Product Details | RECESSED WASHER

5310-01-209-4104 A washer of any peripheral shape having a centrally located hole. Both bearing surfaces are parallel and flat, but one or both of the bearing surfaces must be broken by a counterbore, countersink, or similarly shaped recess. The thickness must not exceed 25 per cent of the outside diameter or the largest outside dimension. The maximum limit of the tolerance or range applied to the thickness and/or largest outside dimension must be used to determine compliance. Excludes WASHER, CONCAVE, RETAINER, PACKING, and thrust type washers. See also SPACER, SLEEVE; and SPACER, STEPPED.

Part Alternates: LS9672C18C, 5310-01-209-4104, 01-209-4104, 5310012094104, 012094104

Hardware and Abrasives | Nuts and Washers

Supply Group (FSG) NSN Assign. NIIN
53 29 MAY 1985 01-209-4104

Cross Reference | NSN 5310-01-209-4104

Part Number Cage Code Manufacturer
LS9672C18C 98897 LOCKHEED MARTIN CORPORATION DBA LOCKHEED MARTIN AERONAUTICS

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Technical Data | NSN 5310-01-209-4104

Characteristic Specifications
MATERIAL STEEL CORROSION RESISTING
MATERIAL DOCUMENT AND CLASSIFICATION AMS5525 ASSN STD SINGLE MATERIAL RESPONSE OR AMS5737 ASSN STD SINGLE MATERIAL RESPONSE
SURFACE TREATMENT PASSIVATE
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE
HARDNESS RATING NOT RATED
HOLE DIAMETER 1.135 INCHES MINIMUM AND 1.150 INCHES MAXIMUM
OUTSIDE DIAMETER 1.865 INCHES MINIMUM AND 1.885 INCHES MAXIMUM
RECESS DIAMETER 1.265 INCHES MINIMUM AND 1.285 INCHES MAXIMUM
MATERIAL THICKNESS 0.068 INCHES MINIMUM AND 0.088 INCHES MAXIMUM
RECESS ANGLE 88.0 DEGREES MINIMUM AND 92.0 DEGREES MAXIMUM
FEATURES PROVIDED MAGNETIZED

Restrictions/Controls & Freight Information | NSN 5310-01-209-4104

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