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STANDARD AND SPECIAL FASTENER & BEARING
PRODUCTS SINCE 1963
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6363 GROSS POINT ROAD
NILES, IL. 60714 USA PHONE: 847-647-9555
FAX: 847-647-6712
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Contact Us |
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Home
Linkage Products
Spherical Rod Ends
Metric Rod Ends
Ball Joints
HVAC Damper
Control Swivels
Control Rods
Spherical Bearings
Threaded
Ball Studs
Wheel Fasteners
Heavy Duty Wheel Bolts & Studs
Medium & Heavy Duty Wheel Bolts
& Studs
Wheel Nuts
Slotted Bearing & Pinion Hex
Nuts
Lubrication Fittings
Heavy
Duty Double Ended
Rim Studs and Nuts
Fasteners for Brake Drum
Assemblies
Locking Hex Head Six Slot Place Bolts Grade 8
GM Type AA Metric Hex Head SEMS Caps Screws Class 8.8"
Two Piece Wheel Nuts
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LUBRICATION
FITTING THREAD SYMBOLS |
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Symbols |
Definitions |
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PTF |
Dry seal American Standard Taper Pipe Thread, where full thread length
has been shortened by one thread on small end. |
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PTF-SS |
Same as PTF except on full thread has been shortened from large end of
thread. |
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PSTDT |
1/8" Pipe Special Taper Drive Thread - Thread forming forms thread in
mating part during installation - when removed can be replaced by
standard 1/8" PTF series fitting. |
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TT-SEA-LT |
1/4" Taper Thread (SEA-LT) - Thread has a 3/4" taper per foot and a
pitch diameter of .2257/.2224 at small end. The mating tapped hole is
1/4"-28 UNF-3B straight thread. Tap drill must not exceed .215" diameter. |
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MILITARY CROSS
REFERENCES |
AETNA/LINCOLN
PART NUMBER |
National Stock
Number (NSN) |
Military Standard
Number |
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5010 |
4730-00-050-4203 |
MS15001-1 |
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5014 |
4730-00-172-0001 |
MS15001-2 |
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5410 |
4730-00-050-4207 |
MS15001-4 |
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5000 |
4730-00-050-4208 |
MS15003-1 |
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5003 |
4730-00-172-0022 |
MS15003-2 |
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5200 |
4730-00-172-0028 |
MS15003-4 |
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5300 |
4730-00-172-0031 |
MS15003-5 |
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5400 |
4730-00-172-0034 |
MS15003-6 |
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DETERMINATION OF PIPE THREAD SIZES
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Nominal Pipe
Thread Size |
Threads
Per Inch |
Major Dia.
B or C |
Nominal
Engagement
for
Tight Joint A |
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1/8" |
27 |
.405" |
1/4" |
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1/4" |
18 |
.540" |
3/8" |
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3/8" |
18 |
.675" |
3/8" |
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1/2" |
14 |
.840" |
1/2" |
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3/4" |
14 |
1.050" |
9/16" |
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1" |
11-1/2 |
1.315" |
11/16" |
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DRILL SIZE SELECTION
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Fitting Thread
Size |
Tap Drill Selection
For
Standard
Thread Fittings |
Drill Size Selection
for
Spin Drive
Fittings |
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1/4"-28 |
#3 (for soft metal
use #5) |
"A" - .234" Dia. |
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5/16"-32 |
9/32" (for soft metal
use
"J") |
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1/8" Pipe |
11/32" (for soft metal
use
"R") |
3/8 - .375" Dia.* |
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1/4" Pipe |
7/16" |
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DEPTH OF ENGAGEMENT |
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When selecting a lubrication fitting (straight, angle, standard thread,
spin drive or straight drive) be sure to measure engagement depth "A",
taking manufacturing tolerance into consideration. Then select fitting
with thread length or drive shank length that will not penetrate bearing
material or rest against rotating member.
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TURNING RADIUS
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The turning radius is given for all angle fittings shown on these pages.
Take this into consideration during initial machine design, and select a
fitting with a turning radius that will permit easy production line
installation.
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DEEP SET FITTINGS |
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When deep set fittings are required, make sure there is sufficient
clearance for easy disengagement of hydraulic coupler.
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ANGULARITY OF CONTACT
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Lincoln hydraulic couplers and fittings are designed to provide angle up
to 15°.Movement beyond this angle will cause coupler to disengage.
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