PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4551Clip,electrical

Cooper Bussmann, Llc Dba Cooper Industries · NSN 5999-00-220-9757 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-00-220-9757 — this item is cataloged by the U.S. Government under National Stock Number 5999-00-220-9757. Primary manufacturer part number: 4551.
Features
  • Clip,electrical — FSC 5999
  • Mounting Method: UNTHREADED HOLE(S)
  • Unthreaded Mounting Hole Diameter: 0.175 INCHES NOMINAL IN
  • Style Designator: FERRULE CLIP W/STOP
  • Surface Treatment: NICKEL BODY
  • Hole Accommodation Diameter: 0.406 INCHES NOMINAL IN
  • Material: COPPER ALLOY BODY
  • Mounting Facility Quantity: 1
Applications
  • Applications requiring Copper Alloy Body construction
General Description

The Clip,electrical, cataloged under National Stock Number 5999-00-220-9757, is classified within Federal Supply Class 5999 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Cooper Bussmann, Llc Dba Cooper Industries. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5999-00-220-9757
Primary Part Number4551
Item NameClip,electrical
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerCooper Bussmann, Llc Dba Cooper Industries
StatusCANCELLED
Mounting MethodUNTHREADED HOLE(S)
Unthreaded Mounting Hole Diameter0.175 INCHES NOMINAL IN
Style DesignatorFERRULE CLIP W/STOP
Surface TreatmentNICKEL BODY
Hole Accommodation Diameter0.406 INCHES NOMINAL IN
MaterialCOPPER ALLOY BODY
Mounting Facility Quantity1
Mounting MethodUNTHREADED HOLE(S)
Unthreaded Mounting Hole Diameter0.175 INCHES NOMINAL IN
Style DesignatorFERRULE CLIP W/STOP
Surface TreatmentNICKEL BODY
Hole Accommodation Diameter0.406 INCHES NOMINAL IN
MaterialCOPPER ALLOY BODY
Mounting Facility Quantity1
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Shelf Life Code0
Criticality CodeQ
Unit of IssueEA
SMR CodeJZ
Weight0.0300 lbs
Cube0.0025 cu ft
Verified Substitutes 11
5120-00-079-9461 INTERCHANGEABLE
Remover,electrical Contact
5940-00-082-4665 INTERCHANGEABLE
Terminal Board
6240-00-583-3334Q4551 INTERCHANGEABLE
Lamp,incandescent
Amglo Kemlite Laboratories Inc
5950-00-645-3691 INTERCHANGEABLE
Coil,radio Frequency
2805-00-741-1712904P INTERCHANGEABLE
Piston,internal Combustion Engin
Federal-Mogul Corp Government Sales Dept
3110-01-015-57754551 INTERCHANGEABLE
Bearing,ball,stack
New Hampshire Ball Bearings Inc Div Hitech Division
5940-01-265-24384551 INTERCHANGEABLE
Terminal,stud
Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect
6810-01-370-42104551 INTERCHANGEABLE
Ion Exchange Compound
Sybron Chemicals Inc.
5306-01-481-55464551 INTERCHANGEABLE
Bolt,machine
Barnes Group Inc. Dba Barnes Distribution
6240-01-670-1658 INTERCHANGEABLE
Lamp,incandescent
Cross-Reference Index
Part NumberManufacturer
5960-63 Cooper Bussmann, Llc Dba Cooper Industries (USA)
4551 PRIMARY Cooper Bussmann, Llc Dba Cooper Industries (USA)
818893-1 Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin (USA)
818893 Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin (USA)
Related Parts
5120-00-079-9461INTERCHANGEABLE
REMOVER,ELECTRICAL CONTACT
5940-00-082-4665INTERCHANGEABLE
TERMINAL BOARD
6240-00-583-3334INTERCHANGEABLE
LAMP,INCANDESCENT
Q4551
5950-00-645-3691INTERCHANGEABLE
COIL,RADIO FREQUENCY
2805-00-741-1712INTERCHANGEABLE
PISTON,INTERNAL COMBUSTION ENGIN
904P
3110-01-015-5775INTERCHANGEABLE
BEARING,BALL,STACK
4551
5940-01-265-2438INTERCHANGEABLE
TERMINAL,STUD
4551
6810-01-370-4210INTERCHANGEABLE
ION EXCHANGE COMPOUND
4551
5306-01-481-5546INTERCHANGEABLE
BOLT,MACHINE
4551
6240-01-670-1658INTERCHANGEABLE
LAMP,INCANDESCENT
1310-01-670-8435INTERCHANGEABLE
CARTRIDGE,40 MILLIMETER,NON-LETH
4551

Frequently Asked Questions

What is NSN 5999-00-220-9757?

NSN 5999-00-220-9757 is a Clip,electrical, manufactured by Cooper Bussmann, Llc Dba Cooper Industries, classified under FSC 5999 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5999-00-220-9757?

NSN 5999-00-220-9757 has 4 cross-referenced part numbers: 5960-63 (Cooper Bussmann, Llc Dba Cooper Industries), 4551 (Cooper Bussmann, Llc Dba Cooper Industries), 818893-1 (Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin), 818893 (Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin).

What NSN replaces 5999-00-220-9757?

There are 11 known substitutes for 5999-00-220-9757: 5120-00-079-9461, 5940-00-082-4665, 6240-00-583-3334 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4551?

Key specifications for 4551: Mounting Method: UNTHREADED HOLE(S); Overall Length: 0.383 INCHES NOMINAL IN; Unthreaded Mounting Hole Diameter: 0.175 INCHES NOMINAL IN; Style Designator: FERRULE CLIP W/STOP. 20 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5999-00-220-9757 still in active supply?

NSN 5999-00-220-9757 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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