Harris Memory part number while Harris was still teamed up with Matra.
HM3-65728K-5
HM = Harris Memory (or "Harris Matra" according to Matra or Temic data book)
3 = Plastic DIP
65728 = 2K x 8 (typo in databook says part is 8K x 8)
K = 35nS
5 = Commercial temperature range
Appears to be same as:
Cypress -- CY7C128A-35PC... but that one is obsolete, also.
IDT -- 6116SA25TPG a bit faster but is probably as close as you're going to get.
Jameco 'clearance discounted price' is about 3x the regular price at Mouser.