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PWA53671-21 — PIN,STRAIGHT,HEADLESS

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

PWA53671-21: PIN,STRAIGHT,HEADLESS.

The PIN,STRAIGHT,HEADLESS is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, first_end_style: SQUARE, special_features: FLAT LOCKING GROOVE ON ONE SIDE 0.812 FROM END. 0.500 LONG X 0.031 DEEP, pin_overall_length: 3.125 INCHES NOMINAL IN, pin_overall_diameter: 0.3750 INCHES NOMINAL IN, second_end_relationship_with_first_end: IDENTICAL.

This part is cataloged in the U.S. Government catalog under NSN 5315-01-358-8581, 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
PWA53671-21
NSN: 5315-01-358-8581
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
materialSTEEL OVERALL
first_end_styleSQUARE
special_featuresFLAT LOCKING GROOVE ON ONE SIDE 0.812 FROM END. 0.500 LONG X 0.031 DEEP
pin_overall_length3.125 INCHES NOMINAL IN
pin_overall_diameter0.3750 INCHES NOMINAL IN
second_end_relationship_with_first_endIDENTICAL
NSN5315-01-358-8581
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: PWA53671-21 · 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 END STYLE: SQUARE
•
PIN OVERALL DIAMETER: 0.3750 INCHES NOMINAL IN
•
PIN OVERALL LENGTH: 3.125 INCHES NOMINAL IN
•
SECOND END RELATIONSHIP WITH FIRST END: IDENTICAL
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
FIRST END STYLESQUARE
PIN OVERALL DIAMETER0.3750 INCHES NOMINAL IN
PIN OVERALL LENGTH3.125 INCHES NOMINAL IN
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
SPECIAL FEATURESFLAT LOCKING GROOVE ON ONE SIDE 0.812 FROM END. 0.500 LONG X 0.031 DEEP
MATERIALSTEEL OVERALL
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 PWA53671-21?
PWA53671-21 is a PIN,STRAIGHT,HEADLESS.
What is the NSN for PWA53671-21?
PWA53671-21 is cataloged in the U.S. Government catalog under NSN 5315-01-358-8581. 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.