@misc{indiciae7ba2450dfb53,
  title = {Flared-tube fittings with replaceable seat inserts},
  author = {Ballinger, V. J. and Grant, L. E. and Howland, B. T.},
  year = {1969},
  url = {https://ntrs.nasa.gov/citations/19690000495},
  note = {Source identifier: 19690000495}
}