NSN 5310-01-284-0998

Part Details | FLAT WASHER

5310-01-284-0998 A washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. The hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). The thickness cannot exceed 25 percent of the largest outside dimension. When the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. The maximum tolerance is applied to dimensions and used as a determining factor. Items with separable lamination use SHIM. For items fabricated from ceramic or electrically rated materials by specification or industry standards use INSULATOR (1), WASHER. Excludes DISK, VALVE, graphite impregnated and lubricated items.

Alternate Parts: 258E555PC25, PL258E551PC35, PL-258E551PC35, 5310-01-284-0998, 01-284-0998, 5310012840998, 012840998

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53AUG 18, 198801-284-099813393 ( WASHER, FLAT )
REFERENCE DRAWINGS & PICTURES

RECTANGULAR

ROUND

ROUND

Cross Reference | NSN 5310-01-284-0998
Part Number Cage Code Manufacturer
258E555PC2504241BECHTEL MARINE PROPULSIONCORPORATION
PL-258E551PC3504241BECHTEL MARINE PROPULSIONCORPORATION
Technical Data | NSN 5310-01-284-0998
Characteristic Specifications
HOLE DIAMETER1.013 INCHES MINIMUM AND 1.031 INCHES MAXIMUM
PERIPHERAL SHAPE STYLE ROUND
OVERALL DIAMETER2.040 INCHES MINIMUM AND 2.060 INCHES MAXIMUM
CENTER HOLE SHAPE STYLE ROUND
CROSS-SECTIONAL SHAPE STYLE RECTANGULAR
THICKNESS0.240 INCHES MINIMUM AND 0.250 INCHES MAXIMUM
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
CRITICALITY CODE JUSTIFICATIONZZZY