PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

QQS571Solder,lead Alloy

Federal Specifications Promulgated by General Services Administration Washington DC · NSN 3439-00-105-9133 · FSC 3439 · No Item Name Available
Verified by PartsTable
NSN 3439-00-105-9133 — this item is cataloged by the U.S. Government under National Stock Number 3439-00-105-9133. Primary manufacturer part number: QQS571.
Features
  • Solder,lead Alloy — FSC 3439
  • Content Within Each Unit Package: 1 LB LBS
  • Wire Core Type: ACID
  • Nondefinitive Spec/std Data: SN40WAC+3 TYPE
  • Chemical Composition Percentage: LEAD 60.0; TIN 40.0
  • Diameter: 0.062 INCHES NOMINAL IN
  • 2 verified cross-references
  • Primary manufacturer: Federal Specifications Promulgated by General Services Administration Washington DC
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Solder,lead Alloy, cataloged under National Stock Number 3439-00-105-9133, is classified within Federal Supply Class 3439 (No Item Name Available) of the Metalworking Machinery (continued) group. The primary manufacturer of record is Federal Specifications Promulgated by General Services Administration Washington DC. Government technical data includes 5 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3439-00-105-9133
Primary Part NumberQQS571
Item NameSolder,lead Alloy
FSC / FSG3439 / 34 — No Item Name Available
ManufacturerFederal Specifications Promulgated by General Services Administration Washington DC
StatusACTIVE
Content Within Each Unit Package1 LB LBS
Wire Core TypeACID
Nondefinitive Spec/std DataSN40WAC+3 TYPE
Chemical Composition PercentageLEAD 60.0; TIN 40.0
Diameter0.062 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5930-00-007-9220 INTERCHANGEABLE
Switch,code Indicating Wheel
4810-00-093-5516737 INTERCHANGEABLE
Actuator,electromechanical,rotar
Sealco Air Controls Inc
3439-00-105-91282Z174 INTERCHANGEABLE
Solder,lead Alloy
W.w. Grainger, Inc. Div Government Sales Division
4820-00-275-2427 INTERCHANGEABLE
Valve,gate
5315-00-275-4784 INTERCHANGEABLE
Pin,straight,headless
6210-00-295-1609737 INTERCHANGEABLE
Lens,light
Westinghouse Electric Corp
5110-00-357-6788 INTERCHANGEABLE
Punch and Die Set,knockout
5975-00-372-3734TK128A INTERCHANGEABLE
Coupling,electrical Conduit
Abb Installation Products Inc
6240-00-470-76258632 INTERCHANGEABLE
Lamp,incandescent
Wiko Ltd
3441-00-531-1469101553-009 INTERCHANGEABLE
Punch,flare
Phi
Cross-Reference Index
Part NumberManufacturer
QQS571 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
737 Kester Inc (USA)
Related Parts
5930-00-007-9220INTERCHANGEABLE
SWITCH,CODE INDICATING WHEEL
4810-00-093-5516INTERCHANGEABLE
ACTUATOR,ELECTROMECHANICAL,ROTAR
737
3439-00-105-9128INTERCHANGEABLE
SOLDER,LEAD ALLOY
2Z174
4820-00-275-2427INTERCHANGEABLE
VALVE,GATE
5315-00-275-4784INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
6210-00-295-1609INTERCHANGEABLE
LENS,LIGHT
737
5110-00-357-6788INTERCHANGEABLE
PUNCH AND DIE SET,KNOCKOUT
5975-00-372-3734INTERCHANGEABLE
COUPLING,ELECTRICAL CONDUIT
TK128A
6240-00-470-7625INTERCHANGEABLE
LAMP,INCANDESCENT
8632
3441-00-531-1469INTERCHANGEABLE
PUNCH,FLARE
101553-009
5305-00-536-1567INTERCHANGEABLE
SCREW,HAIRSPRING ST
20000737
7510-00-787-2430INTERCHANGEABLE
PENCIL

Frequently Asked Questions

What is NSN 3439-00-105-9133?

NSN 3439-00-105-9133 is a Solder,lead Alloy, manufactured by Federal Specifications Promulgated by General Services Administration Washington DC, classified under FSC 3439 (No Item Name Available). Status: active.

What are the part numbers for NSN 3439-00-105-9133?

NSN 3439-00-105-9133 has 2 cross-referenced part numbers: QQS571 (Federal Specifications Promulgated by General Services Administration Washington DC), 737 (Kester Inc).

What NSN replaces 3439-00-105-9133?

There are 12 known substitutes for 3439-00-105-9133: 5930-00-007-9220, 4810-00-093-5516, 3439-00-105-9128 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of QQS571?

Key specifications for QQS571: Content Within Each Unit Package: 1 LB LBS; Wire Core Type: ACID; Nondefinitive Spec/std Data: SN40WAC+3 TYPE; Chemical Composition Percentage: LEAD 60.0; TIN 40.0. 5 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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