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FLEET AND TRANSPORTATION NFT1USA: 866.529.7664 | Canada: 800.563.1717 | lawsonproducts.com
AIR BRAKE SYSTEM PARTS
Brass Air Brake Fittings for Nylon Tubing
• Fittings are shipped with nuts, sleeves and insertspreassembled, ready to slip onto tubing
• Meets D.O.T. FMVSS 571.106• Temperature range: –40°F to +200°F (–40°C to +93°C)• Exceeds pressure requirements of automotive
air brake systems
Assembly Instructions1. Cut tubing squarely.2. Insert tubing into fitting until bottomed on seat.3. Tighten nut with wrench until one thread remains visible
on the fitting body; or, the nut should be screwed down finger-tight, then wrench-tightened as indicated in the table (this will allow for a number of remakes).
Tube Size (Inches)
Additional Number of Turns from Hand-Tight
1/4 33/8 and 1/2 45/8 and 3/4 3-1/2
• Typical applications include air brake systems,air control and gauge lines
• Used with nylon tubing (SAE J844, Type 3)
Fitting Dimension A
(Inches)Fitting
Dimension BItemNo.
Pkg.Qty.
1/41/8-27 1511564 51/4-18 1511565 5
3/8
1/8-27 1511604 51/4-18 1511566 53/8-18 1511567 51/2-14 1511568 5
1/21/4-18 1511599 53/8-18 1511569 51/2-14 1511570 5
5/83/8-18 1511605 53/4-14 1511607 21/2-14 1511571 5
3/4 1/2-14 1511606 2
Fitting Dimension A
(Inches)Fitting
Dimension BItemNo.
Pkg.Qty.
1/41/8-27 1511551 51/4-18 1511552 5
3/8
1/8-27 1511608 51/4-18 1511553 53/8-18 1511554 51/2-14 1511555 5
1/21/4-18 1511600 53/8-18 1511556 51/2-14 1511557 2
5/83/8-18 1511609 21/2-14 1511558 2
3/41/2-14 1511559 23/4-14 1511560 2
90° Male ElbowTube (A) x Male NPT (B)
Male ConnectorTube (A) x Male NPT (B)
Fitting Dimension A
(Inches)Fitting
Dimension BItemNo.
Pkg.Qty.
1/4 1/8-27 1511583 2
3/81/4-18 1511584 23/8-18 1511585 21/2-14 1511603 2
1/21/4-18 1511587 23/8-18 1511586 21/2-14 1511588 2
5/8 1/2-14 1511589 2
Fitting Dimension A
(Inches)
Fitting Dimension B
(Inches)ItemNo.
Pkg.Qty.
1/4 1/4 1511539 53/8 3/8 1511540 51/2 1/2 1511541 25/8 5/8 1511542 23/4 3/4 1511543 2
45° Male ElbowTube (A) x Male NPT (B)
UnionTube (A) x Tube (B)
Fitting Dimension A
(Inches)
Fitting Dimension B
(Inches)ItemNo.
Pkg.Qty.
5/8 5/8 1511546 2
Fitting Dimension A
(Inches)
Fitting Dimension B
(Inches)
Fitting Dimension C
(Inches)ItemNo.
Pkg.Qty.
1/4 1/4 1/4 1511610 2
3/83/8 3/8 1511561 23/8 1/4 1511562 2
1/2 1/2 1/2 1511563 2
Union ElbowTube (A) x Tube (B)
Union TeeTube (A) x Tube (B) x Tube (C)
®FLEET AND TRANSPORTATIONNFT2
AIR BRAKE SYSTEM PARTS
Brass Air Brake Fittings for Nylon Tubing
Fitting Dimension A
(Inches)ItemNo.
Pkg.Qty.
1/4 1511594 53/8 1511595 51/2 1511596 55/8 1511597 53/4 1511598 5
NutTube (A)
Brass InsertTube (A)• For SAE J844 Tubing
Fitting Dimension A
(Inches)Length(Inches)
Insert O.D.
(Inches)ItemNo.
Pkg.Qty.
1/4 0.53 0.163 1511698 253/8 0.64 0.245 1511694 251/2 0.81 0.37 1511695 255/8 0.86 0.434 1511696 253/4 1.04 0.559 1511697 25
Fitting Dimension A
(Inches)Fitting
Dimension B
Fitting Dimension C
(Inches)ItemNo.
Pkg.Qty.
1/4 1/8-27 1/4 1511572 5
3/81/4-18 3/8 1511573 53/8-18 3/8 1511574 5
1/2 3/8-18 1/2 1511575 5
Male Run TeeTube (A) x Male NPT (B) x Tube (C)
Male Branch TeeTube (A) x Tube (B) x Male NPT (C)
Fitting Dimension A
(Inches)
Fitting Dimension B
(Inches)Fitting
Dimension CItemNo.
Pkg.Qty.
3/83/8 1/4-18 1511576 53/8 1/8-27 1511577* 53/8 3/8-18 1511578 5
1/2 1/2 3/8-18 1511579 5
*Available in Canada Only
Fitting Dimension A
(Inches)ItemNo.
Pkg.Qty.
