Guns, over 200mm through 300mm

1. COVER ASSEMBLY NSN 1030-00-557-6919 P/N 5576919 · D0290100118 · 24C01055000
2. BLOCK,BREECH NSN 1030-00-384-1342 P/N BUWEPSDWG254816 · BUWEPSDWG254816 · 254816
3. GLAND,CYLINDER NSN 1030-00-380-4083 P/N 76674 · B76674 · 400734PC7
4. VALVE,OVERSIZE NSN 1030-00-380-4073 P/N B77345 · 77345 · 400720PC4
5. SHAFT NSN 1030-00-344-5668 P/N 43152 · E44316-96PC2 · 319045PC2
6. CYLINDER NSN 1030-00-344-5662 P/N 43188 · E44316-85PC1 · 319034PC1
7. PACKING ASSY NSN 1030-00-344-5659 P/N 43300 · E44316-81PC4 · 319030PC4
8. PISTON NSN 1030-00-344-5641 P/N 44815 · E46063-277PC4 · 318927PC4
9. BUSHING NSN 1030-00-344-5587 P/N C56396 · N62629-2 · 293712PC2
10. BUSHING,BODY NSN 1030-00-344-5586 P/N C57126 · N60954-2 · 293662PC2
11. BUSHING,HEAD END NSN 1030-00-344-5585 P/N N60945-1 · C57127 · 293662PC1
12. PISTON NSN 1030-00-344-5575 P/N E39038-18PC8 · 39857 · 290474PC8
13. BUSHING NSN 1030-00-344-5574 P/N E39038-18PC2 · 39877 · 290474PC2
14. PISTON NSN 1030-00-344-5573 P/N E39038-18PC1 · 39892 · 290474PC1
15. SWITCHING ASSEMBLY NSN 1030-00-336-4616 P/N E42893-131PC1 · E42893-131 · 369783PC1
16. TANK ASSY NSN 1030-00-334-2038 P/N 52010 · 481778 · SK170636
17. ROLLER AND STUD ASS NSN 1030-00-319-7267 P/N SK168816ITEM476 · LD256798ITEM22 · SK168802ITEM519
18. POWDER HOIST NSN 1030-00-026-5775 P/N BUWEPSSK94146 · BUWEPSSK94146 · SK94146
19. YOKE,GUN SIGHT ADJUSTING NSN 1030-01-260-8358 P/N 8685-690018 · 8685-690018-3
20. MUZZLE ATTACHMENT NSN 1030-01-258-3636 P/N BUWEPSDWG236161 · 236161
21. CHAMBER ASSEMBLY,AI NSN 1030-00-868-8066 P/N 279674 · 8432295
22. MACHINE GUN CRADLE ASSEMBLY NSN 1030-01-697-2453 P/N 3392AS134 · 3392AS1341
23. TRACK ASSEMBLY EXTENTION NSN 1030-01-602-7354 P/N 752-7068481-243 · H832-1664-A27
24. TRACK ASSEMBLY EXTENTION NSN 1030-01-602-7350 P/N 752-7068481-242 · H832-1664-A25

Ranked by how many manufacturer cross-references are on file. Every item is quote-only — the federal record carries no price and no stock, and Atlas publishes neither. Send a whole list →