PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

10666Key,socket Head Screw

Bondhus Corp · NSN 5120-01-684-1928 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-684-1928 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-684-1928. Primary manufacturer part number: 10666.
Features
  • Key,socket Head Screw — FSC 5120
  • Handle Overall Length: 4.3 INCHES NOMINAL IN
  • Drive Surface Size: 5.5 MILLIMETERS NOMINAL SINGLE END MM
  • Drive End Shape: ROUND SINGLE END EXTERNAL
  • Wrenching Surface Size: 5.5 MILLIMETERS MAXIMUM SINGLE END MM
  • Wrenching Surface Shape: ROUND SINGLE END EXTERNAL
  • Style Designator: SCREWDRIVER HANDLE
  • Material: STEEL DRIVE SURFACE
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Drive Surface construction
General Description

The Key,socket Head Screw, cataloged under National Stock Number 5120-01-684-1928, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Bondhus Corp. Government technical data includes 8 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. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-01-684-1928
Primary Part Number10666
Item NameKey,socket Head Screw
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerBondhus Corp
StatusACTIVE
Handle Overall Length4.3 INCHES NOMINAL IN
Drive Surface Size5.5 MILLIMETERS NOMINAL SINGLE END MM
Drive End ShapeROUND SINGLE END EXTERNAL
Wrenching Surface Size5.5 MILLIMETERS MAXIMUM SINGLE END MM
Wrenching Surface ShapeROUND SINGLE END EXTERNAL
Style DesignatorSCREWDRIVER HANDLE
MaterialSTEEL DRIVE SURFACE
Material Document and ClassificationMANUFACTURE REFERENCE MFR REF SINGLE MATERIAL RESPONSE OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5330-00-031-785810666 INTERCHANGEABLE
Gasket
Avox Systems Inc Dba Avox Systems Inc
4320-00-300-405110666 INTERCHANGEABLE
Rod and Head Assembly,valve
Rps-Fl, Inc. Dba Rps Inc
5930-00-439-0856 INTERCHANGEABLE
Switch Assembly
5999-00-496-792301-0501-0666 INTERCHANGEABLE
Wire Mesh,knitted
Parker-Hannifin Corporation Dba Pneutronics Div Chomerics Division
5910-00-643-8778 INTERCHANGEABLE
Capacitor,fixed,ceramic Dielectr
6145-01-145-5533 INTERCHANGEABLE
Cable,power,electrical
6545-01-572-4201UA 526A-2010 INTERCHANGEABLE
Mes So Advance Tactical Care 201
Department of the Army U S Army Medical Material Agency Mcmr-Mmo-Sa
2910-01-672-519316-638880 INTERCHANGEABLE
Pump,fuel,metering and Distribut
Separ of the Americas, Llc Dba Separ, Losing Filtertek Div Separ Filter
Cross-Reference Index
Part NumberManufacturer
10666 PRIMARY Bondhus Corp (USA)
Related Parts
5330-00-031-7858INTERCHANGEABLE
GASKET
10666
4320-00-300-4051INTERCHANGEABLE
ROD AND HEAD ASSEMBLY,VALVE
10666
5930-00-439-0856INTERCHANGEABLE
SWITCH ASSEMBLY
5999-00-496-7923INTERCHANGEABLE
WIRE MESH,KNITTED
01-0501-0666
5910-00-643-8778INTERCHANGEABLE
CAPACITOR,FIXED,CERAMIC DIELECTR
6145-01-145-5533INTERCHANGEABLE
CABLE,POWER,ELECTRICAL
6545-01-572-4201INTERCHANGEABLE
MES SO ADVANCE TACTICAL CARE 201
UA 526A-2010
2910-01-672-5193INTERCHANGEABLE
PUMP,FUEL,METERING AND DISTRIBUT
16-638880

Frequently Asked Questions

What is NSN 5120-01-684-1928?

NSN 5120-01-684-1928 is a Key,socket Head Screw, manufactured by Bondhus Corp, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-01-684-1928?

NSN 5120-01-684-1928 has 1 cross-referenced part number: 10666 (Bondhus Corp).

What NSN replaces 5120-01-684-1928?

There are 8 known substitutes for 5120-01-684-1928: 5330-00-031-7858, 4320-00-300-4051, 5930-00-439-0856 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 10666?

Key specifications for 10666: Overall Length: 9.3 INCHES NOMINAL IN; Special Features: CORROSION RESISTANT FINISH,RESISTS SOLVENT,ERGONOMIC HANDLE NON-SLIP HRIP,THERMOPLASTIC CORE WRAPPED IN CUSHIONED RUBBER,HANDLE IS COLORED CODED,RED FOR METRIC ON END OF HANDLE AND FRONT OF HANDLE,BALL END DRIVER INSERTS INTO SCREW AT 25 DEGREES ANGLE; Handle Overall Length: 4.3 INCHES NOMINAL IN; Drive Surface Size: 5.5 MILLIMETERS NOMINAL SINGLE END MM. 11 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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