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55A40D16-5 — PIN,ECCENTRIC

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

55A40D16-5: PIN,ECCENTRIC.

The PIN,ECCENTRIC is a the manufacturer industrial component. Key specifications include material: STEEL COMP XM-13 OVERALL, overall_length: 1.934 INCHES MINIMUM AND 1.944 INCHES MAXIMUM IN, hardness_rating: 72.0 ROCKWELL A MINIMUM AND 74.0 ROCKWELL A MAXIMUM OVERALL, first_step_length: 1.412 INCHES MINIMUM AND 1.462 INCHES MAXIMUM IN, surface_treatment: PASSIVATE OVERALL, second_step_length: 0.241 INCHES MINIMUM AND 0.261 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5315-01-236-9364, 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
55A40D16-5
NSN: 5315-01-236-9364
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 30003 — NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialSTEEL COMP XM-13 OVERALL
overall_length1.934 INCHES MINIMUM AND 1.944 INCHES MAXIMUM IN
hardness_rating72.0 ROCKWELL A MINIMUM AND 74.0 ROCKWELL A MAXIMUM OVERALL
first_step_length1.412 INCHES MINIMUM AND 1.462 INCHES MAXIMUM IN
surface_treatmentPASSIVATE OVERALL
second_step_length0.241 INCHES MINIMUM AND 0.261 INCHES MAXIMUM IN
first_step_diameter0.4975 INCHES MINIMUM AND 0.4990 INCHES MAXIMUM IN
internal_drive_styleSLOT
second_step_diameter0.374 INCHES MINIMUM AND 0.376 INCHES MAXIMUM IN
material_document_and_classificationAMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classificationASTM A380 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
NSN5315-01-236-9364
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 55A40D16-5 · 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: 0.4975 INCHES MINIMUM AND 0.4990 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: ASTM A380 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
•
HARDNESS RATING: 72.0 ROCKWELL A MINIMUM AND 74.0 ROCKWELL A MAXIMUM OVERALL
•
SECOND STEP LENGTH: 0.241 INCHES MINIMUM AND 0.261 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
SECOND STEP DIAMETER: 0.374 INCHES MINIMUM AND 0.376 INCHES MAXIMUM IN
•
FIRST STEP LENGTH: 1.412 INCHES MINIMUM AND 1.462 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
FIRST STEP DIAMETER0.4975 INCHES MINIMUM AND 0.4990 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONASTM A380 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING72.0 ROCKWELL A MINIMUM AND 74.0 ROCKWELL A MAXIMUM OVERALL
SECOND STEP LENGTH0.241 INCHES MINIMUM AND 0.261 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
OVERALL LENGTH1.934 INCHES MINIMUM AND 1.944 INCHES MAXIMUM IN
SECOND STEP DIAMETER0.374 INCHES MINIMUM AND 0.376 INCHES MAXIMUM IN
FIRST STEP LENGTH1.412 INCHES MINIMUM AND 1.462 INCHES MAXIMUM IN
SURFACE TREATMENTPASSIVATE OVERALL
INTERNAL DRIVE STYLESLOT
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 55A40D16-5?
55A40D16-5 is a PIN,ECCENTRIC.
What is the NSN for 55A40D16-5?
55A40D16-5 is cataloged in the U.S. Government catalog under NSN 5315-01-236-9364. 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.