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Technical Data Sheet
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53051 — CAP,HYD END,SPECIAL

✓ Government record, cited
Bestway · NUT WASHER
PRODUCT OVERVIEW

53051: CAP,HYD END,SPECIAL.

INTERACTIVE PLAY POOL - Safety valves - Sturdy pre-tested vinyl - Includes 6 game balls to roll up and down the inflatable ball ramp and 3 inflatable rings to play ring toss! - Removable slide with tie ropes and built-in grommets - Water sprayer attaches to garden hose - Fun for children - Repair patch included - Designed water capacity: 250 L (66 gal.) - Releases pool water with the easy-to-use drain valve! - Content: One play pool, six game balls, three rings, repair patch This part is cataloged in the U.S.

Government catalog under NSN 5310-00-770-3978, indicating validated use in U.S. government and defense logistics supply chains.

WHERE IT FITS
53051
NSN: 5310-00-770-3978
NIINs: 007703978, 010545509, 011867485, 013744364
FSC: 5310 — Nuts and Washers
CAGE: 34623 — AM GENERAL LLC (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 7075 OVERALL
mounting_stylePLAIN W/MOUNTING HOLE
receptacle_width0.625 INCHES NOMINAL IN
receptacle_height1.572 INCHES NOMINAL IN
surface_treatmentANODIZE OVERALL
turnlock_mounting_hole_diameter0.250 INCHES MINIMUM AND 0.253 INCHES MAXIMUM IN
material_document_and_classificationQQ-A-282 7075-T6 FED SPEC 1ST MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classificationMIL-A-8625A MIL SPEC ALL TREATMENT RESPONSES OVERALL A
NSN5310-00-770-3978
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 53051 · Bestway ⚠ 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
•
OVERALL DIAMETER: 0.562 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
SURFACE TREATMENT: CADMIUM OR ZINC OVERALL
•
PERIPHERAL SHAPE STYLE: ROUND
•
MATERIAL: STEEL OVERALL
•
CENTER HOLE SHAPE STYLE: ROUND
•
HOLE DIAMETER: 0.328 INCHES NOMINAL IN
•
THICKNESS: 0.031 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER0.562 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
SURFACE TREATMENTCADMIUM OR ZINC OVERALL
PERIPHERAL SHAPE STYLEROUND
MATERIALSTEEL OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.328 INCHES NOMINAL IN
THICKNESS0.031 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 1
502203Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 53051?
53051 is a CAP,HYD END,SPECIAL manufactured by Bestway.
What parts can replace 53051?
There is 1 known substitute for 53051: 502203. Substitute compatibility should be verified for your specific system.
What is the NSN for 53051?
53051 is cataloged in the U.S. Government catalog under NSN 5310-00-770-3978. This indicates validated use in U.S. government and defense supply chains.
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