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5166201 — PIN,SHOULDER,HEADLESS

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

5166201: PIN,SHOULDER,HEADLESS.

The PIN,SHOULDER,HEADLESS is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303SE OVERALL, thread_class: 2A A, thread_length: 0.380 INCHES NOMINAL IN, first_end_style: SQUARE, style_designator: SHOULDER, thread_direction: RIGHT-HAND. This part is cataloged in the U.S.

Government catalog under NSN 5315-01-309-7865, 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
5166201
NSN: 5315-01-309-7865
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialSTEEL COMP 303SE OVERALL
thread_class2A A
thread_length0.380 INCHES NOMINAL IN
first_end_styleSQUARE
style_designatorSHOULDER
thread_directionRIGHT-HAND
first_step_length0.250 INCHES NOMINAL IN
surface_treatmentPASSIVATE OVERALL
third_step_length0.380 INCHES NOMINAL IN
first_end_locationTHREADED END
second_step_length0.500 INCHES NOMINAL IN
first_step_diameter1.000 INCHES NOMINAL IN
NSN5315-01-309-7865
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 5166201 · 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 STEP DIAMETER: 1.000 INCHES NOMINAL IN
•
FIRST END LOCATION: THREADED END
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35,TYPE 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THIRD STEP DIAMETER: 0.375 INCHES NOMINAL IN
•
THREAD LENGTH: 0.380 INCHES NOMINAL IN
•
FIRST END STYLE: SQUARE
•
SECOND STEP LENGTH: 0.500 INCHES NOMINAL IN
•
STYLE DESIGNATOR: SHOULDER
TECHNICAL CHARACTERISTICS
FIRST STEP DIAMETER1.000 INCHES NOMINAL IN
FIRST END LOCATIONTHREADED END
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35,TYPE 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THIRD STEP DIAMETER0.375 INCHES NOMINAL IN
THREAD LENGTH0.380 INCHES NOMINAL IN
FIRST END STYLESQUARE
SECOND STEP LENGTH0.500 INCHES NOMINAL IN
STYLE DESIGNATORSHOULDER
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A581,COND A ASSN STD SINGLE MATERIAL RESPONSE OVERALL
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: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 5166201?
5166201 is a PIN,SHOULDER,HEADLESS.
What is the NSN for 5166201?
5166201 is cataloged in the U.S. Government catalog under NSN 5315-01-309-7865. This indicates validated use in U.S. government and defense supply chains.
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