PartsTable TECHNICAL DATA SHEET
AUGUST 2026Technical Data Sheet

AWSA5.8-92 BCUP-5Brazing Alloy,silver

American Welding Society, Inc. · NSN 3439-00-077-1417 · FSC 3439 · No Item Name Available
Verified by PartsTable
NSN 3439-00-077-1417 — this item is cataloged by the U.S. Government under National Stock Number 3439-00-077-1417. Primary manufacturer part number: AWSA5.8-92 BCUP-5.
Features
  • Brazing Alloy,silver — FSC 3439
  • Flux Feature: NOT INCLUDED
  • Chemical Composition Percentage: SILVER 15; COPPER 80; PHOSPHORUS 5
  • Precious Material and Location: INTEGRAL SILVER
  • Precious Material: SILVER
  • Diameter: 0.188 INCHES NOMINAL IN
  • Length: 36.000 INCHES NOMINAL IN
  • 5 verified cross-references
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Brazing Alloy,silver, cataloged under National Stock Number 3439-00-077-1417, 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 6 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3439-00-077-1417
Primary Part NumberAWSA5.8-92 BCUP-5
Item NameBrazing Alloy,silver
FSC / FSG3439 / 34 — No Item Name Available
ManufacturerAmerican Welding Society, Inc.
StatusACTIVE
Flux FeatureNOT INCLUDED
Chemical Composition PercentageSILVER 15; COPPER 80; PHOSPHORUS 5
Precious Material and LocationINTEGRAL SILVER
Precious MaterialSILVER
Diameter0.188 INCHES NOMINAL IN
Length36.000 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
3439-00-224-3580AWSA5.8-92 BCUP-5 INTERCHANGEABLE
Brazing Alloy,silver
American Welding Society, Inc.
Cross-Reference Index
Part NumberManufacturer
PHOSON 15 United Wire and Supply Corp (USA)
AIRCOSIL NO. 15 Polarad Electronics Corp Radiometrics Div (USA)
AWSA5.8-81 BCUP-5 0.188 American Welding Society, Inc. (USA)
AWSA5.8-92 BCUP-5 PRIMARY American Welding Society, Inc. (USA)
SILF0S 3/16 DIA 36 Handy & Harman (USA)
Related Parts
3439-00-224-3580INTERCHANGEABLE
BRAZING ALLOY,SILVER
AWSA5.8-92 BCUP-5

Frequently Asked Questions

What is NSN 3439-00-077-1417?

NSN 3439-00-077-1417 is a Brazing Alloy,silver, manufactured by American Welding Society, Inc., classified under FSC 3439 (No Item Name Available). Status: active.

What are the part numbers for NSN 3439-00-077-1417?

NSN 3439-00-077-1417 has 5 cross-referenced part numbers: PHOSON 15 (United Wire and Supply Corp), AIRCOSIL NO. 15 (Polarad Electronics Corp Radiometrics Div), AWSA5.8-81 BCUP-5 0.188 (American Welding Society, Inc.), AWSA5.8-92 BCUP-5 (American Welding Society, Inc.), SILF0S 3/16 DIA 36 (Handy & Harman).

What NSN replaces 3439-00-077-1417?

There is 1 known substitute for 3439-00-077-1417: 3439-00-224-3580. Verify interchangeability with system specifications before substitution.

What are the specifications of AWSA5.8-92 BCUP-5?

Key specifications for AWSA5.8-92 BCUP-5: Flux Feature: NOT INCLUDED; Chemical Composition Percentage: SILVER 15; COPPER 80; PHOSPHORUS 5; Precious Material and Location: INTEGRAL SILVER; Precious Material: SILVER. 6 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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