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571501-1 — PIN,SHOULDER,HEADLESS

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

571501-1: PIN,SHOULDER,HEADLESS.

The PIN,SHOULDER,HEADLESS is a the manufacturer industrial component. Key specifications include material: STEEL COMP 630 OVERALL, shank_length: 0.178 INCHES NOMINAL IN, thread_class: 2A A, thread_length: 0.178 INCHES NOMINAL IN, overall_length: 1.300 INCHES NOMINAL IN, shank_diameter: 0.190 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5315-01-112-4520, 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
571501-1
NSN: 5315-01-112-4520
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 3B150 — RAYTHEON COMPANY DBA RAYTHEON CO (USA)
SPECIFICATIONS
materialSTEEL COMP 630 OVERALL
shank_length0.178 INCHES NOMINAL IN
thread_class2A A
thread_length0.178 INCHES NOMINAL IN
overall_length1.300 INCHES NOMINAL IN
shank_diameter0.190 INCHES NOMINAL IN
undercut_width0.062 INCHES NOMINAL IN
first_end_styleSQUARE
second_end_styleCHAMFERED
style_designatorUNDERCUT
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
NSN5315-01-112-4520
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 571501-1 · 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 NOMINAL IN
•
SECOND SHANK DIAMETER: 0.2618 INCHES MINIMUM AND 0.2620 INCHES MAXIMUM IN
•
UNDERCUT WIDTH: 0.062 INCHES NOMINAL IN
•
UNDERCUT DIAMETER: 0.146 INCHES MINIMUM AND 0.156 INCHES MAXIMUM IN
•
FIRST END LOCATION: THREADED END
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD LENGTH: 0.178 INCHES NOMINAL IN
•
FIRST END STYLE: SQUARE
TECHNICAL CHARACTERISTICS
SHANK DIAMETER0.190 INCHES NOMINAL IN
SECOND SHANK DIAMETER0.2618 INCHES MINIMUM AND 0.2620 INCHES MAXIMUM IN
UNDERCUT WIDTH0.062 INCHES NOMINAL IN
UNDERCUT DIAMETER0.146 INCHES MINIMUM AND 0.156 INCHES MAXIMUM IN
FIRST END LOCATIONTHREADED END
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH0.178 INCHES NOMINAL IN
FIRST END STYLESQUARE
SHANK LENGTH0.178 INCHES NOMINAL IN
STYLE DESIGNATORUNDERCUT
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: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 571501-1?
571501-1 is a PIN,SHOULDER,HEADLESS.
What is the NSN for 571501-1?
571501-1 is cataloged in the U.S. Government catalog under NSN 5315-01-112-4520. 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.