PartsTable TECHNICAL DATA SHEET
AUGUST 2026Technical Data Sheet

PH0SSILVER6Brazing Alloy,silver

Northrop Grumman Systems Corporation · NSN 3439-00-411-2338 · FSC 3439 · No Item Name Available
Verified by PartsTable
NSN 3439-00-411-2338 — this item is cataloged by the U.S. Government under National Stock Number 3439-00-411-2338. Primary manufacturer part number: PH0SSILVER6.
Features
  • Brazing Alloy,silver — FSC 3439
  • Width: 0.125 INCHES NOMINAL IN
  • Nondefinitive Spec/std Data: FS-BCUP-3 COMPOSITION
  • Chemical Composition Percentage: COPPER 87.75; PHOSPHORUS 6.25; SILVER 6
  • Physical Form: STRIP
  • Precious Material and Location: INTEGRAL SILVER
  • Thickness: 0.050 INCHES NOMINAL IN
  • Flux Feature: NOT INCLUDED
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Brazing Alloy,silver, cataloged under National Stock Number 3439-00-411-2338, is classified within Federal Supply Class 3439 (No Item Name Available) of the Metalworking Machinery (continued) group. The primary manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 6 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
NSN3439-00-411-2338
Primary Part NumberPH0SSILVER6
Item NameBrazing Alloy,silver
FSC / FSG3439 / 34 — No Item Name Available
ManufacturerNorthrop Grumman Systems Corporation
StatusACTIVE
Width0.125 INCHES NOMINAL IN
Nondefinitive Spec/std DataFS-BCUP-3 COMPOSITION
Chemical Composition PercentageCOPPER 87.75; PHOSPHORUS 6.25; SILVER 6
Physical FormSTRIP
Precious Material and LocationINTEGRAL SILVER
Thickness0.050 INCHES NOMINAL IN
Flux FeatureNOT INCLUDED
Length20.000 INCHES NOMINAL IN
Precious MaterialSILVER
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3439-00-018-1684BAG-7,1/16IN.DIA INTERCHANGEABLE
Brazing Alloy,silver Solder,kit
American Welding Society, Inc.
3439-00-052-1899AWSA5.8-92 BCUP-5-0.063 INTERCHANGEABLE
Brazing Alloy,silver
American Welding Society, Inc.
3439-00-188-69823132 INTERCHANGEABLE
Brazing Alloy,copper
Alter Harry Co the Div of T E C
3439-00-188-6983 INTERCHANGEABLE
Brazing Alloy,copper
3439-00-204-2555 INTERCHANGEABLE
Brazing Alloy,copper
3439-00-224-3580AWSA5.8-92 BCUP-5 INTERCHANGEABLE
Brazing Alloy,silver
American Welding Society, Inc.
3439-00-262-4174 INTERCHANGEABLE
Brazing Alloy,copper
3439-00-262-4203 INTERCHANGEABLE
Brazing Alloy,copper
3439-00-262-4210AWSA5.8-92 BCUP-2-0.063 INTERCHANGEABLE
Brazing Alloy,copper
American Welding Society, Inc.
3439-00-262-4211AWSA5.8-92 INTERCHANGEABLE
Brazing Alloy,copper
American Welding Society, Inc.
Cross-Reference Index
Part NumberManufacturer
PH0SSILVER6 Northrop Grumman Systems Corporation (USA)
AWS A5.8-92 American Welding Society, Inc. (USA)
GB6 N L Industries Inc Goldsmith Precious Metals Div (USA)
PH0S0N6 United Wire Goods Mfg Co Inc (USA)
QQB650 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
AWS A5.8 American Welding Society, Inc. (USA)
STAYSILV6 J. W. Harris Co., Inc. (USA)
Related Parts
3439-00-018-1684INTERCHANGEABLE
BRAZING ALLOY,SILVER SOLDER,KIT
BAG-7,1/16IN.DIA
3439-00-052-1899INTERCHANGEABLE
BRAZING ALLOY,SILVER
AWSA5.8-92 BCUP-5-0.063
3439-00-188-6982INTERCHANGEABLE
BRAZING ALLOY,COPPER
3132
3439-00-188-6983INTERCHANGEABLE
BRAZING ALLOY,COPPER
3439-00-204-2555INTERCHANGEABLE
BRAZING ALLOY,COPPER
3439-00-224-3580INTERCHANGEABLE
BRAZING ALLOY,SILVER
AWSA5.8-92 BCUP-5
3439-00-262-4174INTERCHANGEABLE
BRAZING ALLOY,COPPER
3439-00-262-4203INTERCHANGEABLE
BRAZING ALLOY,COPPER
3439-00-262-4210INTERCHANGEABLE
BRAZING ALLOY,COPPER
AWSA5.8-92 BCUP-2-0.063
3439-00-262-4211INTERCHANGEABLE
BRAZING ALLOY,COPPER
AWSA5.8-92
3439-00-262-4212INTERCHANGEABLE
BRAZING ALLOY,COPPER
AWSA5.8-92 BCUP-2-0.125
3439-01-268-0532INTERCHANGEABLE
BRAZING ALLOY,SILVER
AWSA5.8-92 BCUP-3

Frequently Asked Questions

What is NSN 3439-00-411-2338?

NSN 3439-00-411-2338 is a Brazing Alloy,silver, manufactured by Northrop Grumman Systems Corporation, classified under FSC 3439 (No Item Name Available). Status: active.

What are the part numbers for NSN 3439-00-411-2338?

NSN 3439-00-411-2338 has 7 cross-referenced part numbers: PH0SSILVER6 (Northrop Grumman Systems Corporation), AWS A5.8-92 (American Welding Society, Inc.), GB6 (N L Industries Inc Goldsmith Precious Metals Div), PH0S0N6 (United Wire Goods Mfg Co Inc), QQB650 (Federal Specifications Promulgated by General Services Administration Washington DC) and 2 more.

What NSN replaces 3439-00-411-2338?

There are 12 known substitutes for 3439-00-411-2338: 3439-00-018-1684, 3439-00-052-1899, 3439-00-188-6982 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of PH0SSILVER6?

Key specifications for PH0SSILVER6: Width: 0.125 INCHES NOMINAL IN; Nondefinitive Spec/std Data: FS-BCUP-3 COMPOSITION; Chemical Composition Percentage: COPPER 87.75; PHOSPHORUS 6.25; SILVER 6; Physical Form: STRIP. 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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