With what type of chambering is the F bolt n (lbf) and the P max (bar) 3900?
CREATE TABLE table_29164 (
    "Chambering" text,
    "P1 diameter (mm)" text,
    "A external (cm 2 )" text,
    "P max ( bar )" real,
    "F bolt ( kgf )" real,
    "F bolt" text
)
SELECT "Chambering" FROM table_29164 WHERE "F bolt" = 'N (lbf)' AND "P max ( bar )" = '3900'
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: With what type of chambering is the F bolt n (lbf) and the P max (bar) 3900? ### Input: CREATE TABLE table_29164 (
    "Chambering" text,
    "P1 diameter (mm)" text,
    "A external (cm 2 )" text,
    "P max ( bar )" real,
    "F bolt ( kgf )" real,
    "F bolt" text
) ### Response: SELECT "Chambering" FROM table_29164 WHERE "F bolt" = 'N (lbf)' AND "P max ( bar )" = '3900'