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12933388 — PIN,SHOULDER,HEADLESS

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

12933388: PIN,SHOULDER,HEADLESS.

The PIN,SHOULDER,HEADLESS is a the manufacturer industrial component. Key specifications include shank_length: 2.620 INCHES NOMINAL IN, overall_length: 7.875 INCHES NOMINAL IN, shank_diameter: 0.488 INCHES MINIMUM AND 0.498 INCHES MAXIMUM IN, undercut_width: 2.500 INCHES NOMINAL IN, first_end_style: CHAMFERED, hardness_rating: 36.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5315-01-374-9503, 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
12933388
NSN: 5315-01-374-9503
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL COMP 4130 OR STEEL COMP 4137 OR STEEL COMP 4140 OR STEEL COMP 8630 OR STEEL COMP 8637 OR STEEL COMP 8640 OVERALL
shank_length2.620 INCHES NOMINAL IN
overall_length7.875 INCHES NOMINAL IN
shank_diameter0.488 INCHES MINIMUM AND 0.498 INCHES MAXIMUM IN
undercut_width2.500 INCHES NOMINAL IN
first_end_styleCHAMFERED
hardness_rating36.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL
second_end_styleSQUARE
special_featuresCUT OUT ON SECOND SHANK LENGTH 0.375 IN. LONG 0.340 IN. MIN. 0.360 IN. MAX. DEEP IN
style_designatorUNDERCUT
surface_treatmentNICKEL OVERALL
undercut_diameter0.455 INCHES MINIMUM AND 0.475 INCHES MAXIMUM IN
NSN5315-01-374-9503
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 12933388 · 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: 0.488 INCHES MINIMUM AND 0.498 INCHES MAXIMUM IN
•
SECOND SHANK DIAMETER: 0.360 INCHES MINIMUM AND 0.370 INCHES MAXIMUM IN
•
UNDERCUT WIDTH: 2.500 INCHES NOMINAL IN
•
FIRST END TAPER LENGTH: 0.065 INCHES NOMINAL IN
•
UNDERCUT DIAMETER: 0.455 INCHES MINIMUM AND 0.475 INCHES MAXIMUM IN
•
FIRST END LOCATION: LONG END
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-C-26074,CL 2,GR A MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
FIRST END STYLE: CHAMFERED
TECHNICAL CHARACTERISTICS
SHANK DIAMETER0.488 INCHES MINIMUM AND 0.498 INCHES MAXIMUM IN
SECOND SHANK DIAMETER0.360 INCHES MINIMUM AND 0.370 INCHES MAXIMUM IN
UNDERCUT WIDTH2.500 INCHES NOMINAL IN
FIRST END TAPER LENGTH0.065 INCHES NOMINAL IN
UNDERCUT DIAMETER0.455 INCHES MINIMUM AND 0.475 INCHES MAXIMUM IN
FIRST END LOCATIONLONG END
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-26074,CL 2,GR A MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
FIRST END STYLECHAMFERED
HARDNESS RATING36.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL
SHANK LENGTH2.620 INCHES NOMINAL IN
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 12933388?
12933388 is a PIN,SHOULDER,HEADLESS.
What is the NSN for 12933388?
12933388 is cataloged in the U.S. Government catalog under NSN 5315-01-374-9503. This indicates validated use in U.S. government and defense supply chains.
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