Parker Denison T7BS-B12-2R00-A1M1-NOP Hydraulic Vane Pump – 054-45499-000S

Series-specific model code

Original model: T7BS-B12-2R00-A1M1-NOP

Code coverage: Evidence-supported meanings shown. Confirmation required for remaining configuration.

Evidence profile: T7BS exact single/double/triple ordering-code profile (HY29-0001/UK evidence revision 6)

Code segment	Evidence-bound meaning
T7BS	Series: T7BS.
B12	Pump core (B family) documented displacement: 41.0 cm3/rev.
2	Shaft code 2: keyed ISO R775 shaft.
R	Rotation: right-hand (clockwise), viewed from the shaft end.
00	Porting code: 00 (standard porting).
A	Design letter: A.
1	Seal code 1: S1 BUNA N seal class.
M1	Connection/modification code: M1.
NOP	Special or legacy trailing code: NOP. Contact us to confirm.

The exact longest series prefix determines the number and family of pump-core slots. Displacement codes are decoded only through the family table printed for that slot; identical codes are not generalized across A-AS, A-ASW, B, C, D or E cores. Shaft identity remains tied to the complete series. R/L is interpreted from the shaft-end view. Porting 00 is standard; other catalog-shaped porting codes are retained and require physical-orientation confirmation. Unsupported families and unknown special tails fail closed without blocking earlier evidence-supported fields.