG gun
Jump Liners


Bernard Conventional Liners

Liner Color:
L1A-15Yellowfor 0.023″-0.030″ (0.6-0.8 mm) wire, 15 ft (4.57 m)
L1A-25Yellowfor 0.023″-0.030″ (0.6-0.8 mm) wire, 25 ft (7.62 m)
L2A-15Greenfor 0.030″-0.035″ (0.8-0.9 mm) wire, 15 ft (4.57 m)
L2A-25Greenfor 0.030″-0.035″ (0.8-0.9 mm) wire, 25 ft (7.62 m)
L3A-15*Whitefor 0.035″-0.045″ (0.9-1.2 mm) wire, 15 ft (4.57 m)
L3A-25*Whitefor 0.035″-0.045″ (0.9-1.2 mm) wire, 25 ft (7.62 m)
L4A-15**Redfor 0.045″-1/16″ (1.2-1.6 mm) wire, 15 ft (4.57 m)
L4A-25**Redfor 0.045″-1/16″ (1.2-1.6 mm) wire, 25 ft (7.62 m)
L6A-15Bluefor 5/64″ (2.0 mm) wire, 15 ft (4.57 m)
L6A-25Bluefor 5/64″ (2.0 mm) wire, 25 ft (7.62 m)
L7A-15Greyfor 3/32″ (2.4 mm) wire, 15 ft (4.57 m)
L7A-25Greyfor 3/32″ (2.4 mm) wire, 25 ft (7.62 m)
L8A-15Blackfor 7/64″-1/8″ (2.8-3.2 mm) wire, 15 ft (4.57 m)
L8A-25Blackfor 7/64″-1/8″ (2.8-3.2 mm) wire, 25 ft (7.62 m)
*Standard liner for guns using 0.035″ and 0.045″ wire
**Standard liner for guns using 1/16″ wire

QUICK LOAD® Liners

415-23-15Qfor 0.023″ wire, 15′ length; high carbon steel – round wound; replaces conventional liner 415-23-15
415-30-6Qfor 0.030″ wire, 6′ length; high carbon steel – round wound; replaces conventional liner 415-30-6
415-30-15Qfor 0.030″ wire, 15′ length; high carbon steel – round wound; replaces conventional liner 415-30-15
415-35-6Qfor 0.035″ – 0.045″ wire, 6′ length; high carbon steel – round wound; replaces conventional liner 415-35-6
415-35-10Qfor 0.035″ – 0.045″ wire, 10′ length; high carbon steel – round wound; replaces conventional liner 415-35-10
415-35-15Qfor 0.035″ – 0.045″ wire, 15′ length; high carbon steel – round wound; replaces conventional liner 415-35-15
415-35-25Qfor 0.035″ – 0.045″ wire, 25′ length; high carbon steel – round wound; replaces conventional liner 415-35-25
415-116-6Qfor 0.045″ – 1/16″ wire, 6′ length; high carbon steel – round wound; replaces conventional liner 415-116-6
415-116-10Qfor 0.045″ – 1/16″ wire, 10′ length; high carbon steel – round wound; replaces conventional liner 415-116-10
415-116-15Qfor 0.045″ – 1/16″ wire, 15′ length; high carbon steel – round wound; replaces conventional liner 415-116-15
415-116-25Qfor 0.045″ – 1/16″ wire, 25′ length; high carbon steel – round wound; replaces conventional liner 415-116-25
415-564-6Qfor 1/16″ – 5/64″ wire, 6′ length; high carbon steel – round wound; replaces conventional liner 415-564-6
415-564-15Qfor 1/16″ – 5/64″ wire, 15′ length; high carbon steel – round wound; replaces conventional liner 415-564-15
415-564-25Qfor 1/16″ – 5/64″ wire, 25′ length; high carbon steel – round wound; replaces conventional liner 415-564-25
415-332-6Qfor 0.078″ – 3/32″ wire, 6′ length; high carbon steel – round wound; replaces conventional liner 415-332-6
415-332-15Qfor 0.078″ – 3/32″ wire, 15′ length; high carbon steel – round wound; replaces conventional liner 415-332-15
415-332-25Qfor 0.078″ – 3/32″ wire, 25′ length; high carbon steel – round wound; replaces conventional liner 415-332-25

