PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

18124Key,socket Head Screw

Eklind Tool Co · NSN 5120-01-653-8315 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-653-8315 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-653-8315. Primary manufacturer part number: 18124.
Features
  • Key,socket Head Screw — FSC 5120
  • Surface Treatment: OXIDE OVERALL
  • Wrenching Surface Size: 0.375 INCHES NOMINAL BOTH ENDS IN
  • Material: STEEL OVERALL
  • Specification/standard Data: 05047-ASME B18.3 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Style Designator: L-HANDLE
  • Wrenching Surface Shape: HEXAGON BOTH ENDS EXTERNAL
  • Features Provided: BALL END AND SHORT SERIES
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Key,socket Head Screw, cataloged under National Stock Number 5120-01-653-8315, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Eklind Tool Co. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-01-653-8315
Primary Part Number18124
Item NameKey,socket Head Screw
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerEklind Tool Co
StatusACTIVE
Surface TreatmentOXIDE OVERALL
Wrenching Surface Size0.375 INCHES NOMINAL BOTH ENDS IN
MaterialSTEEL OVERALL
Specification/standard Data05047-ASME B18.3 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Style DesignatorL-HANDLE
Wrenching Surface ShapeHEXAGON BOTH ENDS EXTERNAL
Features ProvidedBALL END AND SHORT SERIES
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
4820-00-331-9892005.102.0041 INTERCHANGEABLE
Disk,valve
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
5950-00-594-1217240-0313-00 INTERCHANGEABLE
Coil,radio Frequency
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
2530-00-836-1701WE7-2 INTERCHANGEABLE
Brake,shoe Type
Meritor Industrial Products, Llc
1680-00-871-488118124 INTERCHANGEABLE
Ring Gear,actuator
Ontic Engineering & Manufacturing, Inc Dba Ontic Us
5310-01-317-722518124 INTERCHANGEABLE
Washer,spring Tension
Saft America Inc. Dba Tadiran Batteries Div Aviation Division
6505-01-586-5691480921 INTERCHANGEABLE
Lidocaine Hydrochloride and Epin
Fresenius Kabi, Llc
Cross-Reference Index
Part NumberManufacturer
18124 Eklind Tool Co (USA)
B18.3 The American Society of Mechanical Engineers (USA)
Related Parts
4820-00-331-9892INTERCHANGEABLE
DISK,VALVE
005.102.0041
5950-00-594-1217INTERCHANGEABLE
COIL,RADIO FREQUENCY
240-0313-00
2530-00-836-1701INTERCHANGEABLE
BRAKE,SHOE TYPE
WE7-2
1680-00-871-4881INTERCHANGEABLE
RING GEAR,ACTUATOR
18124
5310-01-317-7225INTERCHANGEABLE
WASHER,SPRING TENSION
18124
6505-01-586-5691INTERCHANGEABLE
LIDOCAINE HYDROCHLORIDE AND EPIN
480921

Frequently Asked Questions

What is NSN 5120-01-653-8315?

NSN 5120-01-653-8315 is a Key,socket Head Screw, manufactured by Eklind Tool Co, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-01-653-8315?

NSN 5120-01-653-8315 has 2 cross-referenced part numbers: 18124 (Eklind Tool Co), B18.3 (The American Society of Mechanical Engineers).

What NSN replaces 5120-01-653-8315?

There are 6 known substitutes for 5120-01-653-8315: 4820-00-331-9892, 5950-00-594-1217, 2530-00-836-1701 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 18124?

Key specifications for 18124: Overall Length: 6.750 INCHES NOMINAL IN; Surface Treatment: OXIDE OVERALL; Wrenching Surface Size: 0.375 INCHES NOMINAL BOTH ENDS IN; Material: STEEL OVERALL. 8 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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