PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

28-140Wrench,open End Box

Apex Tool Group, Llc Dba Nicholson · NSN 5120-00-601-9406 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-601-9406 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-601-9406. Primary manufacturer part number: 28-140.
Features
  • Wrench,open End Box — FSC 5120
  • Large End Head Thickness: 0.625 INCHES MAXIMUM IN
  • Wrenching Surface Size: 0.625 INCHES NOMINAL FIRST END IN
  • Wrenching Surface Size: 0.688 INCHES NOMINAL SECOND END IN
  • Specification/standard Data: 05047-ASME B107.100 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Wrenching Surface Shape: 6 POINT BOTH ENDS INTERNAL
  • Style Designator: FLARE NUT DOUBLE END
  • Material: STEEL OVERALL
Applications
  • Applications requiring Steel Overall construction
General Description

The Wrench,open End Box, cataloged under National Stock Number 5120-00-601-9406, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Apex Tool Group, Llc Dba Nicholson. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 13 commercial cross-references from 10 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
NSN5120-00-601-9406
Primary Part Number28-140
Item NameWrench,open End Box
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerApex Tool Group, Llc Dba Nicholson
StatusCANCELLED
Large End Head Thickness0.625 INCHES MAXIMUM IN
Wrenching Surface Size0.625 INCHES NOMINAL FIRST END IN
Wrenching Surface Size0.688 INCHES NOMINAL SECOND END IN
Specification/standard Data05047-ASME B107.100 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Wrenching Surface Shape6 POINT BOTH ENDS INTERNAL
Style DesignatorFLARE NUT DOUBLE END
MaterialSTEEL OVERALL
Nondefinitive Spec/std Data1 TYPE
Surface TreatmentCHROMIUM OVERALL
Small End Head Thickness0.625 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5220-00-004-571067-5-4 INTERCHANGEABLE
Gage and Plug Assembly,go
Parker-Hannifin Corporation Div Gas Turbine Fuel Systems
5330-00-083-771411060 INTERCHANGEABLE
Seal,plain Encased
Skf Usa Inc. Dba Skf Aerospace Sealing Solutions
5960-00-501-1127 INTERCHANGEABLE
Electron Tube
3020-00-517-2426H35B17X3/4IN.BORE INTERCHANGEABLE
Sprocket Wheel
Emerson Electric Co Browning Mfg Div
4030-00-599-85035514 INTERCHANGEABLE
Rod,anchor
Ngk-Locke, Inc.
5960-00-928-8115 INTERCHANGEABLE
Electron Tube
5120-00-953-340621C2404P014 INTERCHANGEABLE
Crowfoot Attachment,socket Wrenc
General Electric Company
5330-01-012-2336N28140 INTERCHANGEABLE
Gasket
Leslie Controls, Inc. Dba Leslie Controls Inc
4720-01-166-1087AH7 INTERCHANGEABLE
Hose Assembly,nonmetallic
Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
4820-01-288-79666754 INTERCHANGEABLE
Seat,valve
Coffin Turbo Pump Inc
Cross-Reference Index
Part NumberManufacturer
28-140 Apex Tool Group, Llc Dba Nicholson (USA)
28-140 Armstrong Bros Tool Co (USA)
6754 Granco Industries Inc (USA)
B107.40 TY1 General Services Administration Federal Supply Service (USA)
RXFS2022A Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
TG1-05-1-00 Critical Maritime Systems & Support Limited (GBR)
6754 Wta Tool Llc (USA)
28-140 Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc. (USA)
B107.100 The American Society of Mechanical Engineers (USA)
B107.40 The American Society of Mechanical Engineers (USA)
RXH2022S Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
1327 Herbrand Tools Corp (CAN)
TG-05-1-00 Critical Maritime Systems & Support Limited (GBR)
Related Parts
5220-00-004-5710INTERCHANGEABLE
GAGE AND PLUG ASSEMBLY,GO
67-5-4
5330-00-083-7714INTERCHANGEABLE
SEAL,PLAIN ENCASED
11060
5960-00-501-1127INTERCHANGEABLE
ELECTRON TUBE
3020-00-517-2426INTERCHANGEABLE
SPROCKET WHEEL
H35B17X3/4IN.BORE
4030-00-599-8503INTERCHANGEABLE
ROD,ANCHOR
5514
5960-00-928-8115INTERCHANGEABLE
ELECTRON TUBE
5120-00-953-3406INTERCHANGEABLE
CROWFOOT ATTACHMENT,SOCKET WRENC
21C2404P014
5330-01-012-2336INTERCHANGEABLE
GASKET
N28140
4720-01-166-1087INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
AH7
4820-01-288-7966INTERCHANGEABLE
SEAT,VALVE
6754
6515-01-356-0246INTERCHANGEABLE
HOOK,RECTAL
80-3510
4720-01-419-6474INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
6754-A08A06J-0240

Frequently Asked Questions

What is NSN 5120-00-601-9406?

NSN 5120-00-601-9406 is a Wrench,open End Box, manufactured by Apex Tool Group, Llc Dba Nicholson, classified under FSC 5120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5120-00-601-9406?

NSN 5120-00-601-9406 has 13 cross-referenced part numbers: 28-140 (Apex Tool Group, Llc Dba Nicholson), 28-140 (Armstrong Bros Tool Co), 6754 (Granco Industries Inc), B107.40 TY1 (General Services Administration Federal Supply Service), RXFS2022A (Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc) and 8 more.

What NSN replaces 5120-00-601-9406?

There are 12 known substitutes for 5120-00-601-9406: 5220-00-004-5710, 5330-00-083-7714, 5960-00-501-1127 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 28-140?

Key specifications for 28-140: Large End Head Thickness: 0.625 INCHES MAXIMUM IN; Overall Length: 6.250 INCHES MINIMUM IN; Special Features: FORGED STEEL; Wrenching Surface Size: 0.625 INCHES NOMINAL FIRST END IN. 12 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-00-601-9406 still in active supply?

NSN 5120-00-601-9406 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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