QUICK LOAD Liner Retainers

Required for initial QUICK LOAD liner installation only (sold separately)

415-24*for 0.078″ – 3/32″ wire
415-26*for 0.030″ – 5/64″ wire
415-37**for 0.030″ – 5/64″ wire
 *Compatible with Tregaskiss® robotic and automatic MIG guns and Bernard® BTB and TGX® semi-automatic air-cooled MIG guns
**Compatible with most Tweco® MIG guns

Liners for Aluminum Wire

415-45-02Polymer liner for 0.035″ – 3/64″ aluminum wire, 10′ length
415-45-03Polymer liner for 0.035″ – 3/64″ aluminum wire, 15′ length
415-35-2Steel wrapped nylon liner for 0.035″ – 0.045″ aluminum wire, 15′ length
415-45-04Polymer liner for 0.035″ – 3/32″ aluminum wire, 25′ length
415-116-2Steel wrapped nylon liner for 0.045″ – 1/16″ aluminum wire, 15′ length
415-116-22Polymer liner for 3/64″ – 1/16″ aluminum wire, 10′ length
415-116-23Polymer liner for 3/64″ – 1/16″ aluminum wire, 15′ length
415-116-26Polymer liner for 3/64″ – 1/16″ aluminum wire, 25′ length

Jump Liners

Not recommended for use with QUICK LOAD liners

QJL-2330Jump Liner for 0.023″ (0.6 mm) – 0.030″ (0.8 mm) wire; 14″ length
QJL-2330-XLJump Liner for 0.023″ (0.6 mm) – 0.030″ (0.8 mm) wire; 27″ length
QJL-3545Jump Liner for 0.035″ (0.9 mm) – 0.045″ (1.2 mm) wire; 14″ length
QJL-3545-XLJump Liner for 0.035″ (0.9 mm) – 0.045″ (1.2 mm) wire; 27″ length
QJL-116Jump Liner for 1/16″ (1.6 mm) wire; 14″ length
QJL-116-XLJump Liner for 1/16″ (1.6 mm) wire; 27″ length
QJLH-116Heavy Duty (HD) Jump Liner for 1/16″ (1/6 mm) wire; 14″ length
QJLN-364Nylon Jump Liner for 0.035″ (0.9 mm) – 3/64″ (1.2 mm) aluminum wire; 14″ length
QJLN-116Nylon Jump Liner for 1/16″ (1.6 mm) aluminum wire; 14″ length

Centerfire HD Series Consumables

Centerfire Contact Tips; Copper

T-023‘T’ Series contact tip for 0.023″ (0.6 mm) wire
T-030‘T’ Series contact tip for 0.030″ (0.8 mm) wire
T-035‘T’ Series contact tip for 0.035″ (0.9 mm) wire
T-039‘T’ Series contact tip for 0.039″ (1.0 mm) wire
T-045‘T’ Series contact tip for 0.045″ (1.2 mm) wire
T-052‘T’ Series contact tip for 0.052″ (1.4 mm) wire
T-062‘T’ Series contact tip for 1/16″ (1.6 mm) wire
T-072‘T’ Series contact tip for 0.072″ (1.8 mm) wire
T-078‘T’ Series contact tip for 5/64″ (2.0 mm) wire
T-094‘T’ Series contact tip for 3/32″ (2.4 mm) wire
T-109‘T’ Series contact tip for 7/64″ (2.8 mm) wire
T-125‘T’ Series contact tip for 1/8″ (3.2 mm) wire

Centerfire Gas Diffusers

D-1Large gas diffuser

Centerfire Nozzle Bodies

N-HDCNozzle body

Centerfire Nozzle Cones

34143/4″ bore, 1/4″ recess
34183/4″ bore, 1/8″ recess
58145/8″ bore, 1/4″ recess
58185/8″ bore, 1/8″ recess

Neck Insulators

4423RLarge insulator

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