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66052W7 — WASHER,CONCAVE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

66052W7: WASHER,CONCAVE.

The WASHER,CONCAVE is a the manufacturer industrial component. Key specifications include radius: 0.559 INCHES NOMINAL IN, material: STEEL OVERALL, hole_diameter: 0.611 INCHES MAXIMUM IN, recess_diameter: 0.750 INCHES NOMINAL IN, outside_diameter: 0.878 INCHES MAXIMUM IN, style_designator: CONCAVE. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-033-3717, 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
66052W7
NSN: 5310-00-033-3717
FSC: 5310 — Nuts and Washers
CAGE: 56878 — SPS TECHNOLOGIES, LLC DBA PB FASTENERS (USA)
SPECIFICATIONS
radius0.559 INCHES NOMINAL IN
materialSTEEL OVERALL
hole_diameter0.611 INCHES MAXIMUM IN
recess_diameter0.750 INCHES NOMINAL IN
outside_diameter0.878 INCHES MAXIMUM IN
style_designatorCONCAVE
surface_treatmentNICKEL AND CADMIUM OVERALL
material_thickness0.243 INCHES NOMINAL IN
material_document_and_classificationAMS 6304 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classificationAMS 2416 ASSN STD 1ST TREATMENT RESPONSE AND AMS 2416 ASSN STD 2ND TREATMENT RESPONSE OVERALL
NSN5310-00-033-3717
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 66052W7 · 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: AMS 2416 ASSN STD 1ST TREATMENT RESPONSE AND AMS 2416 ASSN STD 2ND TREATMENT RESPONSE OVERALL
•
RADIUS: 0.559 INCHES NOMINAL IN
•
STYLE DESIGNATOR: CONCAVE
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 6304 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 0.878 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.243 INCHES NOMINAL IN
•
RECESS DIAMETER: 0.750 INCHES NOMINAL IN
•
SURFACE TREATMENT: NICKEL AND CADMIUM OVERALL
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONAMS 2416 ASSN STD 1ST TREATMENT RESPONSE AND AMS 2416 ASSN STD 2ND TREATMENT RESPONSE OVERALL
RADIUS0.559 INCHES NOMINAL IN
STYLE DESIGNATORCONCAVE
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 6304 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER0.878 INCHES MAXIMUM IN
MATERIAL THICKNESS0.243 INCHES NOMINAL IN
RECESS DIAMETER0.750 INCHES NOMINAL IN
SURFACE TREATMENTNICKEL AND CADMIUM OVERALL
MATERIALSTEEL OVERALL
HOLE DIAMETER0.611 INCHES MAXIMUM IN
OTHER ITEMS IN FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540
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 66052W7?
66052W7 is a WASHER,CONCAVE.
What is the NSN for 66052W7?
66052W7 is cataloged in the U.S. Government catalog under NSN 5310-00-033-3717. This indicates validated use in U.S. government and defense supply chains.
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