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6520-10-605-6102 — RETAINER,NUT AND BOLT

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

6520-10-605-6102: RETAINER,NUT AND BOLT.

The RETAINER,NUT AND BOLT is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4130, overall_length: 4.100 INCHES NOMINAL IN, surface_treatment: CADMIUM AND CHROMATE, mounting_hole_diameter: 0.189 INCHES MINIMUM AND 0.199 INCHES MAXIMUM IN, material_document_and_classification: MIL-S-18729, COMP 4130 MIL SPEC SINGLE MATERIAL RESPONSE, surface_treatment_document_and_classification: QQ-P-416, TYPE 2, CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-157-4170, 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
6520-10-605-6102
NSN: 5340-01-157-4170
FSC: 5340 — Hardware, Commercial
CAGE: 78286 — SIKORSKY AIRCRAFT CORPORATION DBA SIKORSKY AIRCRAFT CORP (USA)
SPECIFICATIONS
materialSTEEL COMP 4130
overall_length4.100 INCHES NOMINAL IN
surface_treatmentCADMIUM AND CHROMATE
mounting_hole_diameter0.189 INCHES MINIMUM AND 0.199 INCHES MAXIMUM IN
material_document_and_classificationMIL-S-18729, COMP 4130 MIL SPEC SINGLE MATERIAL RESPONSE
surface_treatment_document_and_classificationQQ-P-416, TYPE 2, CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE
center_to_center_distance_between_cup_and_mounting_hole2.800 INCHES NOMINAL IN
NSN5340-01-157-4170
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 6520-10-605-6102 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416, TYPE 2, CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-18729, COMP 4130 MIL SPEC SINGLE MATERIAL RESPONSE
•
MOUNTING HOLE DIAMETER: 0.189 INCHES MINIMUM AND 0.199 INCHES MAXIMUM IN
•
CENTER TO CENTER DISTANCE BETWEEN CUP AND MOUNTING HOLE: 2.800 INCHES NOMINAL IN
•
SURFACE TREATMENT: CADMIUM AND CHROMATE
•
MATERIAL: STEEL COMP 4130
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416, TYPE 2, CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-18729, COMP 4130 MIL SPEC SINGLE MATERIAL RESPONSE
MOUNTING HOLE DIAMETER0.189 INCHES MINIMUM AND 0.199 INCHES MAXIMUM IN
OVERALL LENGTH4.100 INCHES NOMINAL IN
CENTER TO CENTER DISTANCE BETWEEN CUP AND MOUNTING HOLE2.800 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM AND CHROMATE
MATERIALSTEEL COMP 4130
OTHER ITEMS IN FSC 5340 — Hardware, Commercial
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5340-00-000-0068 5340-00-000-0132 5340-00-000-8150 5340-00-001-1251 5340-00-001-1264 5340-00-001-1265 5340-00-001-1266 5340-00-001-1275
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 6520-10-605-6102?
6520-10-605-6102 is a RETAINER,NUT AND BOLT.
What is the NSN for 6520-10-605-6102?
6520-10-605-6102 is cataloged in the U.S. Government catalog under NSN 5340-01-157-4170. 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.