PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AWS A5.21Rod,welding

American Welding Society, Inc. · NSN 3439-00-542-0411 · FSC 3439 · No Item Name Available
Verified by PartsTable
NSN 3439-00-542-0411 — this item is cataloged by the U.S. Government under National Stock Number 3439-00-542-0411. Primary manufacturer part number: AWS A5.21.
Features
  • Rod,welding — FSC 3439
  • Outside Diameter: 0.250 INCHES NOMINAL IN
  • Process Type for Which Designed: OXYACETYLENE
  • Shape: ROUND
  • Material Document and Classification: MIL-R-17131,TY MIL-RNICR-C-1 MIL SPEC SINGLE MATERIAL RESPONSE FILLER
  • Nondefinitive Spec/std Data: ROD FORM AND 1/4 SIZE AND MIL-RNICR-C-1 TYPE
  • Material: NICKEL ALLOY FILLER
  • Weld Position for Which Designed: ALL POSITIONS
Applications
  • Applications requiring Nickel Alloy Filler construction
General Description

The Rod,welding, cataloged under National Stock Number 3439-00-542-0411, is classified within Federal Supply Class 3439 (No Item Name Available) of the Metalworking Machinery (continued) group. The primary manufacturer of record is American Welding Society, Inc.. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3439-00-542-0411
Primary Part NumberAWS A5.21
Item NameRod,welding
FSC / FSG3439 / 34 — No Item Name Available
ManufacturerAmerican Welding Society, Inc.
StatusACTIVE
Outside Diameter0.250 INCHES NOMINAL IN
Process Type for Which DesignedOXYACETYLENE
ShapeROUND
Material Document and ClassificationMIL-R-17131,TY MIL-RNICR-C-1 MIL SPEC SINGLE MATERIAL RESPONSE FILLER
Nondefinitive Spec/std DataROD FORM AND 1/4 SIZE AND MIL-RNICR-C-1 TYPE
MaterialNICKEL ALLOY FILLER
Weld Position for Which DesignedALL POSITIONS
Physical FormSTRAIGHT
Length12.000 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
3439-00-065-8478 INTERCHANGEABLE
Rod,welding
3439-00-277-2107 INTERCHANGEABLE
Rod,welding
3439-00-542-0412 INTERCHANGEABLE
Rod,welding
3439-01-022-5848AWSA5.13-70 RCOCR-A 1/8 INTERCHANGEABLE
Rod,welding
American Welding Society, Inc.
3439-01-376-9906 INTERCHANGEABLE
Rod,welding
3439-01-377-0073 INTERCHANGEABLE
Rod,welding
Cross-Reference Index
Part NumberManufacturer
AWS A5.21 American Welding Society, Inc. (USA)
MIL-R-17131 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
3439-00-065-8478INTERCHANGEABLE
ROD,WELDING
3439-00-277-2107INTERCHANGEABLE
ROD,WELDING
3439-00-542-0412INTERCHANGEABLE
ROD,WELDING
3439-01-022-5848INTERCHANGEABLE
ROD,WELDING
AWSA5.13-70 RCOCR-A 1/8
3439-01-376-9906INTERCHANGEABLE
ROD,WELDING
3439-01-377-0073INTERCHANGEABLE
ROD,WELDING

Frequently Asked Questions

What is NSN 3439-00-542-0411?

NSN 3439-00-542-0411 is a Rod,welding, manufactured by American Welding Society, Inc., classified under FSC 3439 (No Item Name Available). Status: active.

What are the part numbers for NSN 3439-00-542-0411?

NSN 3439-00-542-0411 has 2 cross-referenced part numbers: AWS A5.21 (American Welding Society, Inc.), MIL-R-17131 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 3439-00-542-0411?

There are 6 known substitutes for 3439-00-542-0411: 3439-00-065-8478, 3439-00-277-2107, 3439-00-542-0412 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AWS A5.21?

Key specifications for AWS A5.21: Outside Diameter: 0.250 INCHES NOMINAL IN; Process Type for Which Designed: OXYACETYLENE; Shape: ROUND; Material Document and Classification: MIL-R-17131,TY MIL-RNICR-C-1 MIL SPEC SINGLE MATERIAL RESPONSE FILLER. 9 total characteristics are documented in the Federal Logistics Information System.

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