1/4 1511590 103/8 1511591 101/2 1511592 105/8 1511538 103/4 1511593 10
SleeveTube (A)
Female ConnectorTube (A) x Female NPT (B)
Fitting Dimension A
(Inches)Fitting
Dimension BItemNo.
Pkg.Qty.
3/81/8-27 1511548* 51/4-18 1511547 53/8-18 1511549 5
*Available in Canada Only
FLEET AND TRANSPORTATION NFT3USA: 866.529.7664 | Canada: 800.563.1717 | lawsonproducts.com
AIR BRAKE SYSTEM PARTS
Push-To-Connect Brass Air Brake Fittings• Quick and easy assembly; reusable• Construction: CA360 brass with ethylene propylene O-ring• Pressure range vacuum to 150 PSI• Temperature range: –40°F to +250°F (–40°C to +121°C)
• D.O.T. Approved for Air Brake Applications• Use with nylon tubing
Male ConnectorsTube (A) x Male NPT (B)
Fitting Dimension A
(Inches)Fitting
Dimension BItemNo.
Pkg.Qty.
5/32 1/8-27 1511623 5
1/41/8-27 1511686 51/4-18 1511687 53/8-18 1511624 5
3/8
1/8-27 1511625 51/4-18 1511620 53/8-18 1511688 51/2-14 1511626 5
1/21/4-18 1511627 53/8-18 1511689 51/2-14 1511628 2
5/83/8-18 1511661 21/2-14 1511629 2
Male ElbowsTube (A) x Male NPT (B)
Fitting Dimension A
(Inches)Fitting
Dimension BItemNo.
Pkg.Qty.
5/32 1/8-27 1511621 5
1/41/8-27 1511690 51/4-18 1511691 53/8-18 1511631 5
3/8
1/8-27 1511630 51/4-18 1511692 53/8-18 1511693 51/2-14 1511632 5
1/21/4-18 1511633 53/8-18 1511669 51/2-14 1511634 5
5/83/8-18 1511670 51/2-14 1511635 5
Union TeesTube (A) x Tube (B) x Tube (C)
Bulkhead UnionsTube (A) x Tube (B)
Fitting Dimension A
(Inches)
Fitting Dimension B
(Inches)
Fitting Dimension C
(Inches)ItemNo.
Pkg.Qty.
1/4 1/4 1/4 1511684 23/8 3/8 3/8 1511685 21/2 1/2 1/2 1511622 2
Fitting Dimension A
(Inches)
Fitting Dimension B
(Inches)ItemNo.
Pkg.Qty.
1/4 1/4 1511636 53/8 3/8 1511637 5
Swivel Male Branch TeesTube (A) x Tube (B) x Male NPT (C)
Fitting Dimension A
(Inches)
Fitting Dimension B
(Inches)Fitting
Dimension CItemNo.
Pkg.Qty.
1/41/4 1/8-27 1511653 51/4 1/4-18 1511654 5
3/83/8 1/4-18 1511655 53/8 3/8-18 1511656 5
1/2 1/2 1/4-18 1511678 2
Fitting Dimension A
(Inches)
Fitting Dimension B
(Inches)ItemNo.
Pkg.Qty.
5/32 5/32 1511612 51/4 1/4 1511617 53/8 3/8 1511618 51/2 1/2 1511619 25/8 5/8 1511613 2
UnionsTube (A) x Tube (B)
Male Run TeesMale NPT (A) x Tube (B) x Tube (C)
Fitting Dimension A
(Inches)
Fitting Dimension B
(Inches)
Fitting Dimension C
(Inches)ItemNo.
Pkg.Qty.
1/8-27 1/4 1/4 1511649 5
1/4-181/4 1/4 1511650 53/8 3/8 1511651 5
3/8-18 3/8 3/8 1511652 5
Female ConnectorsTube (A) x Female NPT (B)
Fitting Dimension A
(Inches)Fitting
Dimension BItemNo.
Pkg.Qty.
1/41/8-27 1511657 51/4-18 1511658 5
3/81/4-18 1511659 53/8-18 1511660* 5
*Available in Canada Only
®FLEET AND TRANSPORTATIONNFT4
AIR BRAKE SYSTEM PARTS
Push-To-Connect Brass Air Brake Fittings
45° Male ElbowsTube (A) x Male NPT (B)
Fitting Dimension A
(Inches)Fitting
Dimension BItemNo.
Pkg.Qty.
1/41/8-27 1511638 21/4-18 1511639 2
3/81/4-18 1511640 23/8-18 1511641 2
1/23/8-18 1511642 21/2-14 1511643 2
5/8 1/2-14 1511644 2
Male Branch TeesTube (A) x Tube (B) x Male NPT (C)
45° Swivel ElbowsTube (A) x Male NPT (B)
Fitting Dimension A
(Inches)
Fitting Dimension B
(Inches)Fitting
Dimension CItemNo.
Pkg.Qty.
1/41/4 1/8-27 1511679 51/4 1/4-18 1511680 5
3/83/8 1/4-18 1511681 53/8 3/8-18 1511682 5
1/2 1/2 3/8-18 1511683 2
Fitting Dimension A
(Inches)Fitting
Dimension BItemNo.
