PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

638948Tip,welding Torch

Esab Group, Inc., the Dba Esab Welding and Cutting Products Div Esab Welding and Cuttng · NSN 3433-00-355-6243 · FSC 3433 · No Item Name Available
Verified by PartsTable
NSN 3433-00-355-6243 — this item is cataloged by the U.S. Government under National Stock Number 3433-00-355-6243. Primary manufacturer part number: 638948.
Features
  • Tip,welding Torch — FSC 3433
  • Material: COPPER ALLOY
  • Style Designator: ONE PIECE
  • Attachment Method: THREAD
  • Fuel Type: ACETYLENE
  • 5 verified cross-references
  • Primary manufacturer: Esab Group, Inc., the Dba Esab Welding and Cutting Products Div Esab Welding and Cuttng
Applications
  • Applications requiring Copper Alloy construction
General Description

The Tip,welding Torch, cataloged under National Stock Number 3433-00-355-6243, is classified within Federal Supply Class 3433 (No Item Name Available) of the Metalworking Machinery (continued) group. The primary manufacturer of record is Esab Group, Inc., the Dba Esab Welding and Cutting Products Div Esab Welding and Cuttng. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3433-00-355-6243
Primary Part Number638948
Item NameTip,welding Torch
FSC / FSG3433 / 34 — No Item Name Available
ManufacturerEsab Group, Inc., the Dba Esab Welding and Cutting Products Div Esab Welding and Cuttng
StatusCANCELLED
MaterialCOPPER ALLOY
Style DesignatorONE PIECE
Attachment MethodTHREAD
Fuel TypeACETYLENE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
6680-00-053-3961S21 INTERCHANGEABLE
Plug,sight
Eaton Aerospace Llc Div Fluid and Electrical Distribution Division
5120-00-156-8609S21 INTERCHANGEABLE
Die,crimping Tool
Souriau Usa, Inc. Dba Souriau Usa Inc
3460-00-189-9132 INTERCHANGEABLE
Holder,cutting Tool
5130-00-293-1411IM302A INTERCHANGEABLE
Socket,socket Wrench
Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
1650-00-310-212120020-248-100 INTERCHANGEABLE
Filtering Disk,fluid
Pall Aeropower Corp Sub of Pall Corp Mectron Industries Div
4810-00-325-3197S-21-INTERNAL#0319079 INTERCHANGEABLE
Seat,valve
Sloan Valve Company
5315-00-360-81645307504 INTERCHANGEABLE
Pin,straight,headless
U S Army Tank Automotive Command Amsta-Im-Mm
3110-00-690-8923LM501349-LM501310 INTERCHANGEABLE
Bearing,roller,tapered
The Timken Corporation
9905-00-721-8291S2-1B INTERCHANGEABLE
Sign,traffic
Federal Prison Industries, Inc - Ebg
4820-01-083-4420 INTERCHANGEABLE
Valve,safety Relief
Cross-Reference Index
Part NumberManufacturer
638948 Union Carbide Corp Sub of Dow Co the (USA)
638948 L-Tec Welding and Cutting Systems (USA)
638948 PRIMARY Esab Group, Inc., the Dba Esab Welding and Cutting Products Div Esab Welding and Cuttng (USA)
S21 PRIMARY Uniweld Products, Inc. Dba Uniweld Products Inc (USA)
10X22 Union Carbide Corp Sub of Dow Co the (USA)
Related Parts
6680-00-053-3961INTERCHANGEABLE
PLUG,SIGHT
S21
5120-00-156-8609INTERCHANGEABLE
DIE,CRIMPING TOOL
S21
3460-00-189-9132INTERCHANGEABLE
HOLDER,CUTTING TOOL
5130-00-293-1411INTERCHANGEABLE
SOCKET,SOCKET WRENCH
IM302A
1650-00-310-2121INTERCHANGEABLE
FILTERING DISK,FLUID
20020-248-100
4810-00-325-3197INTERCHANGEABLE
SEAT,VALVE
S-21-INTERNAL#0319079
5315-00-360-8164INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
5307504
3110-00-690-8923INTERCHANGEABLE
BEARING,ROLLER,TAPERED
LM501349-LM501310
9905-00-721-8291INTERCHANGEABLE
SIGN,TRAFFIC
S2-1B
4820-01-083-4420INTERCHANGEABLE
VALVE,SAFETY RELIEF
4730-01-128-5241INTERCHANGEABLE
STRAINER ELEMENT,SEDIMENT
20020-325-100
4730-01-130-5476INTERCHANGEABLE
STRAINER ELEMENT,SEDIMENT
S21-355-100

Frequently Asked Questions

What is NSN 3433-00-355-6243?

NSN 3433-00-355-6243 is a Tip,welding Torch, manufactured by Esab Group, Inc., the Dba Esab Welding and Cutting Products Div Esab Welding and Cuttng, classified under FSC 3433 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3433-00-355-6243?

NSN 3433-00-355-6243 has 5 cross-referenced part numbers: 638948 (Union Carbide Corp Sub of Dow Co the), 638948 (L-Tec Welding and Cutting Systems), 638948 (Esab Group, Inc., the Dba Esab Welding and Cutting Products Div Esab Welding and Cuttng), S21 (Uniweld Products, Inc. Dba Uniweld Products Inc), 10X22 (Union Carbide Corp Sub of Dow Co the).

What NSN replaces 3433-00-355-6243?

There are 12 known substitutes for 3433-00-355-6243: 6680-00-053-3961, 5120-00-156-8609, 3460-00-189-9132 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 638948?

Key specifications for 638948: Material: COPPER ALLOY; Style Designator: ONE PIECE; Attachment Method: THREAD; Special Features: NO.1A FINE TIP A. 5 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3433-00-355-6243 still in active supply?

NSN 3433-00-355-6243 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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