PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21021Welding Powder,metallic Overlay

Mg Industries Welding Products Div · NSN 3439-01-191-5053 · FSC 3439 · No Item Name Available
Verified by PartsTable
NSN 3439-01-191-5053 — this item is cataloged by the U.S. Government under National Stock Number 3439-01-191-5053. Primary manufacturer part number: 21021.
Features
  • Welding Powder,metallic Overlay — FSC 3439
  • Material: NICKEL AND ALUMINUM AND MOLYBDENUM BASIC
  • 2 verified cross-references
  • Primary manufacturer: Mg Industries Welding Products Div
Applications
  • Applications requiring Nickel and Aluminum and Molybdenum Basic construction
General Description

The Welding Powder,metallic Overlay, cataloged under National Stock Number 3439-01-191-5053, is classified within Federal Supply Class 3439 (No Item Name Available) of the Metalworking Machinery (continued) group. The primary manufacturer of record is Mg Industries Welding Products Div. Government technical data includes 1 verified specification, 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3439-01-191-5053
Primary Part Number21021
Item NameWelding Powder,metallic Overlay
FSC / FSG3439 / 34 — No Item Name Available
ManufacturerMg Industries Welding Products Div
StatusACTIVE
MaterialNICKEL AND ALUMINUM AND MOLYBDENUM BASIC
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3010-00-082-1093921021 INTERCHANGEABLE
Parts Kit,disk Ring
Rexnord Industries, Llc Div Couplings Division
2990-00-142-02331916 INTERCHANGEABLE
Muffler,exhaust
Arvin Industries Inc
7510-00-224-767621021 INTERCHANGEABLE
Inking Pad,rubber Stamp
Avery Label
5330-00-292-1425 INTERCHANGEABLE
Gasket
5315-00-298-9161MS20066-122 INTERCHANGEABLE
Key,machine
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
4810-00-738-635821021 INTERCHANGEABLE
Valve,solenoid
Rocker Solenoid Co Dba Rocker Solenoid Co
5930-00-792-277403-73008 PIECE 13 INTERCHANGEABLE
Switch,push
R S P Industries Inc
3110-00-853-44446306-2ZJEM INTERCHANGEABLE
Bearing,ball,annular
Skf Usa Inc.
5940-00-983-6097 INTERCHANGEABLE
Terminal Board
3020-01-069-073821021 INTERCHANGEABLE
Gear,secondary Plan
Paccar Winch Inc Dba Paccar Winch Division
Cross-Reference Index
Part NumberManufacturer
21021 PRIMARY Mg Industries Welding Products Div (USA)
21021 Eutectic Corp (USA)
Related Parts
3010-00-082-1093INTERCHANGEABLE
PARTS KIT,DISK RING
921021
2990-00-142-0233INTERCHANGEABLE
MUFFLER,EXHAUST
1916
7510-00-224-7676INTERCHANGEABLE
INKING PAD,RUBBER STAMP
21021
5330-00-292-1425INTERCHANGEABLE
GASKET
5315-00-298-9161INTERCHANGEABLE
KEY,MACHINE
MS20066-122
4810-00-738-6358INTERCHANGEABLE
VALVE,SOLENOID
21021
5930-00-792-2774INTERCHANGEABLE
SWITCH,PUSH
03-73008 PIECE 13
3110-00-853-4444INTERCHANGEABLE
BEARING,BALL,ANNULAR
6306-2ZJEM
5940-00-983-6097INTERCHANGEABLE
TERMINAL BOARD
3020-01-069-0738INTERCHANGEABLE
GEAR,SECONDARY PLAN
21021
7035-01-095-3145INTERCHANGEABLE
PANEL,ELECTROLUMINE
21021
5962-01-134-7979INTERCHANGEABLE
MICROCIRCUIT,DIGITAL

Frequently Asked Questions

What is NSN 3439-01-191-5053?

NSN 3439-01-191-5053 is a Welding Powder,metallic Overlay, manufactured by Mg Industries Welding Products Div, classified under FSC 3439 (No Item Name Available). Status: active.

What are the part numbers for NSN 3439-01-191-5053?

NSN 3439-01-191-5053 has 2 cross-referenced part numbers: 21021 (Mg Industries Welding Products Div), 21021 (Eutectic Corp).

What NSN replaces 3439-01-191-5053?

There are 12 known substitutes for 3439-01-191-5053: 3010-00-082-1093, 2990-00-142-0233, 7510-00-224-7676 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21021?

Key specifications for 21021: Material: NICKEL AND ALUMINUM AND MOLYBDENUM BASIC; Special Features: FINE PARTICAL EROSION RESISTANCE. 2 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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