Product Description
Armstrong Air Vent (⅛" NPT) – Part No. 939018-101
Genuine Armstrong replacement air vent, Armstrong part number 939018-101, for Series 4300, 4600 pumps. Shown as item 68 on the Series 4300 drawing (parts list 6043.132 / 6043.134 / 6043.136 / 6043.137) – highlighted in the pictures above.
Specification: ⅛" NPT
Fits these Armstrong pumps
- Series 4300 (vertical in-line) – pump sizes 1½ × 1½ × 6, 2 × 2 × 6, 3 × 3 × 6, 4 × 4 × 6, 1½ × 1½ × 8, 2 × 2 × 8, 3 × 3 × 8, 4 × 4 × 8, 5 × 5 × 8, 6 × 6 × 8, 8 × 8 × 8, 2 × 2 × 10, 3 × 3 × 10, 4 × 4 × 10, 6 × 6 × 10, 8 × 8 × 10, 4 × 4 × 11½, 5 × 5 × 11½, 6 × 6 × 11½, 8 × 8 × 11½, 3 × 3 × 13, 4 × 4 × 13, 5 × 5 × 13, 5 × 5 × 13H, 6 × 6 × 13, 6 × 6 × 13H, 8 × 8 × 13, 10 × 10 × 13, 8 × 8 × 15, 10 × 10 × 15, 12 × 12 × 13, 14 × 14 × 14, 14 × 14 × 15, 16 × 16 × 15, 16 × 16 × 15L, 16 × 16 × 15H, 12 × 12 × 17
- Construction: Bronze fitted (125#), Ductile bronze fitted (250#), All bronze (125#)
- Service: Outside seal – Armstrong, Outside seal – John Crane std., Outside seal – John Crane t.c., Outside seal – Durametallic std., Outside seal – Durametallic t.c., Inside mechanical seal
- Drawing item: 68
- Series 4600 (horizontal split case) – pump sizes 5 × 4 × 10L, 6 × 5 × 10H, 6 × 5 × 10L, 8 × 6 × 10L, 8 × 6 × 10H, 10 × 8 × 11L, 10 × 8 × 11H, 5 × 4 × 12L, 5 × 4 × 12H, 6 × 5 × 12L, 6 × 5 × 12H, 8 × 6 × 12½L, 8 × 6 × 12½H, 12 × 10 × 12½H, 10 × 8 × 14L, 10 × 8 × 14H, 6 × 5 × 15L, 6 × 5 × 15H, 8 × 6 × 15L, 8 × 6 × 15H, 12 × 10 × 15H, 12 × 8 × 18
- Drawing item: 24
Other parts for this pump
Rebuilding a Series 4300 1½ × 1½ × 6? These parts are often replaced at the same time:
Showing 24 of 52 parts – see the full list in the parts finder.
Not sure this is the right part?
Use our Armstrong Pump Parts Finder: choose Series 4300, your pump size and motor to see every part on the drawing. Or send us your pump’s nameplate details – call (416) 236-2338 or email sales@bramhambros.com. Bramham Bros is an authorized Armstrong dealer.
Product Videos
Custom Field
Brand Armstrong
Armstrong Part Number 939018-101
Part Type Hardware / Fitting
Fits Series 4300 (1) 1-1/2 x 1-1/2 x 6, 2 x 2 x 6, 3 x 3 x 6, 4 x 4 x 6, 1-1/2 x 1-1/2 x 8, 2 x 2 x 8, 3 x 3 x 8, 4 x 4 x 8, 5 x 5 x 8, 6 x 6 x 8, 8 x 8 x 8, 2 x 2 x 10, 3 x 3 x 10, 4 x 4 x 10, 6 x 6 x 10, 8 x 8 x 10, 4 x 4 x 11-1/2, 5 x 5 x 11-1/2
Fits Series 4300 (2) 6 x 6 x 11-1/2, 8 x 8 x 11-1/2, 3 x 3 x 13, 4 x 4 x 13, 5 x 5 x 13, 5 x 5 x 13H, 6 x 6 x 13, 6 x 6 x 13H, 8 x 8 x 13, 10 x 10 x 13, 8 x 8 x 15, 10 x 10 x 15, 12 x 12 x 13, 14 x 14 x 14, 14 x 14 x 15, 16 x 16 x 15, 16 x 16 x 15L
Fits Series 4300 (3) 16 x 16 x 15H, 12 x 12 x 17
Fits Series 4600 (1) 5 x 4 x 10L, 6 x 5 x 10H, 6 x 5 x 10L, 8 x 6 x 10L, 8 x 6 x 10H, 10 x 8 x 11L, 10 x 8 x 11H, 5 x 4 x 12L, 5 x 4 x 12H, 6 x 5 x 12L, 6 x 5 x 12H, 8 x 6 x 12-1/2L, 8 x 6 x 12-1/2H, 12 x 10 x 12-1/2H, 10 x 8 x 14L, 10 x 8 x 14H, 6 x 5 x 15L
Fits Series 4600 (2) 6 x 5 x 15H, 8 x 6 x 15L, 8 x 6 x 15H, 12 x 10 x 15H, 12 x 8 x 18
Drawing Item 4300: item 68; 4600: item 24
Specification 1/8" NPT
Shipping cost: Inquire
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