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CA4040-3 — PIN,ECCENTRIC

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

CA4040-3: PIN,ECCENTRIC.

The PIN,ECCENTRIC is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4140 OR STEEL COMP 4130 OVERALL, overall_length: 1.560 INCHES NOMINAL IN, special_features: ASSEMBLED WITH A BUSHING,ADJUSTABLE NUT AND LOCKING NUT, surface_treatment: CADMIUM OVERALL, first_step_diameter: 0.672 INCHES MINIMUM AND 0.702 INCHES MAXIMUM IN, width_between_flats: 0.125 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5315-01-127-3124, 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
CA4040-3
NSN: 5315-01-127-3124
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 29372 — HOWMET GLOBAL FASTENING SYSTEMS INC. DIV TRIDAIR PRODUCTS (USA)
SPECIFICATIONS
materialSTEEL COMP 4140 OR STEEL COMP 4130 OVERALL
overall_length1.560 INCHES NOMINAL IN
special_featuresASSEMBLED WITH A BUSHING,ADJUSTABLE NUT AND LOCKING NUT
surface_treatmentCADMIUM OVERALL
first_step_diameter0.672 INCHES MINIMUM AND 0.702 INCHES MAXIMUM IN
width_between_flats0.125 INCHES NOMINAL IN
internal_drive_styleSOCKET
second_step_diameter0.245 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
relief_under_head_diameter0.250 INCHES NOMINAL IN
material_document_and_classificationMIL-S-5626 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6758 MIL SPEC 2ND MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classificationQQ-P-416,TY 1 CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
offset_distance_between_geometric_center_of_head_and_centerline_of_shank/shoulder0.060 INCHES NOMINAL IN
NSN5315-01-127-3124
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: CA4040-3 · 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
KEY FEATURES
•
OFFSET DISTANCE BETWEEN GEOMETRIC CENTER OF HEAD AND CENTERLINE OF SHANK/SHOULDER: 0.060 INCHES NOMINAL IN
•
FIRST STEP DIAMETER: 0.672 INCHES MINIMUM AND 0.702 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 1 CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-5626 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6758 MIL SPEC 2ND MATERIAL RESPONSE OVERALL
•
SECOND STEP DIAMETER: 0.245 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
•
WIDTH BETWEEN FLATS: 0.125 INCHES NOMINAL IN
•
RELIEF UNDER HEAD DIAMETER: 0.250 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OFFSET DISTANCE BETWEEN GEOMETRIC CENTER OF HEAD AND CENTERLINE OF SHANK/SHOULDER0.060 INCHES NOMINAL IN
FIRST STEP DIAMETER0.672 INCHES MINIMUM AND 0.702 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 1 CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-5626 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6758 MIL SPEC 2ND MATERIAL RESPONSE OVERALL
OVERALL LENGTH1.560 INCHES NOMINAL IN
SECOND STEP DIAMETER0.245 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
WIDTH BETWEEN FLATS0.125 INCHES NOMINAL IN
RELIEF UNDER HEAD DIAMETER0.250 INCHES NOMINAL IN
SPECIAL FEATURESASSEMBLED WITH A BUSHING,ADJUSTABLE NUT AND LOCKING NUT
SURFACE TREATMENTCADMIUM 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: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is CA4040-3?
CA4040-3 is a PIN,ECCENTRIC.
What is the NSN for CA4040-3?
CA4040-3 is cataloged in the U.S. Government catalog under NSN 5315-01-127-3124. 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.