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55A40D16-6 — PIN,GROOVED,HEADLESS

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

55A40D16-6: PIN,GROOVED,HEADLESS.

The PIN,GROOVED,HEADLESS is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, shank_length: 0.750 INCHES NOMINAL IN, overall_length: 1.000 INCHES NOMINAL IN, shank_diameter: 0.187 INCHES NOMINAL IN, first_end_style: RADIUS, style_designator: SHOULDER. This part is cataloged in the U.S.

Government catalog under NSN 5315-01-420-5815, 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
55A40D16-6
NSN: 5315-01-420-5815
NIINs: 014205815, 014258161
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 30003 — NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
shank_length0.750 INCHES NOMINAL IN
overall_length1.000 INCHES NOMINAL IN
shank_diameter0.187 INCHES NOMINAL IN
first_end_styleRADIUS
style_designatorSHOULDER
surface_treatmentPASSIVATE OVERALL
second_shank_length0.188 INCHES NOMINAL IN
second_end_relationship_with_first_endIDENTICAL
NSN5315-01-420-5815
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 55A40D16-6 · 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: 0.187 INCHES NOMINAL IN
•
FIRST END STYLE: RADIUS
•
SHANK LENGTH: 0.750 INCHES NOMINAL IN
•
STYLE DESIGNATOR: SHOULDER
•
SECOND END RELATIONSHIP WITH FIRST END: IDENTICAL
•
SECOND SHANK LENGTH: 0.188 INCHES NOMINAL IN
•
SURFACE TREATMENT: PASSIVATE OVERALL
TECHNICAL CHARACTERISTICS
SHANK DIAMETER0.187 INCHES NOMINAL IN
FIRST END STYLERADIUS
SHANK LENGTH0.750 INCHES NOMINAL IN
STYLE DESIGNATORSHOULDER
OVERALL LENGTH1.000 INCHES NOMINAL IN
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
SECOND SHANK LENGTH0.188 INCHES NOMINAL IN
SURFACE TREATMENTPASSIVATE OVERALL
MATERIALSTEEL CORROSION RESISTING OVERALL
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 55A40D16-6?
55A40D16-6 is a PIN,GROOVED,HEADLESS.
What is the NSN for 55A40D16-6?
55A40D16-6 is cataloged in the U.S. Government catalog under NSN 5315-01-420-5815. 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.