PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21172Key Set,socket Head Screw

Eklind Tool Co · NSN 5120-01-430-9451 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-430-9451 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-430-9451. Primary manufacturer part number: 21172.
Features
  • Key Set,socket Head Screw — FSC 5120
  • Handle Type: STRAIGHT
  • Key Characteristic: CONTAINS HEX KEYS SIZE 2, 2.5, 3, 4, 5, 6 AND 8MM MM
  • Features Provided: FOLD-UP TYPE
  • Key Quantity: 7
  • 1 verified cross-reference
  • Primary manufacturer: Eklind Tool Co
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Key Set,socket Head Screw, cataloged under National Stock Number 5120-01-430-9451, 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 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5120-01-430-9451
Primary Part Number21172
Item NameKey Set,socket Head Screw
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerEklind Tool Co
StatusCANCELLED
Handle TypeSTRAIGHT
Key CharacteristicCONTAINS HEX KEYS SIZE 2, 2.5, 3, 4, 5, 6 AND 8MM MM
Features ProvidedFOLD-UP TYPE
Key Quantity7
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 7
5930-00-137-4878 INTERCHANGEABLE
Switch,push
5935-00-167-5997A3004590-1 INTERCHANGEABLE
Adapter,connector
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
3040-00-348-0828 INTERCHANGEABLE
Shaft,shouldered
5330-00-602-1547 INTERCHANGEABLE
Seal,plain Encased
5950-01-005-0110989112-35B INTERCHANGEABLE
Coil,radio Frequency
Raytheon Company Dba Raytheon
5310-01-066-243821172 INTERCHANGEABLE
Washer,lock
Sullair Corp
3010-01-623-785721-172 INTERCHANGEABLE
Gearcase-Motor
Hii Unmanned Systems, Inc
Cross-Reference Index
Part NumberManufacturer
21172 PRIMARY Eklind Tool Co (USA)
Related Parts
5930-00-137-4878INTERCHANGEABLE
SWITCH,PUSH
5935-00-167-5997INTERCHANGEABLE
ADAPTER,CONNECTOR
A3004590-1
3040-00-348-0828INTERCHANGEABLE
SHAFT,SHOULDERED
5330-00-602-1547INTERCHANGEABLE
SEAL,PLAIN ENCASED
5950-01-005-0110INTERCHANGEABLE
COIL,RADIO FREQUENCY
989112-35B
5310-01-066-2438INTERCHANGEABLE
WASHER,LOCK
21172
3010-01-623-7857INTERCHANGEABLE
GEARCASE-MOTOR
21-172

Frequently Asked Questions

What is NSN 5120-01-430-9451?

NSN 5120-01-430-9451 is a Key Set,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 5120-01-430-9451?

NSN 5120-01-430-9451 has 1 cross-referenced part number: 21172 (Eklind Tool Co).

What NSN replaces 5120-01-430-9451?

There are 7 known substitutes for 5120-01-430-9451: 5930-00-137-4878, 5935-00-167-5997, 3040-00-348-0828 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21172?

Key specifications for 21172: Special Features: METAL HANDLE; 4-1/4 IN. HANDLE LG IN; Handle Type: STRAIGHT; Key Characteristic: CONTAINS HEX KEYS SIZE 2, 2.5, 3, 4, 5, 6 AND 8MM MM; Features Provided: FOLD-UP TYPE. 5 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-01-430-9451 still in active supply?

NSN 5120-01-430-9451 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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