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  • Armstrong 911125-110 Casing Capscrew highlighted, item 104 on the Series 4380 drawing
  • Armstrong Series 4380 parts drawing with Casing Capscrew 911125-110 highlighted

    • Armstrong Casing Capscrew 911125-110 for Series 4380, 4280, 4280-50 + 2 more

    $1.00
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    SKU:
    911125-110
    Shipping:
    Calculated at Checkout
    Brand:
    Armstrong
    Armstrong Part Number:
    911125-110
    Part Type:
    Hardware / Fitting
    Fits Series 4380 (1):
    1-1/2 x 1-1/2 x 6, 2 x 2 x 6, 3 x 3 x 6, 4 x 4 x 6W, 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 8W, 8 x 8 x 8, 1-1/2 x 1-1/2 x 10, 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
    Fits Series 4380 (2):
    5 x 5 x 11-1/2, 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
    Fits Series 4280 (1):
    1-1/2 x 1 x 6, 3 x 1-1/2 x 6, 3 x 2 x 6, 3 x 2-1/2 x 6, 4 x 3 x 6W, 1-1/2 x 1 x 8, 3 x 1-1/2 x 8, 3 x 2 x 8, 3 x 2-1/2 x 8, 4 x 3 x 8, 5 x 4 x 8, 6 x 4 x 8W, 8 x 8 x 8, 2 x 1 x 10, 2 x 1-1/2 x 10, 3 x 1-1/2 x 10, 3 x 2 x 10, 3 x 2-1/2 x 10
    Fits Series 4280 (2):
    4 x 3 x 10, 5 x 4 x 10, 6 x 4 x 10, 6 x 5 x 10, 8 x 6 x 10, 4 x 3 x 11-1/2, 5 x 4 x 11-1/2, 6 x 5 x 11-1/2, 8 x 6 x 11-1/2, 3 x 1-1/2 x 13, 3 x 2 x 13, 4 x 3 x 13, 6 x 4 x 13, 6 x 4 x 13H, 6 x 5 x 13, 6 x 5 x 13H, 8 x 6 x 13
    Fits Series 4280-50 (1):
    1-1/2 x 1 x 6, 3 x 1-1/2 x 6, 3 x 2 x 6, 3 x 2-1/2 x 6, 4 x 3 x 6, 1-1/2 x 1 x 8, 3 x 1-1/2 x 8, 3 x 2 x 8, 3 x 2-1/2 x 8, 4 x 3 x 8, 5 x 4 x 8, 6 x 4 x 8, 8 x 8 x 8, 2 x 1 x 10, 2 x 1-1/2 x 10, 3 x 1-1/2 x 10, 3 x 2 x 10, 3 x 2-1/2 x 10
    Fits Series 4280-50 (2):
    4 x 3 x 10, 5 x 4 x 10, 6 x 4 x 10, 6 x 5 x 10, 8 x 6 x 10
    Fits Series 4030 (1):
    1-1/2 x 1 x 6, 3 x 1-1/2 x 6, 3 x 2 x 6, 3 x 2-1/2 x 6, 4 x 3 x 6, 6 x 6 x 6, 3 x 1-1/2 x 8, 3 x 2 x 8, 3 x 2-1/2 x 8, 4 x 3 x 8, 5 x 4 x 8W, 6 x 4 x 8W, 6 x 5 x 8, 8 x 8 x 8, 2 x 1 x 10, 2 x 1-1/2 x 10, 3 x 1-1/2 x 10, 3 x 2 x 10
    Fits Series 4030 (2):
    3 x 2-1/2 x 10, 4 x 3 x 10, 5 x 4 x 10, 6 x 4 x 10, 6 x 5 x 10, 8 x 6 x 10W, 4 x 3 x 11-1/2, 5 x 4 x 11-1/2, 6 x 5 x 11-1/2, 8 x 6 x 11-1/2, 3 x 1-1/2 x 13, 3 x 2 x 13, 4 x 3 x 13, 4 x 3 x 13L, 6 x 4 x 13, 6 x 4 x 13H, 6 x 5 x 13
    Fits Series 4030 (3):
    6 x 5 x 13H, 8 x 6 x 13, 10 x 8 x 13, 8 x 6 x 15, 10 x 8 x 15
    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
    Drawing Item:
    4030: item 104, 44, 122; 4280: item 104, 44; 4300: item 104, 44; 4380: item 104, 44; 4280-50: item 104, 44
    Specification:
    1/2"-13NC x 1-1/4"; 1/2" x 1-1/4" (printed as 1/2"-16NC); 1/2"-13NC x 1-1/4" lg.
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    Parts Finder:
    canadianpumpshop.com/armstrong-parts-finder/
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    Product Description

    Armstrong Casing Capscrew – Part No. 911125-110

    Genuine Armstrong replacement casing capscrew, Armstrong part number 911125-110, for Series 4380, 4280, 4280-50, 4030, 4300 pumps. Shown as item 104 on the Series 4380 drawing (parts list 6043.129 / 6043.130) – highlighted in the pictures above.

