PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

28-048Wrench,open End

Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc. · NSN 5120-00-203-4804 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-203-4804 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-203-4804. Primary manufacturer part number: 28-048.
Features
  • Wrench,open End — FSC 5120
  • Head Thickness: 0.281 INCHES MAXIMUM IN
  • Head Angle: 30.0 DEGREES NOMINAL
  • Surface Treatment: NICKEL AND CHROMIUM OVERALL
  • Material: STEEL OVERALL
  • Wrenching Surface Shape: OVAL SINGLE END INTERNAL
  • Hardness Rating: 40.0 ROCKWELL C MINIMUM AND 54.0 ROCKWELL C MAXIMUM
  • Environmental Attribute Code: PLASTICS REMOVAL IN THE MARINE ENVIRONMENT (PRIME) PRODUCT
Applications
  • Applications requiring Steel Overall construction
General Description

The Wrench,open End, cataloged under National Stock Number 5120-00-203-4804, 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 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 14 commercial cross-references from 13 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
NSN5120-00-203-4804
Primary Part Number28-048
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
Head Thickness0.281 INCHES MAXIMUM IN
Head Angle30.0 DEGREES NOMINAL
Surface TreatmentNICKEL AND CHROMIUM OVERALL
MaterialSTEEL OVERALL
Wrenching Surface ShapeOVAL SINGLE END INTERNAL
Hardness Rating40.0 ROCKWELL C MINIMUM AND 54.0 ROCKWELL C MAXIMUM
Environmental Attribute CodePLASTICS REMOVAL IN THE MARINE ENVIRONMENT (PRIME) PRODUCT
Style DesignatorSINGLE HEAD
Torque Capacity1500.0 INCH-POUNDS MINIMUM IN
Wrenching Surface Size1.500 INCHES NOMINAL SINGLE END IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
6240-00-019-09181248 INTERCHANGEABLE
Lamp,incandescent
Lamp Industry for Use with Industry Designations and Abbreviations for Lamps
5985-00-148-82321248 INTERCHANGEABLE
Circulator,radio Frequency
Raytheon Company Dba Raytheon
5133-00-227-5962 INTERCHANGEABLE
Drill,twist
6145-00-233-54501870 INTERCHANGEABLE
Cable,special Purpose,electrical
Birnbach Co Inc
5310-00-264-1984 INTERCHANGEABLE
Washer,lock
5120-00-277-8834 INTERCHANGEABLE
Wrench,box and Open End,combinat
5305-00-285-55761248 INTERCHANGEABLE
Screw,machine
Telemechanics Inc
9540-00-288-3731 INTERCHANGEABLE
Angle,structural
2805-00-301-2940AG31 INTERCHANGEABLE
Rotor,engine Poppet Valve
Wisconsin Motors, Llc
5360-00-302-086628048 INTERCHANGEABLE
Spring,helical,compression
Parker-Hannifin Corporation
Cross-Reference Index
Part NumberManufacturer
28-048 Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc. (USA)
8176256 Us Army Aviation and Missile Command (USA)
1448 Wright Tool Company, Llc (USA)
28-048 Armstrong Bros Tool Co (USA)
1248 Martin Sprocket and Gear Inc (USA)
3B5861 Caterpillar Inc Div Caterpillar Defense (USA)
1248 Parker-Hannifin Corp Div Sporlan Division (USA)
GGG-W-636 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
28-048 Apex Tool Group, Llc Dba Nicholson (USA)
GGG-W-636 TY17CL3 General Services Administration Federal Supply Service (USA)
A-A-1353 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
1248 Bonney Forge Corp (USA)
1248 Utica Tool Co Inc (USA)
22548 Utica Tool Co Inc (USA)
Related Parts
6240-00-019-0918INTERCHANGEABLE
LAMP,INCANDESCENT
1248
5985-00-148-8232INTERCHANGEABLE
CIRCULATOR,RADIO FREQUENCY
1248
5133-00-227-5962INTERCHANGEABLE
DRILL,TWIST
6145-00-233-5450INTERCHANGEABLE
CABLE,SPECIAL PURPOSE,ELECTRICAL
1870
5310-00-264-1984INTERCHANGEABLE
WASHER,LOCK
5120-00-277-8834INTERCHANGEABLE
WRENCH,BOX AND OPEN END,COMBINAT
5305-00-285-5576INTERCHANGEABLE
SCREW,MACHINE
1248
9540-00-288-3731INTERCHANGEABLE
ANGLE,STRUCTURAL
2805-00-301-2940INTERCHANGEABLE
ROTOR,ENGINE POPPET VALVE
AG31
5360-00-302-0866INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
28048
6640-00-328-9001INTERCHANGEABLE
HOOD,FUME,LABORATORY
5940-00-331-1453INTERCHANGEABLE
TERMINAL,LUG
124-169

Frequently Asked Questions

What is NSN 5120-00-203-4804?

NSN 5120-00-203-4804 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 5120-00-203-4804?

NSN 5120-00-203-4804 has 14 cross-referenced part numbers: 28-048 (Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc.), 8176256 (Us Army Aviation and Missile Command), 1448 (Wright Tool Company, Llc), 28-048 (Armstrong Bros Tool Co), 1248 (Martin Sprocket and Gear Inc) and 9 more.

What NSN replaces 5120-00-203-4804?

There are 12 known substitutes for 5120-00-203-4804: 6240-00-019-0918, 5985-00-148-8232, 5133-00-227-5962 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 28-048?

Key specifications for 28-048: Overall Length: 7.625 INCHES MINIMUM IN; Head Thickness: 0.281 INCHES MAXIMUM IN; Head Angle: 30.0 DEGREES NOMINAL; Surface Treatment: NICKEL AND CHROMIUM OVERALL. 12 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-00-203-4804 still in active supply?

NSN 5120-00-203-4804 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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