SA | Gas Cylinder | D-28289-1 | Type 1C | March/1940 to July/1940 | 32001 - 50000 | Gas Trap. No Flutes, .50 inch front sight base, flat top on rear ring, marked "D-28289-1" top of rear ring. |
SA | Gas Cylinder | D-35449-1 | Type 2A | July/1940 to August/1941 | 50001 - 315000 | .50 inch front sight base, flat top on rear ring, marked "D-35449-SA" right side of rear ring. |
SA | Gas Cylinder | D28289 | Type 1A | January/1936 to January/1940 | 81 - 25000 | Gas Trap. Flutes .50 inch front sight base, flat top on rear ring, marked "D28289" top of rear ring. |
SA | Gas Cylinder | D28289 | Type 1B | January/1940 to March/1940 | 25001 - 32000 | Gas Trap. No Flutes, .50 inch front sight base, flat top on rear ring, unmarked. |
SA | Gas Cylinder | D35449 | Type 2B | August/1941 to May/1943 | 315001 - 1600000 | .50 inch front sight base, flat top on rear ring, unmarked. |
SA | Gas Cylinder | D35449 | Type 2C | May/1943 to December/1957 | 1600001 - 6100500 | .575-.580 inch front sight base, flat top on rear ring, unmarked. |
SA | Gas Cylinder Lock | B147426 | Type 1 | July/1940 to March/1945 | 50000 - 3592000 | Front face chamfered,no hump, unmarked. 1.225 - 1.335 inches high. Unmarked. |
SA | Gas Cylinder Lock | B147426 | Type 2 | March/1945 to October/1945 | 3592301 - 3888999 | Front face has no chamfer. Hardened and often marked with "M". |
SA | Gas Cylinder Lock | B147426 | Type 3A | January/1952 to December/1957 | 4200001 - 6100500 | Front face not chamfered. Hardened, high hump with square edges. May be punch marked, otherwise unmarked. 1.455 inches high. |
SA | Gas Cylinder Lock | B147426 | Type 3B | January/1955 to December/1957 | 5793000 - 6100500 | Front face not chamfered. Hardened, high hump with round edges.Unmarked. 1.455 inches high. |
SA | Gas Cylinder Lock Screw(Plug) | B147428 | Type 1 | July/1940 to January/1944 | 50000 - 2500000 | Single slot, no valve/poppet. Unmarked. |
SA | Gas Cylinder Lock Screw(Plug) | B7310079 | Type 3 | January/1944 to December/1957 | 2500001 - 6100500 | Return poppet valve, cross shaped slot. Various markings observed: "B S", "O", "P", small hexagon "P", large hexagon "P", "P" with crescent moon, "PBV", "P O", "P X", small triangle "P", large triangle "P", "T", "T A", "T O", "T PAX" and octagon. |
SA | Gas Cylinder Lock Screw(Plug) | S B147428 | Type 2 | April/1943 to January/1944 | 1470000 - 2500000 | Non-return valve, cross shaped slot. May show manufacture code. For use with M7 grenade launcher. |
SA | Lower Band | C46000 | Type 1A | January/1936 to April/1939 | 1 - 10000 | Milled arched profile with central groove and scallops. Marked C 46000. |
SA | Lower Band | C46000 | Type 1B | April/1939 to October/1940 | 10001 - 70000 | Milled arched profile with central groove and scallops. Unmarked. |
SA | Lower Band | C46000 | Type 2 | October/1940 to June/1943 | 70001 - 1650000 | Stamped arched profile with no groove or scallops. Unmarked. |
SA | Lower Band | C46000 | Type 3 | June/1943 to December/1957 | 1650001 - 6100500 | Stamped flat profile with no groove or scallops. Unmarked. |
SA | Lower Band Pin | N/A | Type 1 | January/1936 to December/1951 | 1 - 3888999 | Solid pin. |
SA | Lower Band Pin | N/A | Type 2 | January/1952 to December/1957 | 3889000 - 6100500 | Roll pin. |
SA | Operating Rod | 6535382 SA | 10 | June/1945 to December/1957 | 4200000 - 6100500 | Straight bolt lug,5/16 inch radius cut, flat side, marking on bottom. May have "SA" substituted for subcontractor initials |
SA | Operating Rod | 6535382-SA | N/A | January/1946 to December/1957 | 3888901 - 6100500 | |
SA | Operating Rod | 7790722-SA or RA | 11 | December/1957 to December/1957 | 1 - 6100500 | NM. Used on National Match rifles. Straight bolt lug,5/16 inch radius cut, flat side, marking on bottom. |
