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733660-B21 ✓ Verified by PartsTable
HP · RAILS · SLIDING_RAIL
WHAT YOU NEED TO KNOW
Sliding rails are server-specific — match to the exact chassis. Upsell on everything that goes in racks.
PRODUCT OVERVIEW

HP 2U Small Form Factor Easy Install Rail Kit. Key specifications include Form Factor: 2U Rack. The unit ships in a SFF form factor suitable for standard rack-mount installations.

This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5975-01-641-3864, indicating validated use in U.S. government and defense logistics supply chains.

Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
RAILS SLIDING_RAIL SFF BAY 733660-B21
NSN: 5975-01-641-3864
FSC: 5975
CAGE: 28480 — HEWLETT-PACKARD COMPANY DBA HP (USA)
SPECIFICATIONS
Form Factor2U Rack
NSN5975-01-641-3864
COMPONENT DIAGRAM
LATCH SAS — 733660-B21 SAS CONN WITH TRAY — HOT-PLUG READY Tray: See server gen SAS — 733660-B21 BARE DRIVE — NO LATCH Needs caddy/tray to install 2.5" (70 x 100mm) SFF 2.5" DRIVE | — | SAS — Always ask: "Does it come with tray/caddy?" | Tray PN varies by server generation TITLE SFF 2.5" DRIVE PN 733660-B21 CAP — SAS
KEY FEATURES
SFF Form Factor
TECHNICAL CHARACTERISTICS (FLIS)
PART NAME ASSIGNED BY CONTROLLING AGENCYRACK,ELECTRICAL EQUIPMENT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
744114-001Compatible
HP Rail Kit 2U SFF Easy Install for DL380/DL385/DL560 G8/G9/G10
compatible
718225-001Compatible
HP Rail Kit 2U SFF Easy Install for DL380/DL385/DL560 G8/G9/G10 - Outside Left Rail
compatible
718228-001Compatible
HP Rail Kit 2U SFF Easy Install for DL380/DL385/DL560 G8/G9/G10 - Inside Rail
compatible
718497-001Compatible
HP Rail Kit 2U SFF Easy Install for DL380/DL385/DL560 G8/G9/G10 - Outside Right Rail
compatible
728348-001Compatible
HP Rail Kit 2U SFF Easy Install for DL380/DL385/DL560 G8/G9/G10 - Outside Right Rail
compatible
728390-001Compatible
HP Rail Kit 2U SFF Easy Install for DL380/DL385/DL560 G8/G9/G10 - Outside Left Rail
compatible
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
THIS PART SUBSTITUTES FOR 8
718225-001SUBSTITUTE
HP Rail Kit 2U SFF Easy Install for DL380/DL385/DL560 G8/G9/G10
HPE
718228-001SUBSTITUTE
HP Rail Kit 2U SFF Easy Install for DL380/DL385/DL560 G8/G9/G10
HPE
718497-001SUBSTITUTE
HP Rail Kit 2U SFF Easy Install for DL380/DL385/DL560 G8/G9/G10
HPE
728348-001SUBSTITUTE
HP Rail Kit 2U SFF Easy Install for DL380/DL385/DL560 G8/G9/G10
HPE
728390-001SUBSTITUTE
HP Rail Kit 2U SFF Easy Install for DL380/DL385/DL560 G8/G9/G10
HPE
729870-001SUBSTITUTE
HP Rail Kit 2U SFF Easy Install for DL380/DL385/DL560 G8/G9/G10
HPE
729870-002SUBSTITUTE
HP Rail Kit 2U SFF Easy Install for DL380/DL385/DL560 G8/G9/G10
HPE
744114-001SUBSTITUTE
HP Rail Kit 2U SFF Easy Install for DL380/DL385/DL560 G8/G9/G10
HPE
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FREQUENTLY ASKED QUESTIONS
What is 733660-B21?
733660-B21 is a HP 2U Small Form Factor Easy Install Rail Kit manufactured by HP. It is classified as a RAILS (SLIDING_RAIL).
What parts can replace 733660-B21?
There are 8 known substitutes for 733660-B21: 744114-001, 718225-001, 718228-001 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 733660-B21?
733660-B21 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5975-01-641-3864. This indicates validated use in U.S. government and defense supply chains.
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