PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

45210Socket,socket Wrench

S K Hand Tool Corp · NSN 5120-01-651-0545 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-651-0545 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-651-0545. Primary manufacturer part number: 45210.
Features
  • Socket,socket Wrench — FSC 5120
  • Drive End Shape: SQUARE SINGLE END INTERNAL
  • Material: STEEL OVERALL
  • Nondefinitive Spec/std Data: 1 TYPE AND 1 CLASS AND A STYLE
  • Wrenching Surface Shape: 12 POINT FIRST END INTERNAL
  • Drive Surface Size: 0.375 INCHES NOMINAL SINGLE END IN
  • Style Designator: INTERNAL-INTERNAL
  • Surface Treatment: CHROMIUM OVERALL
Applications
  • Applications requiring Steel Overall construction
General Description

The Socket,socket Wrench, cataloged under National Stock Number 5120-01-651-0545, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is S K Hand Tool Corp. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-01-651-0545
Primary Part Number45210
Item NameSocket,socket Wrench
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerS K Hand Tool Corp
StatusACTIVE
Drive End ShapeSQUARE SINGLE END INTERNAL
MaterialSTEEL OVERALL
Nondefinitive Spec/std Data1 TYPE AND 1 CLASS AND A STYLE
Wrenching Surface Shape12 POINT FIRST END INTERNAL
Drive Surface Size0.375 INCHES NOMINAL SINGLE END IN
Style DesignatorINTERNAL-INTERNAL
Surface TreatmentCHROMIUM OVERALL
Specification/standard Data0U583-SAE AS954 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Features ProvidedMANUAL TOOL
Wrenching Surface Size0.313 INCHES NOMINAL SINGLE END IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
4320-00-061-508145210 INTERCHANGEABLE
Valve,intake,pump
Eaton Aerospace, Llc Dba Jackson South
3110-00-156-791104930AB INTERCHANGEABLE
Bearing,ball,annular
Cnh Industrial America Llc Dba Cnh America
3110-00-156-7912 INTERCHANGEABLE
Bearing,ball,annular
3455-00-268-950359-10094 INTERCHANGEABLE
Cutter,milling,screw Slotting
Union Butterfield Corp P O Box 9000 Crystal Lake Il 60039
5998-00-757-325945210 INTERCHANGEABLE
Printed Circuit Car
L3harris Technologies, Inc. Div Space and Airborne Systems
3710-01-032-6795450-10 INTERCHANGEABLE
Seeder Attachment,seed Drill
Deere & Co
5330-01-278-2019 INTERCHANGEABLE
Seal,plain Encased
5985-01-348-50771700AS1366-6 INTERCHANGEABLE
Attenuator,fixed
Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
5999-01-430-48954521-0 INTERCHANGEABLE
Clip,electrical
Fluke Electronics Corp
5210-01-434-9756452-10 INTERCHANGEABLE
Caliper,outside
General Tools Manufacturing Co., Llc.
Cross-Reference Index
Part NumberManufacturer
45210 S K Hand Tool Corp (USA)
AS954 Sae International Dba Sae International (USA)
AS954 TY1CL1STA General Services Administration Federal Supply Service (USA)
AS954 Society of Automotive Engineers Inc (USA)
Related Parts
4320-00-061-5081INTERCHANGEABLE
VALVE,INTAKE,PUMP
45210
3110-00-156-7911INTERCHANGEABLE
BEARING,BALL,ANNULAR
04930AB
3110-00-156-7912INTERCHANGEABLE
BEARING,BALL,ANNULAR
3455-00-268-9503INTERCHANGEABLE
CUTTER,MILLING,SCREW SLOTTING
59-10094
5998-00-757-3259INTERCHANGEABLE
PRINTED CIRCUIT CAR
45210
3710-01-032-6795INTERCHANGEABLE
SEEDER ATTACHMENT,SEED DRILL
450-10
5330-01-278-2019INTERCHANGEABLE
SEAL,PLAIN ENCASED
5985-01-348-5077INTERCHANGEABLE
ATTENUATOR,FIXED
1700AS1366-6
5999-01-430-4895INTERCHANGEABLE
CLIP,ELECTRICAL
4521-0
5210-01-434-9756INTERCHANGEABLE
CALIPER,OUTSIDE
452-10
7025-01-641-9573INTERCHANGEABLE
INTERFACE UNIT,AUTOMATIC DATA PR
45210

Frequently Asked Questions

What is NSN 5120-01-651-0545?

NSN 5120-01-651-0545 is a Socket,socket Wrench, manufactured by S K Hand Tool Corp, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-01-651-0545?

NSN 5120-01-651-0545 has 4 cross-referenced part numbers: 45210 (S K Hand Tool Corp), AS954 (Sae International Dba Sae International), AS954 TY1CL1STA (General Services Administration Federal Supply Service), AS954 (Society of Automotive Engineers Inc).

What NSN replaces 5120-01-651-0545?

There are 11 known substitutes for 5120-01-651-0545: 4320-00-061-5081, 3110-00-156-7911, 3110-00-156-7912 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 45210?

Key specifications for 45210: Overall Length: 1.270 INCHES MAXIMUM IN; Drive End Shape: SQUARE SINGLE END INTERNAL; Material: STEEL OVERALL; Nondefinitive Spec/std Data: 1 TYPE AND 1 CLASS AND A STYLE. 11 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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