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NSN 5310-01-124-0526, 5310011240526
WASHER,SHOULDERED AND RECESSED

Federal Supply Classification
FSC 5310 - Nuts and Washers
National Item Identification Number
NIIN 011240526
Codification Country
United States
Item Name Code
INC 15935
Criticality
(X) This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Hazardous Material Indicator Code
(N) There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials.
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DLMS® Summary

National Stock Number 5310-01-124-0526

National Stock Number (NSN) 5310-01-124-0526, or NIIN 011240526, (washer,shouldered and recessed) was assigned December 27, 1981 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.

There are 2 manufacturer part numbers associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by one supplier. Today, one supplier is listed as an Active supplier for this NSN. Of the active suppliers, only one supplier is deemed design controlled or valid supply parts.

This part number has not been procured by the US Government in over 5 years.

This NSN is somewhat common among different platforms, belonging to 4 different weapons systems.

Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Jun 02, 2005, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) The Government has unlimited rights to the technical data, and the data package is complete. Valid AMCs: 1 and 2.

This NSN is assigned to Item Name Code (INC) 15935. [A WASHER, ROUND IN SHAPE, HAVING A CENTRALLY LOCATED HOLE. ONE BEARING SURFACE IS FLAT, THE OTHER SURFACE IS IN THE FORM OF A RAISED SHOULDER (BOSS) HAVING A FLAT BEARING SURFACE. EITHER OR BOTH OF THE BEARING SURFACES MUST BE BROKEN BY A COUNTERBORE, COUNTERSINK, OR SIMILAR SHAPED RECESS. THE THICKNESS OF THE SHOULDER (BOSS) MUST NOT EXCEED 25 PERCENT OF THE SHOULDER (BOSS) DIAMETER. FOR ITEMS HAVING A SHOULDER (BOSS) OF GREATER THICKNESS, USE BEARING, SLEEVE; BUSHING, SLEEVE; OR SPACER, SLEEVE. EXCLUDES:INSULATOR, WASHER AND THRUST TYPE WASHERS.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 5310011240526 does not contain precious metals.

This NSN is associated to Schedule B 7616108000: cotters, cotter-pins, washers and similar articles, of aluminum. The Schedule B End Use is listed as finished metal shapes. NAICS classification category 332722: bolt, nut, screw, rivet, and washer manufacturing.

This information was last updated on .


Technical Characteristics

HOLE DIAMETER
(AAUB) 0.115 INCHES MINIMUM AND 0.120 INCHES MAXIMUM
OUTSIDE DIAMETER
(ABKV) 0.310 INCHES MINIMUM AND 0.314 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATION
(MDCL) ASTM A582,COND A ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL THICKNESS
(ABPX) 0.034 INCHES MINIMUM AND 0.038 INCHES MAXIMUM
MATERIAL
(MATT) STEEL COMP 303 OVERALL
RECESS ANGLE
(CSTM) 100.0 DEGREES NOMINAL
RECESS DIAMETER
(ABMD) 0.225 INCHES MINIMUM AND 0.235 INCHES MAXIMUM
SHOULDER HEIGHT
(ABMG) 0.020 INCHES MINIMUM AND 0.028 INCHES MAXIMUM
SHOULDER DIAMETER
(AAVH) 0.186 INCHES MINIMUM AND 0.190 INCHES MAXIMUM
SPECIAL FEATURES
(FEAT) CHAMFER BOTTOM OUTSIDE EDGE 0.010 IN. BY 40 DEG MIN 50 DEG MAX
STYLE DESIGNATOR
(STYL) SHOULDERED AND RECESSED
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION
(STDC) QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT
(SFTT) PASSIVATE OVERALL

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