2N4249
The Fairchild S035928 (P/N 151-0342-00) is a PNP Si small signal transistor.
Package: TO-106
NSN: 5961-00-246-2427
RPR: Tektronix RPR for 151- Transistors page 456
Equivalents
The Sphere Tek cross-reference indicates that 2N4249 is equivalent.
Additional searching on the internet for the NSN will lead to 2N4249 (same number as Sphere provides) as well as 2N4429 (note the similarity - likely a transposition). The latter is definitely incorrect, as that is an NPN RF power transistor and not in TO-106 package.
Specs
Exact specs of the 151-0342-00 are unknown; the 2N4249 is 60V, 0.1A, hFE 100-300.