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NSN 5310-01-284-2987, 5310012842987
WASHER,CONCAVE

Federal Supply Classification
FSC 5310 - Nuts and Washers
National Item Identification Number
NIIN 012842987
Codification Country
United States
Item Name Code
INC 15930
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 5310-01-284-2987

National Stock Number (NSN) 5310-01-284-2987, or NIIN 012842987, (washer,concave) was assigned August 22, 1988 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.

There are no manufacturer part numbers associated to this NSN. ISO Group has several sources of supply for this NSN.

This part number has not been procured by the US Government in over 5 years, with the most recent procurement date of Dec 02, 2015. There have been 3 contracts issued for this part number, with 3 awards given. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPE5E416V1918, SPE5E814V4986, SPM8E609V1437. The total value of the awarded contracts has been US$ 573.00.

There has been a small amount of demand for this national stock number. The demand for this NSN originated from less than 5 countries. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Dec 13, 2013, 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) 15930. [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.]. 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 5310012842987 does not contain precious metals.

This NSN is associated to Schedule B 7318220000: washers other than lock washers, iron or steel. 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

HARDNESS RATING
(CQFM) 40.0 ROCKWELL C MINIMUM AND 46.0 ROCKWELL C MAXIMUM
HOLE DIAMETER
(AAUB) 0.417 INCHES MINIMUM AND 0.427 INCHES MAXIMUM
OUTSIDE DIAMETER
(ABKV) 0.608 INCHES MINIMUM AND 0.618 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATION
(MDCL) MIL-S-6758 MIL SPEC 1ST MATERIAL RESPONSE OVERALL OR MIL-S-18729 MIL SPEC 1ST MATERIAL RESPONSE OVERALL OR MIL-S-6049 MIL SPEC 2ND MATERIAL RESPONSE OVERALL
MATERIAL THICKNESS
(ABPX) 0.106 INCHES MINIMUM AND 0.126 INCHES MAXIMUM
MATERIAL
(MATT) STEEL COMP 4130 OVERALL OR STEEL COMP 8740 OVERALL
RADIUS
(ABGG) 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM
SPECIAL FEATURES
(FEAT) RADIUS OFFSET 0.359 IN. MIN 0.369 IN. MAX
STYLE DESIGNATOR
(STYL) CONCAVE
SURFACE FINISH
(CSYM) 32.0 MICROINCHES COUNTERBORE FACE
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION
(STDC) QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT
(SFTT) CADMIUM OVERALL AND CHROMATE OVERALL

Manufacturer Part Numbers


Related Inventory

M45595/7-03
5310012842987
Condition NE
WASHER
Readily Available


 
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