Pkg.Qty.
1/41/8-27 1511662 51/4-18 1511663 5
3/8 1/4-18 1511664 51/2 3/8-18 1511665 2
Union ElbowsTube (A) x Tube (B)
Fitting Dimension A
(Inches)
Fitting Dimension B
(Inches)ItemNo.
Pkg.Qty.
1/4 1/4 1511666 53/8 3/8 1511667 51/2 1/2 1511668 2
Swivel Male Run TeesTube (A) x Male NPT (B) x Tube (C)
Fitting Dimension A
(Inches)Fitting
Dimension B
Fitting Dimension C
(Inches)ItemNo.
Pkg.Qty.
1/41/8-27 1/4 1511675 51/4-18 1/4 1511676 5
3/8 1/4-18 3/8 1511677 5
Fitting Dimension A
(Inches)Fitting
Dimension BItemNo.
Pkg.Qty.
1/41/8-27 1511645 51/4-18 1511614 53/8-18 1511646 5
3/8
1/8-27 1511647 51/4-18 1511648 53/8-18 1511615 51/2-14 1511671 5
1/21/4-18 1511672 23/8-18 1511616 21/2-14 1511673 2
5/8 1/2-14 1511674 2
90° Swivel ElbowsTube (A) x Male NPT (B)
FLEET AND TRANSPORTATION NFT5USA: 866.529.7664 | Canada: 800.563.1717 | lawsonproducts.com
Air Brake Hose and Fittings
Male ConnectorHose I.D. (A) x Male NPT (B)
Fitting Dimension A
(Inches)Fitting
Dimension BItemNo.
Pkg.Qty.
3/81/4-18 1520681 53/8-18 1520682 51/2-14 1520683 5
1/23/8-18 1520696 51/2-14 1520697 5
Fitting Dimension A
(Inches)Fitting
Dimension BItemNo.
Pkg.Qty.
3/8 3/4-20 1520691 51/2 7/8-20 1520706 5
Female ConnectorHose I.D. (A) x Air Brake Adapter Thread (B)
NOTE: Use with Air Brake Adapters.
Male Connector with Spring GuardHose I.D. (A) x Male NPT (B)
Fitting Dimension A
(Inches)Fitting
Dimension BItemNo.
Pkg.Qty.
3/81/4-18 1520678 13/8-18 1520679 11/2-14 1520680 1
1/23/8-18 1520707 11/2-14 1520708 1
Fitting Dimension A
(Inches)ItemNo.
Pkg.Qty.
3/8 1520710 101/2 1520694 10
NutHose I.D. (A)
Hose MenderHose I.D. (A) x Hose I.D. (B)
Fitting Dimension A
(Inches)
Fitting Dimension B
(Inches)ItemNo.
Pkg.Qty.
3/8 3/8 1520689 11/2 1/2 1520705 1
Male InsertHose I.D. (A) x Male NPT (B)
Fitting Dimension A
(Inches)Fitting
Dimension BItemNo.
Pkg.Qty.
3/81/4-18 1520685 103/8-18 1520686 101/2-14 1520687 10
1/23/8-18 1520698 51/2-14 1520699 5
• Black synthetic rubber tube with neoprene cover• Multi-spiral reinforcement• Supplied in 50 foot rolls and 250 foot reels• Easy to assemble, reusable hose ends• Brass material offers excellent corrosion resistance
Assembly information1. Slide nut and sleeve onto hose. Make
sure bevel edge of sleeve faces out toward fitting.
2. Push hose into fitting until it bottoms.3. Screw nut until contact is made with
body hex.
I.D.(Inches)
Working Pressure(PSI)
O.D.(Inches)
Burst Pressure(PSI)
Length(Ft.)
ItemNo.
Pkg.Qty.
3/8225 3/4 900 50 1520690 1225 3/4 900 250 1522633 1
1/2225 7/8 900 50 1520700 1225 7/8 900 250 1522634 1
• Meets SAE Specification J1402• Temperature range:
–40°F to +200°F (–40°C to +93°C)
AdapterAir Brake Adapter Thread (A) x Male NPT (B)
NOTE: Use with Female Connectors.
Fitting Dimension A
Fitting Dimension B
ItemNo.
Pkg.Qty.
3/4-201/4-18 1520692* 53/8-18 1520693 5
*Available in Canada Only
®FLEET AND TRANSPORTATIONNFT6
Air Brake Hose and Fittings
Fitting Dimension A
(Inches)ItemNo.
Pkg.Qty.
3/8 1520701 101/2 1520702 10
Spring GuardHose I.D. (A)
Fitting Dimension A
(Inches)ItemNo.
Pkg.Qty.
3/8 1520677 251/2 1520695 25
SleeveHose I.D. (A)
Install short prongs to nuts.
Fitting Dimension A
(Inches)ItemNo.
Pkg.Qty.
3/8 1520684 101/2 1520709 10
Nut for Spring GuardHose I.D. (A)
Clamping Stud Frame Nipple
2.83"
1 –14
1/4 –18
1/2 –14 1/2 –14
Item No. Qty.
1520688 5