    • Thread printed as 16NC in the ‘M’ list.

    Specification: ½"-13NC × 1¼"; ½" × 1¼" (printed as ½"-16NC); ½"-13NC × 1¼" lg.

    Fits these Armstrong pumps

    • Series 4380 (vertical in-line) – pump sizes 1½ × 1½ × 6, 2 × 2 × 6, 3 × 3 × 6, 4 × 4 × 6W, 1½ × 1½ × 8, 2 × 2 × 8, 3 × 3 × 8, 4 × 4 × 8, 5 × 5 × 8, 6 × 6 × 8W, 8 × 8 × 8, 1½ × 1½ × 10, 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
      • Designation: 'M'
      • Motor frames: 213JP, 215JP, 254JM, 256JM
      • Drawing item: 104, 44
    • Series 4280 (close coupled end suction) – pump sizes 1½ × 1 × 6, 3 × 1½ × 6, 3 × 2 × 6, 3 × 2½ × 6, 4 × 3 × 6W, 1½ × 1 × 8, 3 × 1½ × 8, 3 × 2 × 8, 3 × 2½ × 8, 4 × 3 × 8, 5 × 4 × 8, 6 × 4 × 8W, 8 × 8 × 8, 2 × 1 × 10, 2 × 1½ × 10, 3 × 1½ × 10, 3 × 2 × 10, 3 × 2½ × 10, 4 × 3 × 10, 5 × 4 × 10, 6 × 4 × 10, 6 × 5 × 10, 8 × 6 × 10, 4 × 3 × 11½, 5 × 4 × 11½, 6 × 5 × 11½, 8 × 6 × 11½, 3 × 1½ × 13, 3 × 2 × 13, 4 × 3 × 13, 6 × 4 × 13, 6 × 4 × 13H, 6 × 5 × 13, 6 × 5 × 13H, 8 × 6 × 13
      • Designation: 'M'
      • Motor frames: 213JP, 215JP, 254JM, 256JM
      • Drawing item: 104, 44
    • Series 4280-50 (pool & spa (NSF-50)) – pump sizes 1½ × 1 × 6, 3 × 1½ × 6, 3 × 2 × 6, 3 × 2½ × 6, 4 × 3 × 6, 1½ × 1 × 8, 3 × 1½ × 8, 3 × 2 × 8, 3 × 2½ × 8, 4 × 3 × 8, 5 × 4 × 8, 6 × 4 × 8, 8 × 8 × 8, 2 × 1 × 10, 2 × 1½ × 10, 3 × 1½ × 10, 3 × 2 × 10, 3 × 2½ × 10, 4 × 3 × 10, 5 × 4 × 10, 6 × 4 × 10, 6 × 5 × 10, 8 × 6 × 10
      • Designation: 'M'
      • Motor frames: 213JP, 215JP, 254JM, 256JM
      • Drawing item: 104, 44
    • Series 4030 (base mounted end suction) – pump sizes 1½ × 1 × 6, 3 × 1½ × 6, 3 × 2 × 6, 3 × 2½ × 6, 4 × 3 × 6, 6 × 6 × 6, 3 × 1½ × 8, 3 × 2 × 8, 3 × 2½ × 8, 4 × 3 × 8, 5 × 4 × 8W, 6 × 4 × 8W, 6 × 5 × 8, 8 × 8 × 8, 2 × 1 × 10, 2 × 1½ × 10, 3 × 1½ × 10, 3 × 2 × 10, 3 × 2½ × 10, 4 × 3 × 10, 5 × 4 × 10, 6 × 4 × 10, 6 × 5 × 10, 8 × 6 × 10W, 4 × 3 × 11½, 5 × 4 × 11½, 6 × 5 × 11½, 8 × 6 × 11½, 3 × 1½ × 13, 3 × 2 × 13, 4 × 3 × 13, 4 × 3 × 13L, 6 × 4 × 13, 6 × 4 × 13H, 6 × 5 × 13, 6 × 5 × 13H, 8 × 6 × 13, 10 × 8 × 13, 8 × 6 × 15, 10 × 8 × 15
      • Designation: 'M', 'MHD', 'MXHD'
      • Motor frames: 284TS, 286TS, 254T, 256T, 324TS, 326TS, 364TS, 365TS, 213T, 215T, 404TS, 405TS, 284T, 286T, 324T, 326T
      • Bearings: Regreaseable bearings, Oil lubricated bearings
      • Drawing item: 104, 44, 122
    • 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
      • Motor frames: 182TC, 184TC, 213TC, 215TC, 254TC, 256TC, 284TSC, 286TSC, 284TC, 286TC
      • Designation: 'S'
      • Drawing item: 104, 44

    Other parts for this pump

    Rebuilding a Series 4380 1½ × 1½ × 6? These parts are often replaced at the same time:

    ItemPartArmstrong part no.
    15Set screw916517-005
    16Set screw916519-104
    17Set screw916517-205
    21Shaft extension426992-071
    36Shaft key974515-400
    39Water slinger406622-000
    40Stuffing box / adapter426746-011
    40Stuffing box / adapter426746-031
    40Stuffing box / adapter426747-011
    40Stuffing box / adapter426747-031
    43Motor washer927113-100
    44Motor capscrew911121-108
    44Motor capscrew911125-108
    57Male connector939001-114
    59Flush line tubing997531-004
    62Mechanical seal kit975000-982
    62Mechanical seal kit9975001-813
    62Mechanical seal kit9975001-613
    62Mechanical seal kit9975001-817
    62Mechanical seal kit9975001-818
    70Shaft sleeve425869-001
    71Shaft sleeve spacer425868-005
    80Impeller427099-041
    83Impeller washer425742-001

    Showing 24 of 31 parts – see the full list in the parts finder.

