PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

28-224Wrench,open End and Flarenut,com

Apex Tool Group, Llc Dba Nicholson · NSN 5120-01-127-5638 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-127-5638 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-127-5638. Primary manufacturer part number: 28-224.
Features
  • Wrench,open End and Flarenut,com — FSC 5120
  • General Characteristics Item Description: STEEL; CHROME PLATED; DOUBLE HEAD; 6 POINT FLARENUT END; 3/4 IN. OPENINGS AT BOTH ENDS; 0.340 IN. OPEN END HEAD THICKNESS; 0.470 IN. FLARENUT END HEAD THICKNESS; 9-1/2 IN. LG IN
  • 4 verified cross-references
  • Primary manufacturer: Apex Tool Group, Llc Dba Nicholson
Applications
  • Field maintenance and repair
  • Facility maintenance operations
  • General-purpose hand tools
General Description

The Wrench,open End and Flarenut,com, cataloged under National Stock Number 5120-01-127-5638, 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 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-01-127-5638
Primary Part Number28-224
Item NameWrench,open End and Flarenut,com
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerApex Tool Group, Llc Dba Nicholson
StatusACTIVE
General Characteristics Item DescriptionSTEEL; CHROME PLATED; DOUBLE HEAD; 6 POINT FLARENUT END; 3/4 IN. OPENINGS AT BOTH ENDS; 0.340 IN. OPEN END HEAD THICKNESS; 0.470 IN. FLARENUT END HEAD THICKNESS; 9-1/2 IN. LG IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3110-00-120-44587005659-01 INTERCHANGEABLE
Bearing,ball,thrust
Lockheed Martin Corp Dba Lockheed Martin Div Mst - Eagan
6145-00-257-67651324C INTERCHANGEABLE
Cable,special Purpose,electrical
Belden, Inc.
5120-00-303-77371324 INTERCHANGEABLE
Wrench,field Range
Huntington Partners, Inc. Dba Continental Tool & Mfg.
5910-00-556-17410F50-503 INTERCHANGEABLE
Capacitor,fixed,plastic Dielectr
Plastic Capacitors Inc
6685-00-769-56971324 INTERCHANGEABLE
Tester,pyrometer and Thermocoupl
Entron Industries Limited Partnership Dba Entron Industries Property Div
5998-00-794-2126 INTERCHANGEABLE
Circuit Card Assembly
5930-00-991-05891324 INTERCHANGEABLE
Switch,rotary
Cole Instrument Corp. Dba Cole Instruments
5340-01-036-86831324 INTERCHANGEABLE
Standoff,threaded,spacing
L3harris Technologies, Inc. Div Space and Airborne Systems
8940-01-061-84571324 INTERCHANGEABLE
Dietary Supplement,therapeutic
Novartis Pharmaceuticals Corporation
4730-01-108-354528745 INTERCHANGEABLE
Outlet,boss
Moog Inc. Dba Ampac-Isp Corp
Cross-Reference Index
Part NumberManufacturer
28-224 Apex Tool Group, Llc Dba Nicholson (USA)
28-224 Armstrong Bros Tool Co (USA)
1324 Armstrong Bros Tool Co (USA)
28-224 Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc. (USA)
Related Parts
3110-00-120-4458INTERCHANGEABLE
BEARING,BALL,THRUST
7005659-01
6145-00-257-6765INTERCHANGEABLE
CABLE,SPECIAL PURPOSE,ELECTRICAL
1324C
5120-00-303-7737INTERCHANGEABLE
WRENCH,FIELD RANGE
1324
5910-00-556-1741INTERCHANGEABLE
CAPACITOR,FIXED,PLASTIC DIELECTR
0F50-503
6685-00-769-5697INTERCHANGEABLE
TESTER,PYROMETER AND THERMOCOUPL
1324
5998-00-794-2126INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
5930-00-991-0589INTERCHANGEABLE
SWITCH,ROTARY
1324
5340-01-036-8683INTERCHANGEABLE
STANDOFF,THREADED,SPACING
1324
8940-01-061-8457INTERCHANGEABLE
DIETARY SUPPLEMENT,THERAPEUTIC
1324
4730-01-108-3545INTERCHANGEABLE
OUTLET,BOSS
28745
5330-01-129-6827INTERCHANGEABLE
GASKET
KS-10911-A
5315-01-349-2808INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
28224

Frequently Asked Questions

What is NSN 5120-01-127-5638?

NSN 5120-01-127-5638 is a Wrench,open End and Flarenut,com, manufactured by Apex Tool Group, Llc Dba Nicholson, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-01-127-5638?

NSN 5120-01-127-5638 has 4 cross-referenced part numbers: 28-224 (Apex Tool Group, Llc Dba Nicholson), 28-224 (Armstrong Bros Tool Co), 1324 (Armstrong Bros Tool Co), 28-224 (Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc.).

What NSN replaces 5120-01-127-5638?

There are 12 known substitutes for 5120-01-127-5638: 3110-00-120-4458, 6145-00-257-6765, 5120-00-303-7737 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 28-224?

Key specifications for 28-224: General Characteristics Item Description: STEEL; CHROME PLATED; DOUBLE HEAD; 6 POINT FLARENUT END; 3/4 IN. OPENINGS AT BOTH ENDS; 0.340 IN. OPEN END HEAD THICKNESS; 0.470 IN. FLARENUT END HEAD THICKNESS; 9-1/2 IN. LG IN. 1 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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