Answer: USN
USN is a crossword puzzle answer that we have spotted 122 times.
Referring Clues:
- American mil. wing
 - Milit. branch
 - Swabs' grp.
 - Adm.'s milieu
 - Admiral's org.
 - R.M.N. and J.F.K. were once in it
 - Service for a 28-Across
 - Service arm: Abbr.
 - J.F.K. was in it
 - Inits. at sea
 - Swabber's org.
 - "Anchors Aweigh" grp.
 - Some capts. are part of it
 - Captain's org.
 - Part of the Defense Dept.
 - Salts are in it: Abbr.
 - See 51-Across
 - Org. with many captains
 - Publisher of All Hands magazine: Abbr.
 - Bull Halsey's org.
 - Org. with admirals
 - Rear admiral's org.
 - Seal's org.
 - Gitmo mil. branch
 - Nautilus launcher (abbr.)
 - Org. for Annapolis grads
 - "Anchors Aweigh" gp.
 - Org. for 21-Down
 - Admiral's dept.
 - Sub gp.
 - Popeye's org.
 - Fleet group (abbr.)
 - JFK served in it
 - Mil. sub-division?
 - RMN and JFK were once in it
 - DOD branch
 - Wing of the mil.
 - CPO's group
 - Org. for Jimmy Carter, once
 - Blue Angels org.
 - "Anchors Aweigh" branch: Abbr.
 - SEAL's group
 - Ensign's org.
 - "Top Gun" org.
 - "Chesty Anderson, ___" (1976 Shari Eubank film)
 - JFK served in it during WWII
 - NFL QB Roger Staubach served in it
 - Mil. branch
 - Seabee's org.
 - Seabees' org.
 - ''Anchors Aweigh'' org.
 - Halsey's org.
 - Annapolis monogram
 - SEALs' group
 - CPO's service
 - ''Anchors Aweigh'' branch, briefly
 - J.F.K.'s service branch
 - An ens. may be in it
 - Annapolis inits.
 - Annapolis letters
 - JFK's service branch
 - Seabee's mil. branch
 - Dept. of Defense branch
 - Mariner's letters
 - Fleet letters
 - Swab's org.
 - "Anchors Aweigh" branch, briefly
 - "Anchors Aweigh" org.
 - CPO's org.
 - CPO's branch
 - Admiral's branch (abbr.)
 - Annapolis org.
 - Blue Angels' org.
 - Blue Angels' org.
 - Mil. branch with ships
 - Shipping dept.?
 - Org. with a sub division
 - Seal's grp.
 - Military branch (Abbr.)
 - SEALs org.
 - Admiral's org.
 - Admiral's org.
 - Sailors' org.
 - Adm.'s org.
 - Ensigns' org.
 - Annapolis abbr.
 - Tars' org.
 - Adm.'s force
 - Sailor's org.
 - Admiral's organization: Abbr.
 - JFK joined it
 - Maritime military org.
 - Blue Angels grp.
 - Where many subs are served?: Abbr.
 - CPOs' org.
 - SEALs' org.
 - Its motto is "Non sibi sed patriae" (abbr.)
 - Mariner's org.
 - Admiral's inits.
 - Admirals' org.
 - Org. with SEALs
 - Seaman's org.
 - Adm.'s outfit
 - Service branch for JAG's Harmon Raab Jr.
 - Org. with subs
 - CPO's outfit
 - JFK's WWII service
 - Where SEALs serve
 - Seagoing mil. group
 - Gp. using sub titles?
 - Adm. or Capt.'s org., perhaps
 - Org. with a square-rigger on its seal
 - "Forged by the Sea" org.
 - CPO's service branch
 - SEALs' service: Abbr.
 - CPO's employer
 - Service branch for "jag" harmon raab (abbr.)
 - SEAL's mil. branch
 - Fleet org.
 - Mil. branch for sailors
 - Fleet inits.
 - Gp. featured in 45-Down
 
Last Seen In:
- New York Times - June 18, 2025
 - LA Times - March 28, 2025
 - New York Times - December 15, 2024
 - LA Times - June 23, 2024
 - LA Times - February 29, 2024
 - LA Times - December 14, 2023
 - New York Times - December 01, 2022
 - New York Times - May 08, 2022
 - LA Times - April 04, 2022
 - LA Times - December 24, 2021
 - New York Times - November 15, 2021
 - LA Times - September 10, 2021
 - Universal - February 23, 2021
 - New York Times - February 14, 2021
 - Universal - June 13, 2020
 - Netword - December 10, 2019
 - USA Today - October 21, 2019
 - USA Today - May 31, 2019
 - New York Times - May 28, 2019
 - Netword - March 18, 2019
 
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