SA | Operating Rod | D 28296 | 1A | January/1936 to September/1937 | 1 - 200 | Slant bolt lug, no radius cut |
SA | Operating Rod | D35382 10 SA | 7 | June/1945 to October/1945 | 3850001 - 3900000 | Straight bolt lug, 5/16(?) radius cut, flat side, marking on bottom |
SA | Operating Rod | D35382 13 SA | 8 | June/1945 to October/1945 | 3850001 - 3900000 | Straight bolt lug, 5/16(?) radius cut, flat side, marking on bottom |
SA | Operating Rod | D35382 2 SA | 3 | January/1941 to April/1941 | 175001 - 219000 | Straight bolt lug, no radius cut, curved side, marking on bottom |
SA | Operating Rod | D35382 3 SA | 4 | April/1941 to October/1942 | 219001 - 940000 | Straight bolt lug, no radius cut, curved side, marking on bottom |
SA | Operating Rod | D35382 6 SA | 5 | October/1942 to December/1943 | 940001 - 2250000 | Straight bolt lug, no radius cut, curved side, marking on bottom |
SA | Operating Rod | D35382 9 SA | 6 | December/1943 to January/1945 | 2250001 - 3450000 | Straight bolt lug, no radius cut, curved side, marking on bottom |
SA | Operating Rod | D35382 9 SA | 6A | January/1945 to June/1945 | 3450001 - 3850000 | Straight bolt lug, no radius cut, flat side, marking on bottom |
SA | Operating Rod | D35382 SA | 9 | January/1936 to December/1957 | 1 - 6100500 | Straight bolt lug,5/16 inch radius cut, flat side, marking on bottom. Used on armory rebuilt rifles. |
SA | Operating Rod | D35382-0 | 1B | September/1937 to October/1938 | 201 - 5000 | Slant bolt lug, no radius cut, curved side, marking on top |
SA | Operating Rod | D35382-0 | 1C | October/1938 to January/1940 | 5001 - 24000 | Slant bolt lug, no radius cut, curved side, marking on bottom |
SA | Operating Rod | D35382-1-SA | 2B | April/1940 to January/1941 | 38001 - 175000 | Straight bolt lug, no radius cut, curved side, marking on bottom |
SA | Operating Rod | D35382-1SA or -1 SA | 2A | April/1940 to April/1940 | 34001 - 38000 | Straight bolt lug, no radius cut, curved side, marking on bottom |
SA | Operating Rod | None | 1D | January/1940 to April/1940 | 24001 - 34000 | Straight bolt lug, no radius cut, curved side, NO MARKING |
SA | Operating Rod Catch Assembly | C46027 | Type 1 | January/1936 to July/1942 | 1 - 700000 | Marked with "O". Right and Left fork 0.08 in wide, width at accelerator rivet 0.73 in. |
SA | Operating Rod Catch Assembly | C46027 | Type 2 | July/1942 to December/1957 | 700001 - 6100500 | Unmarked. Right fork 0.10 in wide and Left fork 0.07 in wide, width at accelerator rivet 0.79 in. |
SA | Operating Rod Spring | B46019 | N/A | January/1936 to November/1940 | 1 - 79000 | Square cross section. Utilized in conjunction with a compensating spring. |
SA | Operating Rod Spring | B46019 | N/A | January/1936 to November/1940 | 79001 - 160000 | Square cross section, no compensating spring. |
SA | Operating Rod Spring | SA14675/B147658 | N/A | December/1940 to December/1957 | 160001 - 6100500 | Round cross section. |
SA | Receiver | D28291 | N/A | January/1936 to September/1939 | 1 - 16000 | |
SA | Receiver | D28291-1 | N/A | September/1939 to April/1940 | 16001 - 35000 | |
SA | Receiver | D28291-12SA | N/A | July/1941 to October/1941 | 280001 - 350000 | |
SA | Receiver | D28291-13SA | N/A | October/1941 to November/1941 | 350001 - 400000 | |
SA | Receiver | D28291-14SA | N/A | November/1941 to February/1942 | 400001 - 490000 | |
SA | Receiver | D28291-17 | N/A | February/1942 to April/1943 | 490001 - 1500000 | |
SA | Receiver | D28291-2 | N/A | April/1940 to September/1940 | 35001 - 65000 | |
SA | Receiver | D28291-27 | N/A | April/1943 to July/1943 | 1500001 - 1765200 | |
SA | Receiver | D28291-29 | N/A | July/1943 to September/1943 | 1765201 - 1900000 | |