PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

16103Key,socket Head Screw

Eklind Tool Co · NSN 5120-01-428-7998 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-428-7998 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-428-7998. Primary manufacturer part number: 16103.
Features
  • Key,socket Head Screw — FSC 5120
  • Wrenching Surface Size: 0.050 INCHES NOMINAL BOTH ENDS IN
  • Features Provided: SHORT SERIES
  • Wrenching Surface Shape: HEXAGON BOTH ENDS EXTERNAL
  • Style Designator: L-HANDLE
  • Material: STEEL OVERALL
  • Surface Treatment: ZINC OVERALL
  • 7 verified cross-references
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 5120-01-428-7998, 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 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5120-01-428-7998
Primary Part Number16103
Item NameKey,socket Head Screw
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerEklind Tool Co
StatusCANCELLED
Wrenching Surface Size0.050 INCHES NOMINAL BOTH ENDS IN
Features ProvidedSHORT SERIES
Wrenching Surface ShapeHEXAGON BOTH ENDS EXTERNAL
Style DesignatorL-HANDLE
MaterialSTEEL OVERALL
Surface TreatmentZINC OVERALL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 10
6640-01-060-9671 INTERCHANGEABLE
Cabinet,biological Safety
5962-01-070-8445 INTERCHANGEABLE
Microcircuit,digital
5120-01-082-6444 INTERCHANGEABLE
Screwdriver Attachment Set,socke
3110-01-119-492116103 INTERCHANGEABLE
Bearing,ball,annular
Westerbeke Corporation
5340-01-169-21391610300 INTERCHANGEABLE
Cover,access
Phoenix Products Llc Dba Phoenix Lighting Products Llc
5120-01-395-5433 INTERCHANGEABLE
Key,socket Head Screw
5120-01-422-0092602C3 INTERCHANGEABLE
Tool,installation
Howmet Global Fastening Systems Inc Div Rosan Products
1005-01-459-533516103 INTERCHANGEABLE
Receiver,cartridge
O F Mossberg & Sons Inc
4730-01-526-2996 INTERCHANGEABLE
Adapter,straight,tube to Boss
5325-01-719-318216103 INTERCHANGEABLE
Insert,screw Thread
Time Fastener Co Inc
Cross-Reference Index
Part NumberManufacturer
ZHVY0217-3 Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
16103 PRIMARY Eklind Tool Co (USA)
ZLW0283-3 Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
5120PL1060772 Jednolity Indeks Materialowy - Uniform Material Index (POL)
AW050 Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
AW050D Aertekno S.r.l. (ITA)
AW050D PRIMARY Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
Related Parts
6640-01-060-9671INTERCHANGEABLE
CABINET,BIOLOGICAL SAFETY
5962-01-070-8445INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
5120-01-082-6444INTERCHANGEABLE
SCREWDRIVER ATTACHMENT SET,SOCKE
3110-01-119-4921INTERCHANGEABLE
BEARING,BALL,ANNULAR
16103
5340-01-169-2139INTERCHANGEABLE
COVER,ACCESS
1610300
5120-01-395-5433INTERCHANGEABLE
KEY,SOCKET HEAD SCREW
5120-01-422-0092INTERCHANGEABLE
TOOL,INSTALLATION
602C3
1005-01-459-5335INTERCHANGEABLE
RECEIVER,CARTRIDGE
16103
4730-01-526-2996INTERCHANGEABLE
ADAPTER,STRAIGHT,TUBE TO BOSS
5325-01-719-3182INTERCHANGEABLE
INSERT,SCREW THREAD
16103

Frequently Asked Questions

What is NSN 5120-01-428-7998?

NSN 5120-01-428-7998 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 5120-01-428-7998?

NSN 5120-01-428-7998 has 7 cross-referenced part numbers: ZHVY0217-3 (Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc), 16103 (Eklind Tool Co), ZLW0283-3 (Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc), 5120PL1060772 (Jednolity Indeks Materialowy - Uniform Material Index), AW050 (Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc) and 2 more.

What NSN replaces 5120-01-428-7998?

There are 10 known substitutes for 5120-01-428-7998: 6640-01-060-9671, 5962-01-070-8445, 5120-01-082-6444 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 16103?

Key specifications for 16103: Overall Length: 1.750 INCHES NOMINAL IN; Wrenching Surface Size: 0.050 INCHES NOMINAL BOTH ENDS IN; Features Provided: SHORT SERIES; Wrenching Surface Shape: HEXAGON BOTH ENDS EXTERNAL. 7 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-01-428-7998 still in active supply?

NSN 5120-01-428-7998 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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