USS meaning in Space Science ?

Answer: What is United States Standard mean?

United States Standard thread (USS thread), also known as Sellers Standard thread, Franklin Institute thread and American Standard thread, is a standard for inch based threaded fasteners and washers.

The USS standard is no longer supported. It, together with the SAE fastener standard, was incorporated into the Unified Thread Standard. However, the term, USS, continues to be used occasionally today to describe inch based threaded fasteners with a coarse thread pitch and inch based washers that are a little bit larger than the corresponding SAE washer. The Unified Thread Standard uses the term UNC (Unified Coarse) to describe a fastener that previously would have been designated USS and the Unified Thread Standard uses the term UNF (Unified Fine) to describe a fastener that would have previously been designated SAE.

reference

Full Form	Category
Universities Superannuation Scheme	Academic & Science
Unusual Star Shape	Academic & Science
University Student Senate	Academic & Science
University of Southern Somalia	Academic & Science
Uxbridge Secondary School	Academic & Science
Sancti Spiritus	Airport Code
Union Syndicale Suisse	Community
Unformatted System Services	Computing
Unix System Services	Computing
Upload Speed Sense	Computing
Unstable Steady State	Electronics
United States Spaceship	General
Uniformly Spaced Subcarriers	General
Unites States Ship	General
Undergraduate Student Services	General
Ubiquitous Synergy Seeker	General
United Star Space	General
Ultrasound Scan Suggest	General
United States Spy	General
Universe Star Ship	General
Silversides Submarine	General
The United States Of Saturn	General
United Star Ship	General
Uncorrected Sum Of Squares	General
User Submissions System	General
United Space Ship	General
United States Starship	General
Universal Star Ship	General
United Ship Of Stacey	General
United Solar Systems	General
United State Ship	General
Underground S Secret	General
Uphill Start Support	General
Unlimited Super Stock	General
Under Seat Steering	General
Uberschlag Schutz System	General
United States Senate	Governmental
United Seamen's Service	Governmental
Ultimate Short Shifter	Governmental
Ujedinjena Seljačka Stranka	Governmental
ultrasound scan	Medical
Universal Spine System	Medical
Upshaw-Schulman syndrome	Medical
Uptake Signal Sequence	Medical
Ureterosigmoidostomy	Medical
Upshaw–Schulman Syndrom	Medical
United States Ships	Military and Defence
Ultimate Shear Stress	Physics Related
Universal Studios Singapore	Regional
United States Ship	Space Science
United States Standard	Space Science
Utility Support Structure	Space Science
United States Swimming	Sports
Universal Spinal System	Technology
Sancti Spíritus Airport	Transport & Travel