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755221-2 — PIN,SHOULDER,HEADLESS

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

755221-2: PIN,SHOULDER,HEADLESS.

The PIN,SHOULDER,HEADLESS is a the manufacturer industrial component. Key specifications include material: STEEL COMP 410 OVERALL, shank_length: 0.500 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN, thread_class: 3A A, thread_length: 0.640 INCHES MINIMUM AND 0.650 INCHES MAXIMUM IN, overall_length: 0.925 INCHES MINIMUM AND 0.945 INCHES MAXIMUM IN, shank_diameter: 0.190 INCHES MINIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5315-01-133-4589, 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
755221-2
NSN: 5315-01-133-4589
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 73030 — HAMILTON SUNDSTRAND CORPORATION DBA COLLINS AEROSPACE (USA)
SPECIFICATIONS
materialSTEEL COMP 410 OVERALL
shank_length0.500 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
thread_class3A A
thread_length0.640 INCHES MINIMUM AND 0.650 INCHES MAXIMUM IN
overall_length0.925 INCHES MINIMUM AND 0.945 INCHES MAXIMUM IN
shank_diameter0.190 INCHES MINIMUM IN
surface_finish32.0 MICROINCHES BOTH ENDS
undercut_width0.070 INCHES NOMINAL IN
first_end_styleSQUARE
hardness_rating30.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
second_end_styleCHAMFERED AND COUNTERSUNK
style_designatorUNDERCUT
NSN5315-01-133-4589
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 755221-2 · 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: 0.190 INCHES MINIMUM IN
•
SECOND SHANK DIAMETER: 0.198 INCHES MINIMUM AND 0.202 INCHES MAXIMUM IN
•
SURFACE FINISH: 32.0 MICROINCHES BOTH ENDS
•
UNDERCUT WIDTH: 0.070 INCHES NOMINAL IN
•
UNDERCUT DIAMETER: 0.130 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN
•
SECOND END COUNTERSINK DIAMETER: 0.120 INCHES NOMINAL IN
•
FIRST END LOCATION: SQUARE END
•
SECOND END TAPER ANGLE: 45.0 DEGREES NOMINAL
TECHNICAL CHARACTERISTICS
SHANK DIAMETER0.190 INCHES MINIMUM IN
SECOND SHANK DIAMETER0.198 INCHES MINIMUM AND 0.202 INCHES MAXIMUM IN
SURFACE FINISH32.0 MICROINCHES BOTH ENDS
UNDERCUT WIDTH0.070 INCHES NOMINAL IN
UNDERCUT DIAMETER0.130 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN
SECOND END COUNTERSINK DIAMETER0.120 INCHES NOMINAL IN
FIRST END LOCATIONSQUARE END
SECOND END TAPER ANGLE45.0 DEGREES NOMINAL
HOLE ARRANGEMENT STYLEONE END DRILLED
THREAD LENGTH0.640 INCHES MINIMUM AND 0.650 INCHES MAXIMUM 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: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 755221-2?
755221-2 is a PIN,SHOULDER,HEADLESS.
What is the NSN for 755221-2?
755221-2 is cataloged in the U.S. Government catalog under NSN 5315-01-133-4589. This indicates validated use in U.S. government and defense supply chains.
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