Is there likely to be much nitrogen in the Moon's inner crust? My thinking is that if we can extract enough nitrogen from the moon, we may be able to build a Terran space elevator out of Kevlar without waiting for nanotube research to advance further as discussed in more detail in Where will we get nitrogen in space?
This article from Nature reports that lunar nitrogen is mostly confined near the surface and apparently came from outside sources including Earth. Probably the Moon, with almost no atmosphere and too close to the Sun to allow ammonia ice, has no native nitrogen source and thus no nitrogen beyond what outside sources can penetrate. The abstract also suggests that the nitrogen source would be clarified by comparing our current near-side samples with future samples from the far side.