5310-00-470-5952, WASHER,FLAT

National Stock Number:
5310-00-470-5952

Federal Supply Class:
5310

National Item Identification Number:
004705952

Description:
WASHER,FLAT

Detail:
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.

Manufacturer Information:

BACW10BP6P

81205

THE BOEING COMPANY

Techincal Specification:

CENTER HOLE SHAPE STYLE	ROUND
CROSS-SECTIONAL SHAPE STYLE	RECTANGULAR
HARDNESS RATING	36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM
HOLE DIAMETER	0.378 INCHES MINIMUM AND 0.382 INCHES MAXIMUM
OVERALL DIAMETER	0.649 INCHES MINIMUM AND 0.669 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-S-18729 MIL SPEC 1ST MATERIAL RESPONSE AND MIL-S-18728 MIL SPEC 2ND MATERIAL RESPONSE AND MIL-S-18733 MIL SPEC 3RD MATERIAL RESPONSE OVERALL
MATERIAL	STEEL COMP 4130 OR STEEL COMP 8630 OR STEEL COMP 4135 OVERALL
PERIPHERAL SHAPE STYLE	ROUND
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS	ITEM IS FAA CERTIFIED
SPECIFICATION/STANDARD DATA	81205-BACW10BP MANUFACTURERS STANDARD
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	AMS 2416 ASSN STD 1ST TREATMENT RESPONSE AND AMS 2416 ASSN STD 2ND TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	NICKEL AND CADMIUM OVERALL
THICKNESS	0.057 INCHES MINIMUM AND 0.069 INCHES MAXIMUM

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