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55A40D16-3 — PIN,GROOVED,HEADLESS

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

55A40D16-3: PIN,GROOVED,HEADLESS.

The PIN,GROOVED,HEADLESS is a the manufacturer industrial component. Key specifications include diameter: 0.374 INCHES NOMINAL IN, material: STEEL CORROSION RESISTING OVERALL, overall_length: 0.939 INCHES NOMINAL IN, undercut_width: 0.025 INCHES NOMINAL IN, first_end_style: RADIUS, effective_length: 0.758 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5315-01-382-7898, 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
55A40D16-3
NSN: 5315-01-382-7898
NIINs: 013827898, 014205813
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
diameter0.374 INCHES NOMINAL IN
materialSTEEL CORROSION RESISTING OVERALL
overall_length0.939 INCHES NOMINAL IN
undercut_width0.025 INCHES NOMINAL IN
first_end_styleRADIUS
effective_length0.758 INCHES NOMINAL IN
style_designatorGROOVE
surface_treatmentPASSIVATE OVERALL
second_undercut_width0.025 INCHES NOMINAL IN
second_end_relationship_with_first_endIDENTICAL
NSN5315-01-382-7898
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 55A40D16-3 · 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
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 55A40D16-3?
55A40D16-3 is a PIN,GROOVED,HEADLESS.
What is the NSN for 55A40D16-3?
55A40D16-3 is cataloged in the U.S. Government catalog under NSN 5315-01-382-7898. 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.