PartsTable
Technical Data Sheet
AR4-78B ✓ Verified by PartsTable
HP · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The HP StoreFabric SAN Director Switch portfolio is the industry’s most powerful Fibre Channel switching infrastructure, providing reliable, scalable, high-performance foundation for private cloud storage and highly virtualized environments. The SN8000B leverages proven DC SAN Director Switch technology and consists of an 8-slot 14U chassis and a 4-slot 9U chassis. The director provides up to 384 16 Gb FC ports and up to 32 QSFP based Inter Chassis Links (ICLs) which are equivalent to 128 16 Gb FC ports.

It also provide up to 8.2 Tb/s of total aggregate bandwidth and 512 Gb/s of slot bandwidth.<br><br>The DC SAN Director Switch targets traditional data centers and consist of an 8-slot 14U chassis and a 4-slot 9U chassis. The director provides up to 512 8 Gb FC ports for 4.1 Tb/s of total aggregate bandwidth and 256 Gb/s of slot bandwidth. In the future, customers may convert a DC chassis in production environments to a SN8000B Director with non-disruptive core blade replacements.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3455-00-404-5841, indicating validated use in U.S. government and defense logistics supply chains.

WHERE IT FITS
AR4-78B
NSN: 3455-00-404-5841
FSC: 3455
CAGE: 03914 — ARMSTRONG BROS TOOL CO (USA)
SPECIFICATIONS
shapeRECTANGULAR
materialCARBIDE
edge_typeRIGHT HAND TURNING
overall_width0.250 INCHES NOMINAL IN
overall_length1.500 INCHES NOMINAL IN
unable_to_decodeUNABLE TO DECODE
material_locationTIP
overall_thickness0.250 INCHES NOMINAL IN
cutting_edge_finishGROUND TO SHAPE
material_type_for_which_designedFERROUS METAL AND NONFERROUS METAL
NSN3455-00-404-5841
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR MFR: HP CUTTER BIT,TOOL HOLDER TITLE COMPONENT PN AR4-78B MFR HP CUTTER BIT,TOOL HOLDER
KEY FEATURES
SHAPE: RECTANGULAR
MATERIAL: CARBIDE
MATERIAL TYPE FOR WHICH DESIGNED: FERROUS METAL AND NONFERROUS METAL
MATERIAL LOCATION: TIP
EDGE TYPE: RIGHT HAND TURNING
CUTTING EDGE FINISH: GROUND TO SHAPE
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL WIDTH0.250 INCHES NOMINAL IN
SHAPERECTANGULAR
MATERIALCARBIDE
OVERALL LENGTH1.500 INCHES NOMINAL IN
MATERIAL TYPE FOR WHICH DESIGNEDFERROUS METAL AND NONFERROUS METAL
MATERIAL LOCATIONTIP
EDGE TYPERIGHT HAND TURNING
CUTTING EDGE FINISHGROUND TO SHAPE
UNABLE TO DECODEUNABLE TO DECODE
OVERALL THICKNESS0.250 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
AR 4 883Interchangeable
interchangeable cross-reference
interchangeable
STYLEAAR4Interchangeable
interchangeable cross-reference
interchangeable
A-A-51143Interchangeable
interchangeable cross-reference
interchangeable
876-2-1Interchangeable
interchangeable cross-reference
interchangeable
AR4-370Interchangeable
Same NIIN cross-reference
interchangeable
AR-4/883Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AR4-78B?
AR4-78B is a CUTTER BIT,TOOL HOLDER manufactured by HP.
What parts can replace AR4-78B?
There are 6 known substitutes for AR4-78B: AR 4 883, STYLEAAR4, A-A-51143 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AR4-78B?
AR4-78B is cataloged in the Federal Logistics Information System (FLIS) under NSN 3455-00-404-5841. This indicates validated use in U.S. government and defense supply chains.
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