PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

K35521Wrench,open End

The Boeing Company · NSN 5120-00-184-8565 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-184-8565 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-184-8565. Primary manufacturer part number: K35521.
Features
  • Wrench,open End — FSC 5120
  • Small End Head Angle: 15.0 DEGREES NOMINAL
  • Large End Head Angle: 15.0 DEGREES NOMINAL
  • Offset Height: 0.188 INCHES NOMINAL IN
  • Wrenching Surface Size: 1.625 INCHES NOMINAL SECOND END IN
  • Wrenching Surface Size: 1.562 INCHES NOMINAL FIRST END IN
  • Material: STEEL OVERALL
  • Specification/standard Data: 05047-ASME B107.100 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Applications
  • Applications requiring Steel Overall construction
General Description

The Wrench,open End, cataloged under National Stock Number 5120-00-184-8565, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is The Boeing Company. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5120-00-184-8565
Primary Part NumberK35521
Item NameWrench,open End
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerThe Boeing Company
StatusCANCELLED
Small End Head Angle15.0 DEGREES NOMINAL
Large End Head Angle15.0 DEGREES NOMINAL
Offset Height0.188 INCHES NOMINAL IN
Wrenching Surface Size1.625 INCHES NOMINAL SECOND END IN
Wrenching Surface Size1.562 INCHES NOMINAL FIRST END IN
MaterialSTEEL OVERALL
Specification/standard Data05047-ASME B107.100 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Surface TreatmentNICKEL AND CHROMIUM OVERALL
Style DesignatorTHIN DOUBLE HEAD, DOUBLE OFFSET BOTH ENDS
Small End Head Thickness0.188 INCHES NOMINAL IN
Large End Head Thickness0.188 INCHES NOMINAL IN
Wrenching Surface ShapeOVAL BOTH ENDS INTERNAL
Nondefinitive Spec/std Data1 TYPE AND 2 CLASS
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
5120-00-184-8560 INTERCHANGEABLE
Wrench,open End
5120-00-184-8563 INTERCHANGEABLE
Wrench,open End
5120-00-184-8572ST00188-35 INTERCHANGEABLE
Wrench,open End
Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company
5120-01-428-8247 INTERCHANGEABLE
Wrench,open End
5120-01-428-8284 INTERCHANGEABLE
Wrench,open End
Cross-Reference Index
Part NumberManufacturer
B107.39 TY1CL2 General Services Administration Federal Supply Service (USA)
GGG-W-636 TY15 General Services Administration Federal Supply Service (USA)
B107.100 The American Society of Mechanical Engineers (USA)
GGG-W-636 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
B107.39 The American Society of Mechanical Engineers (USA)
AN8505-21 Aeronautical Standards Group Dept of Navy and Air Force (USA)
A-A-1351 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
K35521 PRIMARY The Boeing Company (USA)
K35521 The Boeing Company (USA)
Related Parts
5120-00-184-8560INTERCHANGEABLE
WRENCH,OPEN END
5120-00-184-8563INTERCHANGEABLE
WRENCH,OPEN END
5120-00-184-8572INTERCHANGEABLE
WRENCH,OPEN END
ST00188-35
5120-01-428-8247INTERCHANGEABLE
WRENCH,OPEN END
5120-01-428-8284INTERCHANGEABLE
WRENCH,OPEN END

Frequently Asked Questions

What is NSN 5120-00-184-8565?

NSN 5120-00-184-8565 is a Wrench,open End, manufactured by The Boeing Company, classified under FSC 5120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5120-00-184-8565?

NSN 5120-00-184-8565 has 9 cross-referenced part numbers: B107.39 TY1CL2 (General Services Administration Federal Supply Service), GGG-W-636 TY15 (General Services Administration Federal Supply Service), B107.100 (The American Society of Mechanical Engineers), GGG-W-636 (Federal Specifications Promulgated by General Services Administration Washington DC), B107.39 (The American Society of Mechanical Engineers) and 4 more.

What NSN replaces 5120-00-184-8565?

There are 5 known substitutes for 5120-00-184-8565: 5120-00-184-8560, 5120-00-184-8563, 5120-00-184-8572 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of K35521?

Key specifications for K35521: Small End Head Angle: 15.0 DEGREES NOMINAL; Large End Head Angle: 15.0 DEGREES NOMINAL; Offset Height: 0.188 INCHES NOMINAL IN; Wrenching Surface Size: 1.625 INCHES NOMINAL SECOND END IN. 15 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-00-184-8565 still in active supply?

NSN 5120-00-184-8565 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.
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