PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

28-052Wrench,open End

Apex Tool Group, Llc Dba Nicholson · NSN 5120-00-203-4802 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-203-4802 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-203-4802. Primary manufacturer part number: 28-052.
Features
  • Wrench,open End — FSC 5120
  • Wrenching Surface Size: 1.625 INCHES NOMINAL SINGLE END IN
  • Wrenching Surface Shape: OVAL SINGLE END INTERNAL
  • Head Angle: 30.0 DEGREES NOMINAL
  • Head Thickness: 0.281 INCHES MAXIMUM IN
  • Torque Capacity: 1500.0 INCH-POUNDS MINIMUM IN
  • Environmental Attribute Code: PLASTICS REMOVAL IN THE MARINE ENVIRONMENT (PRIME) PRODUCT
  • Material: STEEL OVERALL
Applications
  • Applications requiring Steel Overall construction
General Description

The Wrench,open End, cataloged under National Stock Number 5120-00-203-4802, 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 9 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5120-00-203-4802
Primary Part Number28-052
Item NameWrench,open End
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerApex Tool Group, Llc Dba Nicholson
StatusCANCELLED
Wrenching Surface Size1.625 INCHES NOMINAL SINGLE END IN
Wrenching Surface ShapeOVAL SINGLE END INTERNAL
Head Angle30.0 DEGREES NOMINAL
Head Thickness0.281 INCHES MAXIMUM IN
Torque Capacity1500.0 INCH-POUNDS MINIMUM IN
Environmental Attribute CodePLASTICS REMOVAL IN THE MARINE ENVIRONMENT (PRIME) PRODUCT
MaterialSTEEL OVERALL
Surface TreatmentNICKEL AND CHROMIUM OVERALL
Hardness Rating40.0 ROCKWELL C MINIMUM AND 54.0 ROCKWELL C MAXIMUM
Style DesignatorSINGLE HEAD
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 9
6515-00-338-380074-2590 INTERCHANGEABLE
Forceps,tonsil Seizing
Sklar Corp
5940-00-686-8324 INTERCHANGEABLE
Terminal,stud
5950-00-828-1697 INTERCHANGEABLE
Transformer,audio Frequency
5935-01-149-2540M85049/41-4A INTERCHANGEABLE
Clamp,cable,electrical Connector
Sae International Dba Sae International
4720-01-186-86819J5197 INTERCHANGEABLE
Hose Assembly,nonmetallic
Caterpillar Inc Div Caterpillar Defense
5950-01-203-472611436920 INTERCHANGEABLE
Transformer,pulse
Us Army Aviation and Missile Command
5970-01-425-5965P5372-1-2 INTERCHANGEABLE
Tape,insulation,electrical
Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company
5970-01-425-5968HM-350 1/2IN. BLK INTERCHANGEABLE
Tape,insulation,electrical
Saint-Gobain Performance Plastics Corp Div Composites
5120-01-580-995628052 INTERCHANGEABLE
Hammer,slide
Radulovich-Balasubramanin, Suzana
Cross-Reference Index
Part NumberManufacturer
28-052 Apex Tool Group, Llc Dba Nicholson (USA)
9B1496 Caterpillar Inc Div Caterpillar Defense (USA)
22552 Utica Tool Co Inc (USA)
A-A-1353 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
28-052 Armstrong Bros Tool Co (USA)
28-052 Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc. (USA)
1252 Utica Tool Co Inc (USA)
GGG-W-636 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
GGG-W-636 TY17CL3 General Services Administration Federal Supply Service (USA)
Related Parts
6515-00-338-3800INTERCHANGEABLE
FORCEPS,TONSIL SEIZING
74-2590
5940-00-686-8324INTERCHANGEABLE
TERMINAL,STUD
5950-00-828-1697INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
5935-01-149-2540INTERCHANGEABLE
CLAMP,CABLE,ELECTRICAL CONNECTOR
M85049/41-4A
4720-01-186-8681INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
9J5197
5950-01-203-4726INTERCHANGEABLE
TRANSFORMER,PULSE
11436920
5970-01-425-5965INTERCHANGEABLE
TAPE,INSULATION,ELECTRICAL
P5372-1-2
5970-01-425-5968INTERCHANGEABLE
TAPE,INSULATION,ELECTRICAL
HM-350 1/2IN. BLK
5120-01-580-9956INTERCHANGEABLE
HAMMER,SLIDE
28052

Frequently Asked Questions

What is NSN 5120-00-203-4802?

NSN 5120-00-203-4802 is a Wrench,open End, 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 5120-00-203-4802?

NSN 5120-00-203-4802 has 9 cross-referenced part numbers: 28-052 (Apex Tool Group, Llc Dba Nicholson), 9B1496 (Caterpillar Inc Div Caterpillar Defense), 22552 (Utica Tool Co Inc), A-A-1353 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), 28-052 (Armstrong Bros Tool Co) and 4 more.

What NSN replaces 5120-00-203-4802?

There are 9 known substitutes for 5120-00-203-4802: 6515-00-338-3800, 5940-00-686-8324, 5950-00-828-1697 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 28-052?

Key specifications for 28-052: Overall Length: 7.625 INCHES MINIMUM IN; Wrenching Surface Size: 1.625 INCHES NOMINAL SINGLE END IN; Wrenching Surface Shape: OVAL SINGLE END INTERNAL; Head Angle: 30.0 DEGREES NOMINAL. 12 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-00-203-4802 still in active supply?

NSN 5120-00-203-4802 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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