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A1259J218 — PIN,GROOVED,HEADLESS

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

A1259J218: PIN,GROOVED,HEADLESS.

The PIN,GROOVED,HEADLESS is a the manufacturer industrial component. Key specifications include diameter: 1.2460 INCHES MINIMUM AND 1.2475 INCHES MAXIMUM IN, material: STEEL OVERALL, overall_length: 2.760 INCHES NOMINAL IN, undercut_width: 0.056 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN, first_end_style: CHAMFERED, effective_length: 2.334 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-258-3551, 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
A1259J218
NSN: 5315-00-258-3551
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 78500 — MERITOR HEAVY VEHICLE SYSTEMS, LLC (USA)
SPECIFICATIONS
diameter1.2460 INCHES MINIMUM AND 1.2475 INCHES MAXIMUM IN
materialSTEEL OVERALL
overall_length2.760 INCHES NOMINAL IN
undercut_width0.056 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN
first_end_styleCHAMFERED
effective_length2.334 INCHES NOMINAL IN
special_featuresWITH ONE RING,RETAINING
style_designatorGROOVE
undercut_diameter1.172 INCHES MINIMUM AND 1.180 INCHES MAXIMUM IN
first_end_locationBOTH ENDS
first_end_taper_angle30.0 DEGREES NOMINAL
first_end_taper_length0.060 INCHES NOMINAL IN
NSN5315-00-258-3551
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: A1259J218 · 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
•
UNDERCUT WIDTH: 0.056 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN
•
FIRST END TAPER LENGTH: 0.060 INCHES NOMINAL IN
•
UNDERCUT DIAMETER: 1.172 INCHES MINIMUM AND 1.180 INCHES MAXIMUM IN
•
FIRST END LOCATION: BOTH ENDS
•
FIRST END STYLE: CHAMFERED
•
STYLE DESIGNATOR: GROOVE
•
DIAMETER: 1.2460 INCHES MINIMUM AND 1.2475 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
UNDERCUT WIDTH0.056 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN
FIRST END TAPER LENGTH0.060 INCHES NOMINAL IN
UNDERCUT DIAMETER1.172 INCHES MINIMUM AND 1.180 INCHES MAXIMUM IN
FIRST END LOCATIONBOTH ENDS
FIRST END STYLECHAMFERED
STYLE DESIGNATORGROOVE
DIAMETER1.2460 INCHES MINIMUM AND 1.2475 INCHES MAXIMUM IN
OVERALL LENGTH2.760 INCHES NOMINAL IN
FIRST END TAPER ANGLE30.0 DEGREES NOMINAL
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
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: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is A1259J218?
A1259J218 is a PIN,GROOVED,HEADLESS.
What is the NSN for A1259J218?
A1259J218 is cataloged in the U.S. Government catalog under NSN 5315-00-258-3551. 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.