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8668950 — PIN,GROOVED,HEADED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

8668950: PIN,GROOVED,HEADED.

The PIN,GROOVED,HEADED is a the manufacturer industrial component. Key specifications include height: 0.313 INCHES NOMINAL IN, diameter: 1.110 INCHES MINIMUM AND 1.120 INCHES MAXIMUM IN, material: STEEL COMP 4140 OR STEEL COMP 4135 OR STEEL COMP 8640 OR STEEL COMP 8635 OR STEEL COMP 8740 OVERALL, head_style: FLAT, grip_length: 4.156 INCHES NOMINAL IN, first_end_style: CHAMFERED. This part is cataloged in the U.S.

Government catalog under NSN 5315-01-031-6207, 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
8668950
NSN: 5315-01-031-6207
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
height0.313 INCHES NOMINAL IN
diameter1.110 INCHES MINIMUM AND 1.120 INCHES MAXIMUM IN
materialSTEEL COMP 4140 OR STEEL COMP 4135 OR STEEL COMP 8640 OR STEEL COMP 8635 OR STEEL COMP 8740 OVERALL
head_styleFLAT
grip_length4.156 INCHES NOMINAL IN
first_end_styleCHAMFERED
undercut_radius0.065 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN
effective_length4.000 INCHES NOMINAL IN
special_featuresONE 0.156 IN. DIA HOLE DRILLED IN THE GROOVE IN
style_designatorGROOVE
pin_head_diameter1.500 INCHES NOMINAL IN
surface_treatmentPHOSPHATE OVERALL
NSN5315-01-031-6207
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 8668950 · 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
•
FIRST END TAPER LENGTH: 0.063 INCHES NOMINAL IN
•
UNDERCUT DIAMETER: 1.000 INCHES NOMINAL IN
•
UNDER HEAD LENGTH: 4.312 INCHES NOMINAL IN
•
FIRST END STYLE: CHAMFERED
•
STYLE DESIGNATOR: GROOVE
•
PIN HEAD DIAMETER: 1.500 INCHES NOMINAL IN
•
DIAMETER: 1.110 INCHES MINIMUM AND 1.120 INCHES MAXIMUM IN
•
FIRST END TAPER ANGLE: 45.0 DEGREES NOMINAL
TECHNICAL CHARACTERISTICS
FIRST END TAPER LENGTH0.063 INCHES NOMINAL IN
UNDERCUT DIAMETER1.000 INCHES NOMINAL IN
UNDER HEAD LENGTH4.312 INCHES NOMINAL IN
FIRST END STYLECHAMFERED
STYLE DESIGNATORGROOVE
PIN HEAD DIAMETER1.500 INCHES NOMINAL IN
DIAMETER1.110 INCHES MINIMUM AND 1.120 INCHES MAXIMUM IN
FIRST END TAPER ANGLE45.0 DEGREES NOMINAL
EFFECTIVE LENGTH4.000 INCHES NOMINAL IN
HEAD STYLEFLAT
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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 8668950?
8668950 is a PIN,GROOVED,HEADED.
What is the NSN for 8668950?
8668950 is cataloged in the U.S. Government catalog under NSN 5315-01-031-6207. 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.