PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

51910Key,socket Head Screw

Eklind Tool Co · NSN 5120-01-445-0709 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-445-0709 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-445-0709. Primary manufacturer part number: 51910.
Features
  • Key,socket Head Screw — FSC 5120
  • Surface Treatment: OXIDE OVERALL
  • Features Provided: CUSHION GRIP
  • Material: STEEL OVERALL
  • Style Designator: FIXED T-HANDLE
  • Wrenching Surface Shape: HEXAGON SINGLE END EXTERNAL
  • Wrenching Surface Size: 0.156 INCHES NOMINAL SINGLE END IN
  • 3 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 5120-01-445-0709, 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 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5120-01-445-0709
Primary Part Number51910
Item NameKey,socket Head Screw
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerEklind Tool Co
StatusCANCELLED
Surface TreatmentOXIDE OVERALL
Features ProvidedCUSHION GRIP
MaterialSTEEL OVERALL
Style DesignatorFIXED T-HANDLE
Wrenching Surface ShapeHEXAGON SINGLE END EXTERNAL
Wrenching Surface Size0.156 INCHES NOMINAL SINGLE END IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 6
5950-00-806-3682 INTERCHANGEABLE
Transformer,audio Frequency
6220-01-174-186051910 INTERCHANGEABLE
Bracket,upper Mount
Ducommun Labarge Technologies, Inc Dba Ducommun Labarge Technologies, Inc
6840-01-180-0167COMBAT SOURCE KILL MAX R1 INTERCHANGEABLE
Insecticide,combat
Dial Corp the
5310-01-417-512351-910 INTERCHANGEABLE
Washer,key
Eao Switch Corporation
8345-01-590-2388 INTERCHANGEABLE
Flag,hqs and Hqs Bn-Div
5120-01-607-9019 INTERCHANGEABLE
Key,socket Head Screw
Cross-Reference Index
Part NumberManufacturer
51910 PRIMARY Eklind Tool Co (USA)
AWBCG1610 PRIMARY Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
B18.3 The American Society of Mechanical Engineers (USA)
Related Parts
5950-00-806-3682INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
6220-01-174-1860INTERCHANGEABLE
BRACKET,UPPER MOUNT
51910
6840-01-180-0167INTERCHANGEABLE
INSECTICIDE,COMBAT
COMBAT SOURCE KILL MAX R1
5310-01-417-5123INTERCHANGEABLE
WASHER,KEY
51-910
8345-01-590-2388INTERCHANGEABLE
FLAG,HQS AND HQS BN-DIV
5120-01-607-9019INTERCHANGEABLE
KEY,SOCKET HEAD SCREW

Frequently Asked Questions

What is NSN 5120-01-445-0709?

NSN 5120-01-445-0709 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 5120-01-445-0709?

NSN 5120-01-445-0709 has 3 cross-referenced part numbers: 51910 (Eklind Tool Co), AWBCG1610 (Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc), B18.3 (The American Society of Mechanical Engineers).

What NSN replaces 5120-01-445-0709?

There are 6 known substitutes for 5120-01-445-0709: 5950-00-806-3682, 6220-01-174-1860, 6840-01-180-0167 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 51910?

Key specifications for 51910: Surface Treatment: OXIDE OVERALL; Features Provided: CUSHION GRIP; Material: STEEL OVERALL; Style Designator: FIXED T-HANDLE. 8 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-01-445-0709 still in active supply?

NSN 5120-01-445-0709 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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