Item:
ONSV21WS172

Original Vietnam War Era U.S. Navy MK76 Inert 25LB Practice Bomb

Item Description

Original Item: Only One Available. This is a lovely example of a totally inert, BATF compliant Mk 76 25 pound practice bomb from the Vietnam War. This practice bomb is completely void of any explosive content and cannot be converted as an explosive device.

Not Available For Export.

The 25-lb PB Mk 76 Mod 0, now obsolete, has a tear-drop shaped, cast-metal body which is centrally bored. The tail-tube assembly fits into the end of the bore. The conical afterbody covers the tail-tube assembly and is threaded to the body. The two sections are staked together to prevent unscrewing. The fin assembly is welded to the tail tube. Firing Pin Assembly Mk 1 Mod 0 and the signal are assembled into the bore of the body and secured in place by a safety cotter pin (not present on this example).

In the Mod 0 a single lug is positioned just forward of the center of gravity of the bomb. Some bombs of early manufacture have a suspension lug with a small opening which precludes use of the bomb on Shackle Mk 8 All Mods or Aero 14 and 15 series racks. Later manufacture provided lugs with a larger opening that permits use on this type shackle or rack. Activities may replace the older type lugs with lugs having the larger opening. The threads in the bomb body should be cleaned after the smaller lug is removed. Glycerine litharge cement should be applied to the threads to hold the newer type lug in position.

The Mod 1 is designed for air-burst firing only. The Time Fuze AN-M146E3 (not present) is used to fire the Signal Mk 4 Mod 3 which is seated in the bore of the body section. A setscrew is threaded into the nose of the bomb to retain the fuze and signal. Smoke produced from the detonated signal is discharged rearward through the tube of the fin assembly.

In the Mod 1 a single suspension lug is threaded into the bomb body just forward of the center of gravity and cemented in place. Two 3/8 inch indexing holes are drilled into the body to assist in the proper positioning of the bomb in the Aero 8A Practice Bomb Container.

The Mod 2 is similar in appearance and functioning to the Mod 0 except that two 3/8 inch indexing holes are drilled into the body at the center of gravity to assist in the proper positioning of the bomb in the Aero 8A Practice Bomb Container.

This lovely Mod 0 retains little of the original blue practice paint and no longer has any of the white arsenal stampings present. Unfortunately the suspension lug is missing and the tail fin assembly is dented and misshapen, a tell tale sign of long service life and use.

Comes more than ready for display.

  • This product is not available for international shipping.
  • Not eligible for payment with Paypal or Amazon

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