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6860978 — PIN,SHOULDER,HEADLESS

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

6860978: PIN,SHOULDER,HEADLESS.

The PIN,SHOULDER,HEADLESS is a the manufacturer industrial component. Key specifications include material: STEEL COMP 347 OVERALL, shank_length: 0.385 INCHES MINIMUM AND 0.405 INCHES MAXIMUM IN, overall_length: 1.290 INCHES MINIMUM AND 1.300 INCHES MAXIMUM IN, shank_diameter: 0.1885 INCHES MINIMUM AND 0.1890 INCHES MAXIMUM IN, undercut_width: 0.035 INCHES MINIMUM AND 0.055 INCHES MAXIMUM IN, first_end_style: CHAMFERED. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-104-7966, 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
6860978
NSN: 5315-00-104-7966
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 73342 — ALLISON TRANSMISSION INC DBA ALLISON TRANSMISSION, INC (USA)
SPECIFICATIONS
materialSTEEL COMP 347 OVERALL
shank_length0.385 INCHES MINIMUM AND 0.405 INCHES MAXIMUM IN
overall_length1.290 INCHES MINIMUM AND 1.300 INCHES MAXIMUM IN
shank_diameter0.1885 INCHES MINIMUM AND 0.1890 INCHES MAXIMUM IN
undercut_width0.035 INCHES MINIMUM AND 0.055 INCHES MAXIMUM IN
first_end_styleCHAMFERED
style_designatorUNDERCUT
shoulder_diameter0.300 INCHES NOMINAL IN
undercut_diameter0.168 INCHES MINIMUM AND 0.178 INCHES MAXIMUM IN
first_end_locationBOTH ENDS
second_shank_length0.765 INCHES MINIMUM AND 0.785 INCHES MAXIMUM IN
first_end_taper_angle45.0 DEGREES NOMINAL
NSN5315-00-104-7966
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 6860978 · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
SHANK DIAMETER: 0.1885 INCHES MINIMUM AND 0.1890 INCHES MAXIMUM IN
•
SECOND SHANK DIAMETER: 0.1885 INCHES MINIMUM AND 0.1890 INCHES MAXIMUM IN
•
UNDERCUT WIDTH: 0.035 INCHES MINIMUM AND 0.055 INCHES MAXIMUM IN
•
FIRST END TAPER LENGTH: 0.015 INCHES MINIMUM AND 0.030 INCHES MAXIMUM IN
•
UNDERCUT DIAMETER: 0.168 INCHES MINIMUM AND 0.178 INCHES MAXIMUM IN
•
FIRST END LOCATION: BOTH ENDS
•
FIRST END STYLE: CHAMFERED
•
SHANK LENGTH: 0.385 INCHES MINIMUM AND 0.405 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
SHANK DIAMETER0.1885 INCHES MINIMUM AND 0.1890 INCHES MAXIMUM IN
SECOND SHANK DIAMETER0.1885 INCHES MINIMUM AND 0.1890 INCHES MAXIMUM IN
UNDERCUT WIDTH0.035 INCHES MINIMUM AND 0.055 INCHES MAXIMUM IN
FIRST END TAPER LENGTH0.015 INCHES MINIMUM AND 0.030 INCHES MAXIMUM IN
UNDERCUT DIAMETER0.168 INCHES MINIMUM AND 0.178 INCHES MAXIMUM IN
FIRST END LOCATIONBOTH ENDS
FIRST END STYLECHAMFERED
SHANK LENGTH0.385 INCHES MINIMUM AND 0.405 INCHES MAXIMUM IN
STYLE DESIGNATORUNDERCUT
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5646 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
OTHER ITEMS IN FSC 5315 — Nails, Machine Keys, and Pins
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5315-00-000-1037 5315-00-000-1067 5315-00-000-1245 5315-00-000-1372 5315-00-000-1412 5315-00-001-1571 5315-00-001-1572 5315-00-001-1602
SUBSTITUTES & CROSS-REFERENCES 1
EU80114Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 6860978?
6860978 is a PIN,SHOULDER,HEADLESS.
What parts can replace 6860978?
There is 1 known substitute for 6860978: EU80114. Substitute compatibility should be verified for your specific system.
What is the NSN for 6860978?
6860978 is cataloged in the U.S. Government catalog under NSN 5315-00-104-7966. 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.