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NSN: 4310-00-001-3493
Part Number(s):
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Cross Reference

These part numbers have the same form, fit, and function of 290963d
Item Number Cage
290963D 1ML14

Characteristic Codes

290963D spec. code meanings
Code Translation
AAXX Indicates the type of mount utilized to support the item.
AAYD The number of stages incorporated in the item.
AAYT The number of intake connections included on the item.
AAYU Indicates the type of intake connection included on the item.
AAYV The number of discharge connections included on the item.
AAYW Indicates the type of discharge connection included on the item.
AAYX Indicates the type of connection between the prime mover and the shaft.
ABEM Consists of plating, dip, and/or coating that cannot be wiped off. plating and/or coating is any chemical and/or metallic additive, electrochemical, or mild mechanical process which protects a body surface.
ABHP The dimension measured along the longitudinal axis with terminated points at the extreme ends of the item.
ABKW The distance measured in a straight line from the bottom to the top of an item.
ABMK An overall measurement taken at right angles to the length of an item, in distinction from thickness.
AENE The element, compound, or mixture of which the pump body is fabricated, excluding any surface treatment.
AENG Indicates the type of pumping element included on the item.
AEPJ The length of a straight line passing through the center of the discharge connection, with terminated points on the inside circumference.
AEPJ The length of a straight line passing through the center of the discharge connection, with terminated points on the inside circumference.
AERP An indication of the system for which the item is designed.
ASWT Designates the thread diameter, series/type, and number of threads per measurement scale of the intake connection.


Description: Rotary Vacuum Pump
Mfr. Cage 1ML14


Length: 9-1/64"

AAXX Mounting Type
AAYD Stage Quantity
AAYT Intake Connection Quantity
AAYU Intake Connection Type
Threaded internal
AAYV Discharge Connection Quantity
AAYW Discharge Connection Type
Unthreaded internal
AAYX Drive Connection Type
Single strand v-belt
ABEM Body Surface Treatment
Black oxide
ABHP Overall Length
9.000 inches
ABKW Overall Height
6.000 inches
ABMK Overall Width
4.750 inches
AENE Pump Body Material
Iron, cast
AENG Pumping Element Type
Sliding vane
AEPJ Err Default
Err default
AEPJ Discharge Connection Inside Diameter
0.500 inches
AERP System Design
ASWT Intake Connection Thread Size And Series/type Designator
1/2-14 npt

Technical Definition

Vacuum Pump, Rotary, also referenced with federal logistics item name code 29903 - A vacuum pump used to create extremely low pressure by means of a rotating element(s) in an enclosure. it is designed to be driven manually or by a prime mover which is not an integral part of the pump. it may include a vacuum storage tank(s) and various peripheral components such as driven pulleys.
National Stock Number (NSN): 4310-00-001-3493

Last Modified: 02/14/2017