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5189109-003 — PIN,ECCENTRIC

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

5189109-003: PIN,ECCENTRIC.

The PIN,ECCENTRIC is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4140 AND STEEL COMP 4130 OVERALL, overall_length: 1.297 INCHES MINIMUM AND 1.327 INCHES MAXIMUM IN, style_designator: ECCENTRIC, surface_treatment: CADMIUM AND CHROMATE OVERALL, third_step_length: 0.670 INCHES NOMINAL IN, first_step_diameter: 0.560 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5315-01-321-4161, 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
5189109-003
NSN: 5315-01-321-4161
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialSTEEL COMP 4140 AND STEEL COMP 4130 OVERALL
overall_length1.297 INCHES MINIMUM AND 1.327 INCHES MAXIMUM IN
style_designatorECCENTRIC
surface_treatmentCADMIUM AND CHROMATE OVERALL
third_step_length0.670 INCHES NOMINAL IN
first_step_diameter0.560 INCHES NOMINAL IN
third_step_diameter0.245 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
width_between_flats0.380 INCHES NOMINAL IN
internal_drive_styleSOCKET
material_document_and_classificationMIL-S-5626 MIL SPEC 1ST MATERIAL RESPONSE AND MIL-S-6758 MIL SPEC 2ND MATERIAL RESPONSE OVERALL
numeric_designation_of_step_eccentric_to_head2
surface_treatment_document_and_classificationQQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5315-01-321-4161
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 5189109-003 · 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: 0.560 INCHES NOMINAL IN
•
NUMERIC DESIGNATION OF STEP ECCENTRIC TO HEAD: 2
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THIRD STEP DIAMETER: 0.245 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: ECCENTRIC
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-5626 MIL SPEC 1ST MATERIAL RESPONSE AND MIL-S-6758 MIL SPEC 2ND MATERIAL RESPONSE OVERALL
•
WIDTH BETWEEN FLATS: 0.380 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
FIRST STEP DIAMETER0.560 INCHES NOMINAL IN
NUMERIC DESIGNATION OF STEP ECCENTRIC TO HEAD2
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THIRD STEP DIAMETER0.245 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
STYLE DESIGNATORECCENTRIC
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-5626 MIL SPEC 1ST MATERIAL RESPONSE AND MIL-S-6758 MIL SPEC 2ND MATERIAL RESPONSE OVERALL
OVERALL LENGTH1.297 INCHES MINIMUM AND 1.327 INCHES MAXIMUM IN
WIDTH BETWEEN FLATS0.380 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
INTERNAL DRIVE STYLESOCKET
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 2
CA40043-4Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
FT 1662Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 5189109-003?
5189109-003 is a PIN,ECCENTRIC.
What parts can replace 5189109-003?
There are 2 known substitutes for 5189109-003: CA40043-4, FT 1662. Substitute compatibility should be verified for your specific system.
What is the NSN for 5189109-003?
5189109-003 is cataloged in the U.S. Government catalog under NSN 5315-01-321-4161. 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.