PartsTable TECHNICAL DATA SHEET
AUGUST 2026Technical Data Sheet

AWS A5.8Brazing Alloy,silver

American Welding Society, Inc. · NSN 3439-00-262-4191 · FSC 3439 · No Item Name Available
Verified by PartsTable
NSN 3439-00-262-4191 — this item is cataloged by the U.S. Government under National Stock Number 3439-00-262-4191. Primary manufacturer part number: AWS A5.8.
Features
  • Brazing Alloy,silver — FSC 3439
  • Length: 660.000 INCHES NOMINAL IN
  • Precious Material and Location: INTEGRAL SILVER
  • Flux Feature: NOT INCLUDED
  • Physical Form: WIRE
  • Precious Material: SILVER
  • Diameter: 0.063 INCHES NOMINAL IN
  • Chemical Composition Percentage: SILVER 51; CADMIUM 17; COPPER 16.5; ZINC 17.5; NICKEL 3.5; OTHERS 0.15
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Brazing Alloy,silver, cataloged under National Stock Number 3439-00-262-4191, 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 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3439-00-262-4191
Primary Part NumberAWS A5.8
Item NameBrazing Alloy,silver
FSC / FSG3439 / 34 — No Item Name Available
ManufacturerAmerican Welding Society, Inc.
StatusCANCELLED
Length660.000 INCHES NOMINAL IN
Precious Material and LocationINTEGRAL SILVER
Flux FeatureNOT INCLUDED
Physical FormWIRE
Precious MaterialSILVER
Diameter0.063 INCHES NOMINAL IN
Chemical Composition PercentageSILVER 51; CADMIUM 17; COPPER 16.5; ZINC 17.5; NICKEL 3.5; OTHERS 0.15
Precious Material and Weight0.510 SILVER OUNCES, TROY
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
3439-00-052-1899AWSA5.8-92 BCUP-5-0.063 INTERCHANGEABLE
Brazing Alloy,silver
American Welding Society, Inc.
3439-00-184-8952 INTERCHANGEABLE
Brazing Alloy,silver
3439-00-781-5197 INTERCHANGEABLE
Brazing Alloy,silver
Cross-Reference Index
Part NumberManufacturer
AWS A5.8 American Welding Society, Inc. (USA)
870742-00 Defense Reduction Agency (USA)
QQ-B-654 GRADE 5WIRE 0.063 IN General Services Administration Federal Supply Service (USA)
GRADE V 0.063 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
QQ-B-654 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
MILB15395 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
3439-00-052-1899INTERCHANGEABLE
BRAZING ALLOY,SILVER
AWSA5.8-92 BCUP-5-0.063
3439-00-184-8952INTERCHANGEABLE
BRAZING ALLOY,SILVER
3439-00-781-5197INTERCHANGEABLE
BRAZING ALLOY,SILVER

Frequently Asked Questions

What is NSN 3439-00-262-4191?

NSN 3439-00-262-4191 is a Brazing Alloy,silver, manufactured by American Welding Society, Inc., classified under FSC 3439 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3439-00-262-4191?

NSN 3439-00-262-4191 has 6 cross-referenced part numbers: AWS A5.8 (American Welding Society, Inc.), 870742-00 (Defense Reduction Agency), QQ-B-654 GRADE 5WIRE 0.063 IN (General Services Administration Federal Supply Service), GRADE V 0.063 (Federal Specifications Promulgated by General Services Administration Washington DC), QQ-B-654 (Federal Specifications Promulgated by General Services Administration Washington DC) and 1 more.

What NSN replaces 3439-00-262-4191?

There are 3 known substitutes for 3439-00-262-4191: 3439-00-052-1899, 3439-00-184-8952, 3439-00-781-5197. Verify interchangeability with system specifications before substitution.

What are the specifications of AWS A5.8?

Key specifications for AWS A5.8: Length: 660.000 INCHES NOMINAL IN; Special Features: 5.50 FT PER TROY OUNCE FT; Precious Material and Location: INTEGRAL SILVER; Flux Feature: NOT INCLUDED. 9 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3439-00-262-4191 still in active supply?

NSN 3439-00-262-4191 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.
PartsTable Design LLC · partstable.com