271837-003, is the HP gpn number for the product described as 36.4 GB ULTRA320 SCSI 10K RPM Universal Hot Plug Hard Drive. Further details below.
HP Option Part #: 286713-B22
HP Spare Part #: 289041-001 2-5-2/DPN: FE-23025-01
GPN: 271837-003 Model #: BD03685A24, BD03686223, BD036863AC, BD03688272
Assembly Part #: 286712-004, 300955-014, 306637-001, 360205-007
* Please note that this model 271837-003 is aggregated under HP option # 286713-B22 and HP spare # 289041-001. HP models that are acceptable substitutes include the following: BD03685A24, BD03686223, BD036863AC, BD03688272, 286712-004, 300955-014, 306637-001, 360205-007. These are 100% identical to the product shown above.