    Not sure this is the right part?

    Use our Armstrong Pump Parts Finder: choose Series 4380, 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 911125-110
    Part Type Hardware / Fitting
    Fits Series 4380 (1) 1-1/2 x 1-1/2 x 6, 2 x 2 x 6, 3 x 3 x 6, 4 x 4 x 6W, 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 8W, 8 x 8 x 8, 1-1/2 x 1-1/2 x 10, 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
    Fits Series 4380 (2) 5 x 5 x 11-1/2, 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
    Fits Series 4280 (1) 1-1/2 x 1 x 6, 3 x 1-1/2 x 6, 3 x 2 x 6, 3 x 2-1/2 x 6, 4 x 3 x 6W, 1-1/2 x 1 x 8, 3 x 1-1/2 x 8, 3 x 2 x 8, 3 x 2-1/2 x 8, 4 x 3 x 8, 5 x 4 x 8, 6 x 4 x 8W, 8 x 8 x 8, 2 x 1 x 10, 2 x 1-1/2 x 10, 3 x 1-1/2 x 10, 3 x 2 x 10, 3 x 2-1/2 x 10
    Fits Series 4280 (2) 4 x 3 x 10, 5 x 4 x 10, 6 x 4 x 10, 6 x 5 x 10, 8 x 6 x 10, 4 x 3 x 11-1/2, 5 x 4 x 11-1/2, 6 x 5 x 11-1/2, 8 x 6 x 11-1/2, 3 x 1-1/2 x 13, 3 x 2 x 13, 4 x 3 x 13, 6 x 4 x 13, 6 x 4 x 13H, 6 x 5 x 13, 6 x 5 x 13H, 8 x 6 x 13
    Fits Series 4280-50 (1) 1-1/2 x 1 x 6, 3 x 1-1/2 x 6, 3 x 2 x 6, 3 x 2-1/2 x 6, 4 x 3 x 6, 1-1/2 x 1 x 8, 3 x 1-1/2 x 8, 3 x 2 x 8, 3 x 2-1/2 x 8, 4 x 3 x 8, 5 x 4 x 8, 6 x 4 x 8, 8 x 8 x 8, 2 x 1 x 10, 2 x 1-1/2 x 10, 3 x 1-1/2 x 10, 3 x 2 x 10, 3 x 2-1/2 x 10
    Fits Series 4280-50 (2) 4 x 3 x 10, 5 x 4 x 10, 6 x 4 x 10, 6 x 5 x 10, 8 x 6 x 10
    Fits Series 4030 (1) 1-1/2 x 1 x 6, 3 x 1-1/2 x 6, 3 x 2 x 6, 3 x 2-1/2 x 6, 4 x 3 x 6, 6 x 6 x 6, 3 x 1-1/2 x 8, 3 x 2 x 8, 3 x 2-1/2 x 8, 4 x 3 x 8, 5 x 4 x 8W, 6 x 4 x 8W, 6 x 5 x 8, 8 x 8 x 8, 2 x 1 x 10, 2 x 1-1/2 x 10, 3 x 1-1/2 x 10, 3 x 2 x 10
    Fits Series 4030 (2) 3 x 2-1/2 x 10, 4 x 3 x 10, 5 x 4 x 10, 6 x 4 x 10, 6 x 5 x 10, 8 x 6 x 10W, 4 x 3 x 11-1/2, 5 x 4 x 11-1/2, 6 x 5 x 11-1/2, 8 x 6 x 11-1/2, 3 x 1-1/2 x 13, 3 x 2 x 13, 4 x 3 x 13, 4 x 3 x 13L, 6 x 4 x 13, 6 x 4 x 13H, 6 x 5 x 13
    Fits Series 4030 (3) 6 x 5 x 13H, 8 x 6 x 13, 10 x 8 x 13, 8 x 6 x 15, 10 x 8 x 15
    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
    Drawing Item 4030: item 104, 44, 122; 4280: item 104, 44; 4300: item 104, 44; 4380: item 104, 44; 4280-50: item 104, 44
    Specification 1/2"-13NC x 1-1/4"; 1/2" x 1-1/4" (printed as 1/2"-16NC); 1/2"-13NC x 1-1/4" lg.
    Shipping cost: Inquire
    Parts Finder canadianpumpshop.com/armstrong-parts-finder/

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