PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

61-128Wrench,open End

Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc. · NSN 5120-00-240-5609 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-240-5609 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-240-5609. Primary manufacturer part number: 61-128.
Features
  • Wrench,open End — FSC 5120
  • Style Designator: DOUBLE HEAD
  • Wrenching Surface Size: 0.750 INCHES NOMINAL FIRST END IN
  • Wrenching Surface Size: 0.875 INCHES NOMINAL SECOND END IN
  • Surface Treatment: CHROMIUM OVERALL
  • Nondefinitive Spec/std Data: 1 TYPE
  • Hardness Rating: 40.0 ROCKWELL C MINIMUM AND 54.0 ROCKWELL C MAXIMUM
  • Wrenching Surface Shape: OVAL BOTH ENDS INTERNAL
Applications
  • Applications requiring Steel Overall construction
General Description

The Wrench,open End, cataloged under National Stock Number 5120-00-240-5609, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc.. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 29 commercial cross-references from 20 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5120-00-240-5609
Primary Part Number61-128
Item NameWrench,open End
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerEasco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc.
StatusCANCELLED
Style DesignatorDOUBLE HEAD
Wrenching Surface Size0.750 INCHES NOMINAL FIRST END IN
Wrenching Surface Size0.875 INCHES NOMINAL SECOND END IN
Surface TreatmentCHROMIUM OVERALL
Nondefinitive Spec/std Data1 TYPE
Hardness Rating40.0 ROCKWELL C MINIMUM AND 54.0 ROCKWELL C MAXIMUM
Wrenching Surface ShapeOVAL BOTH ENDS INTERNAL
Specification/standard Data05047-ASME B107.100 CAT 39 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Large End Head Angle15.0 DEGREES NOMINAL
Small End Head Angle15.0 DEGREES NOMINAL
MaterialSTEEL OVERALL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
4920-00-066-970326-124 INTERCHANGEABLE
Packing
Topworx Inc
5950-00-081-80301328 INTERCHANGEABLE
Saturable Reactor
Precision Electronics, Inc
3110-00-100-0346 INTERCHANGEABLE
Cup,tapered Roller Bearing
5950-00-163-21721328 INTERCHANGEABLE
Transformer,special
S and H Industries
5330-00-245-3715 INTERCHANGEABLE
Seal,plain Encased
5945-00-259-1890SM1199-2 INTERCHANGEABLE
Relay,electromagnetic
Te Connectivity Corporation
4920-00-345-89861328 INTERCHANGEABLE
Gage Kit,inspection
Mcmaster-Carr Supply Co
2910-00-384-0669116185 INTERCHANGEABLE
Shaft and Lever
Am General Llc
5330-00-399-69194004061 INTERCHANGEABLE
Gasket
Agco Corp Parts Opn
5962-00-438-4170350-3039-010 INTERCHANGEABLE
Integrated Circuit,
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
Cross-Reference Index
Part NumberManufacturer
61-128 Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc. (USA)
61-128 Apex Tool Group, Llc Dba Nicholson (USA)
B107.39 The American Society of Mechanical Engineers (USA)
11655789-4 U S Army Tank Automotive Command Amsta-Im-Mm (USA)
S2428 Sna Germany Gmbh (DEU)
26-124 Apex Tool Group, Llc Dba Nicholson (USA)
S2428 Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
1328 Wright Tool Company, Llc (USA)
26-124 Armstrong Bros Tool Co (USA)
1731A Bonney Forge Corp (USA)
2111484 General Motors Corp (USA)
B107.100 CAT 39 TY1CL1 General Services Administration Federal Supply Service (USA)
B107.39 TY1CL1 General Services Administration Federal Supply Service (USA)
11655789-4 Fnss Savunma Sistemleri Anonim Sirketi (TUR)
1731A Martin Sprocket and Gear Inc (USA)
2111484 Military Vehicles Opn General Motors Truck and Bus Group Ms 2603-02 (USA)
26-124 Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc. (USA)
GV02428 Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
B107.6 The American Society of Mechanical Engineers (USA)
B107.100 CAT 39 TY1 General Services Administration Federal Supply Service (USA)
Related Parts
4920-00-066-9703INTERCHANGEABLE
PACKING
26-124
5950-00-081-8030INTERCHANGEABLE
SATURABLE REACTOR
1328
3110-00-100-0346INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
5950-00-163-2172INTERCHANGEABLE
TRANSFORMER,SPECIAL
1328
5330-00-245-3715INTERCHANGEABLE
SEAL,PLAIN ENCASED
5945-00-259-1890INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
SM1199-2
4920-00-345-8986INTERCHANGEABLE
GAGE KIT,INSPECTION
1328
2910-00-384-0669INTERCHANGEABLE
SHAFT AND LEVER
116185
5330-00-399-6919INTERCHANGEABLE
GASKET
4004061
5962-00-438-4170INTERCHANGEABLE
INTEGRATED CIRCUIT,
350-3039-010
9540-00-528-8756INTERCHANGEABLE
BEAM,STRUCTURAL
60-4254
5940-00-539-3704INTERCHANGEABLE
TERMINAL,STUD
013-1014-59-9

Frequently Asked Questions

What is NSN 5120-00-240-5609?

NSN 5120-00-240-5609 is a Wrench,open End, manufactured by Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc., classified under FSC 5120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5120-00-240-5609?

NSN 5120-00-240-5609 has 29 cross-referenced part numbers: 61-128 (Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc.), 61-128 (Apex Tool Group, Llc Dba Nicholson), B107.39 (The American Society of Mechanical Engineers), 11655789-4 (U S Army Tank Automotive Command Amsta-Im-Mm), S2428 (Sna Germany Gmbh) and 24 more.

What NSN replaces 5120-00-240-5609?

There are 12 known substitutes for 5120-00-240-5609: 4920-00-066-9703, 5950-00-081-8030, 3110-00-100-0346 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 61-128?

Key specifications for 61-128: Style Designator: DOUBLE HEAD; Special Features: FORGED STEEL; Overall Length: 8.265 INCHES MINIMUM IN; Wrenching Surface Size: 0.750 INCHES NOMINAL FIRST END IN. 13 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-00-240-5609 still in active supply?

NSN 5120-00-240-5609 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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