PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

15504Key,socket Head Screw

Eklind Tool Co · NSN 5120-01-644-3459 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-644-3459 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-644-3459. Primary manufacturer part number: 15504.
Features
  • Key,socket Head Screw — FSC 5120
  • Features Provided: SHORT SERIES
  • Short Arm Length: 0.610 INCHES NOMINAL IN
  • Long Arm Length: 1.930 INCHES NOMINAL IN
  • Style Designator: L-HANDLE
  • Wrenching Surface Size: 2.0 MILLIMETERS NOMINAL BOTH ENDS MM
  • Surface Treatment: OXIDE OVERALL
  • Material: STEEL OVERALL
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 5120-01-644-3459, 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 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5120-01-644-3459
Primary Part Number15504
Item NameKey,socket Head Screw
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerEklind Tool Co
StatusCANCELLED
Features ProvidedSHORT SERIES
Short Arm Length0.610 INCHES NOMINAL IN
Long Arm Length1.930 INCHES NOMINAL IN
Style DesignatorL-HANDLE
Wrenching Surface Size2.0 MILLIMETERS NOMINAL BOTH ENDS MM
Surface TreatmentOXIDE OVERALL
MaterialSTEEL OVERALL
Wrenching Surface ShapeHEXAGON BOTH ENDS EXTERNAL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 11
6210-00-183-047215/504 INTERCHANGEABLE
Lens,light
Staco Systems, Inc. Dba Staco Systems Div Dba Staco Systems
5110-00-253-3172 INTERCHANGEABLE
Reamer,hand
6695-00-468-688415504 INTERCHANGEABLE
Meter Movement
Simmonds Precision Products Inc
5310-00-637-046915504 INTERCHANGEABLE
Nut,plain,hexagon
Triumph Engine Control Systems Llc
9540-01-072-9272 INTERCHANGEABLE
Angle,structural
8145-01-135-1475374E001-1 INTERCHANGEABLE
Shipping and Storage Container,p
Container Research Corp Dba Container Research Corp Div Containr Research Corporation
5998-01-170-573715504 INTERCHANGEABLE
Extender Card,electronic Test
Datum Inc Bancomm-Timing Div
5962-01-267-222015504 INTERCHANGEABLE
Microcircuit,linear
Giga-Tronics Incorporated Dba Giga-Tronics
5310-01-421-310615504 INTERCHANGEABLE
Nut,self-Locking,hexagon
Spx Fluid Power
6340-01-507-2457 INTERCHANGEABLE
Annunciator
Cross-Reference Index
Part NumberManufacturer
15504 PRIMARY Eklind Tool Co (USA)
B18.3.2M PRIMARY The American Society of Mechanical Engineers (USA)
ET2MM PRIMARY Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
Related Parts
6210-00-183-0472INTERCHANGEABLE
LENS,LIGHT
15/504
5110-00-253-3172INTERCHANGEABLE
REAMER,HAND
6695-00-468-6884INTERCHANGEABLE
METER MOVEMENT
15504
5310-00-637-0469INTERCHANGEABLE
NUT,PLAIN,HEXAGON
15504
9540-01-072-9272INTERCHANGEABLE
ANGLE,STRUCTURAL
8145-01-135-1475INTERCHANGEABLE
SHIPPING AND STORAGE CONTAINER,P
374E001-1
5998-01-170-5737INTERCHANGEABLE
EXTENDER CARD,ELECTRONIC TEST
15504
5962-01-267-2220INTERCHANGEABLE
MICROCIRCUIT,LINEAR
15504
5310-01-421-3106INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
15504
6340-01-507-2457INTERCHANGEABLE
ANNUNCIATOR
6515-01-584-4638INTERCHANGEABLE
LID,BATTERY HANDPIECE
05.001.227

Frequently Asked Questions

What is NSN 5120-01-644-3459?

NSN 5120-01-644-3459 is a Key,socket Head Screw, manufactured by Eklind Tool Co, classified under FSC 5120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5120-01-644-3459?

NSN 5120-01-644-3459 has 3 cross-referenced part numbers: 15504 (Eklind Tool Co), B18.3.2M (The American Society of Mechanical Engineers), ET2MM (Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc).

What NSN replaces 5120-01-644-3459?

There are 11 known substitutes for 5120-01-644-3459: 6210-00-183-0472, 5110-00-253-3172, 6695-00-468-6884 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 15504?

Key specifications for 15504: Features Provided: SHORT SERIES; Short Arm Length: 0.610 INCHES NOMINAL IN; Long Arm Length: 1.930 INCHES NOMINAL IN; Style Designator: L-HANDLE. 8 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-01-644-3459 still in active supply?

NSN 5120-01-644-3459 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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