Product Details | CONCAVE WASHER

5310-01-291-4017 A washer which is round with a centrally located hole. One bearing surface is smooth, flat, and unbroken, the other bearing surface is smooth, unbroken, and is recessed to form a curved or spherical contour. See also WASHER (1), CONVEX. Excludes WASHER (1), RECESSED and BEARING, WASHER, THRUST.

Part Alternates: K197014, K19701-4, 5310-01-291-4017, 01-291-4017, 5310012914017, 012914017

Hardware and Abrasives | Nuts and Washers

Supply Group (FSG) NSN Assign. NIIN
53 28 DEC 1988 01-291-4017

Drawings & Photos | NSN 5310-01-291-4017


Demand History | NSN 5310-01-291-4017

Part Number Request Date QTY Origin
K19701-4 2013-03-70 33

Cross Reference | NSN 5310-01-291-4017

Part Number Cage Code Manufacturer
K19701-4 15653 ALCOA GLOBAL FASTENERS, INC.

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Technical Data | NSN 5310-01-291-4017

Characteristic Specifications
MATERIAL STEEL COMP 8740 OR STEEL COMP 4037 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION MIL-S-6049 MIL SPEC 1ST MATERIAL RESPONSE AND MIL-S-8695 MIL SPEC 2ND MATERIAL RESPONSE OVERALL
SURFACE TREATMENT CADMIUM AND CHROMATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION QQ-P-416 TY2 CL2 FED SPEC 1ST TREATMENT RESPONSE OVERALL
HARDNESS RATING 38.0 ROCKWELL C MINIMUM AND 44.0 ROCKWELL C MAXIMUM
STYLE DESIGNATOR 6 CONCAVE
HOLE DIAMETER 0.358 INCHES MINIMUM AND 0.364 INCHES MAXIMUM
RADIUS 0.300 INCHES MINIMUM AND 0.305 INCHES MAXIMUM
OUTSIDE DIAMETER 0.505 INCHES MINIMUM AND 0.515 INCHES MAXIMUM
MATERIAL THICKNESS 0.113 INCHES MINIMUM AND 0.123 INCHES MAXIMUM

Restrictions/Controls & Freight Information | NSN 5310-01-291-4017

Category Code Description
Hazardous Material Indicator CodeNThere is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Demilitarization Code:ANon-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Precious Metals Indicator Code:UPrecious metal type is unknown
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Category Code Description
No Freight Information