PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B107.66Wrench,ratchet

The American Society of Mechanical Engineers · NSN 5120-01-565-1304 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-565-1304 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-565-1304. Primary manufacturer part number: B107.66.
Features
  • Wrench,ratchet — FSC 5120
  • Wrenching Surface Shape: 12 POINT SECOND END INTERNAL
  • Surface Treatment: CHROMIUM OVERALL
  • Nondefinitive Spec/std Data: 2 TYPE
  • Specification/standard Data: 05047-ASME B107.100 CAT 66 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Features Provided: FULL POLISH
  • Wrenching Surface Size: 0.562 INCHES NOMINAL BOTH ENDS IN
  • Head Angle: 15.0 DEGREES NOMINAL
Applications
  • Applications requiring Steel Overall construction
General Description

The Wrench,ratchet, cataloged under National Stock Number 5120-01-565-1304, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is The American Society of Mechanical Engineers. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-01-565-1304
Primary Part NumberB107.66
Item NameWrench,ratchet
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerThe American Society of Mechanical Engineers
StatusACTIVE
Wrenching Surface Shape12 POINT SECOND END INTERNAL
Surface TreatmentCHROMIUM OVERALL
Nondefinitive Spec/std Data2 TYPE
Specification/standard Data05047-ASME B107.100 CAT 66 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Features ProvidedFULL POLISH
Wrenching Surface Size0.562 INCHES NOMINAL BOTH ENDS IN
Head Angle15.0 DEGREES NOMINAL
Wrenching Surface ShapeOVAL FIRST END INTERNAL
MaterialSTEEL OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5960-00-070-4399968958-1 INTERCHANGEABLE
Electron Tube
Honeywell International Inc. Dba Honeywell International Div Aerospace-Minneapolis
5210-00-204-9115DHG18.258 INTERCHANGEABLE
Gage,height
L.s. Starrett Company (the) Div Tool Division
5340-00-244-6636 INTERCHANGEABLE
Clevis,rod End
5325-00-732-77849018457 INTERCHANGEABLE
Insert,screw Thread
Us Army Aviation and Missile Command
4730-01-057-5089SAE J531 8 130109AC (CAD) INTERCHANGEABLE
Plug,pipe
Sae International Dba Sae International
5930-01-270-059739675 INTERCHANGEABLE
Switch Subassembly
Setra Systems, Inc. Dba Gems Sensors
5305-01-423-2405 INTERCHANGEABLE
Screw,cap,socket Head
Cross-Reference Index
Part NumberManufacturer
B107.66 The American Society of Mechanical Engineers (USA)
9018D Apex Tool Group, Llc Dba Nicholson (USA)
B107.100 CAT 66 TY2 General Services Administration Federal Supply Service (USA)
25-818 Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc. (USA)
B107.66 TY2 General Services Administration Federal Supply Service (USA)
25-818 Apex Tool Group, Llc Dba Nicholson (USA)
25-818 Armstrong Bros Tool Co (USA)
B107.100 The American Society of Mechanical Engineers (USA)
Related Parts
5960-00-070-4399INTERCHANGEABLE
ELECTRON TUBE
968958-1
5210-00-204-9115INTERCHANGEABLE
GAGE,HEIGHT
DHG18.258
5340-00-244-6636INTERCHANGEABLE
CLEVIS,ROD END
5325-00-732-7784INTERCHANGEABLE
INSERT,SCREW THREAD
9018457
4730-01-057-5089INTERCHANGEABLE
PLUG,PIPE
SAE J531 8 130109AC (CAD)
5930-01-270-0597INTERCHANGEABLE
SWITCH SUBASSEMBLY
39675
5305-01-423-2405INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD

Frequently Asked Questions

What is NSN 5120-01-565-1304?

NSN 5120-01-565-1304 is a Wrench,ratchet, manufactured by The American Society of Mechanical Engineers, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-01-565-1304?

NSN 5120-01-565-1304 has 8 cross-referenced part numbers: B107.66 (The American Society of Mechanical Engineers), 9018D (Apex Tool Group, Llc Dba Nicholson), B107.100 CAT 66 TY2 (General Services Administration Federal Supply Service), 25-818 (Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc.), B107.66 TY2 (General Services Administration Federal Supply Service) and 3 more.

What NSN replaces 5120-01-565-1304?

There are 7 known substitutes for 5120-01-565-1304: 5960-00-070-4399, 5210-00-204-9115, 5340-00-244-6636 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B107.66?

Key specifications for B107.66: Wrenching Surface Shape: 12 POINT SECOND END INTERNAL; Surface Treatment: CHROMIUM OVERALL; Nondefinitive Spec/std Data: 2 TYPE; Specification/standard Data: 05047-ASME B107.100 CAT 66 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD. 11 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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