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774D — COUPLER,DIRECTIONAL

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

774D: COUPLER,DIRECTIONAL.

The COUPLER,DIRECTIONAL is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, unit_type: TRANSMISSION LINE, design_type: BIDIRECTIONAL, usage_design: MAIN LINE AND SECONDARY LINE TERMINAL FITTING, overall_width: 3.000 INCHES NOMINAL IN, overall_height: 1.625 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-159-9478, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
774D
NSN: 3110-00-159-9478
NIINs: 001599478, 008199334
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 60038 — THE TIMKEN CORPORATION (USA)
SPECIFICATIONS
materialSTEEL OVERALL
unit_typeTRANSMISSION LINE
design_typeBIDIRECTIONAL
usage_designMAIN LINE AND SECONDARY LINE TERMINAL FITTING
overall_width3.000 INCHES NOMINAL IN
overall_height1.625 INCHES NOMINAL IN
overall_length9.000 INCHES NOMINAL IN
outside_diameter7.1250 INCHES NOMINAL IN
special_featuresOIL HOLE AND GROOVE
style_designatorDOUBLE CUP, NORMAL ANGLE
identifying_numberTERMINAL FITTING SERIES N; SERIES M
backface_corner_radius0.0625 INCHES NOMINAL IN
NSN3110-00-159-9478
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 774D · OEM ⚠ VERIFY BEFORE ORDERING Cup and cone sold separately — verify you are ordering BOTH parts or the correct component. Always replace cup and cone together — mismatched wear = premature failure ✓ BROKER TIP Taper angle determines axial load capacity. Steeper angle = higher axial load rating. Timken series numbers indicate dimensions — cross-reference carefully PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
STYLE DESIGNATOR: DOUBLE CUP, NORMAL ANGLE
•
OUTSIDE DIAMETER: 7.1250 INCHES NOMINAL IN
•
BACKFACE CORNER RADIUS: 0.0625 INCHES NOMINAL IN
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORDOUBLE CUP, NORMAL ANGLE
OVERALL WIDTH3.3750 INCHES NOMINAL IN
OUTSIDE DIAMETER7.1250 INCHES NOMINAL IN
BACKFACE CORNER RADIUS0.0625 INCHES NOMINAL IN
SPECIAL FEATURESOIL HOLE AND GROOVE
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
MATERIALSTEEL OVERALL
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 774D?
774D is a COUPLER,DIRECTIONAL.
What is the NSN for 774D?
774D is cataloged in the U.S. Government catalog under NSN 3110-00-159-9478. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.