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NSN 5310-00-181-6250, 5310001816250
NUT,SELF-LOCKING,ASSEMBLED WASHE

Federal Supply Classification
FSC 5310 - Nuts and Washers
National Item Identification Number
NIIN 001816250
Codification Country
United States
Item Name Code
INC 29736
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.
Availability: Readily Available Qualified Suppliers: Currently qualifying suppliers

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DLMS® Summary

National Stock Number 5310-00-181-6250

National Stock Number (NSN) 5310-00-181-6250, or NIIN 001816250, (nut,self-locking,assembled washe) was assigned April 13, 1970 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.

There are 4 manufacturer part numbers associated with this NSN. One of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 9 suppliers. Today, 7 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 3 suppliers are deemed design controlled or valid supply parts.

This part number has not been procured by the US Government in over a year. There has been one contract issued for this part number, with one award given. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPE5E221V1785. The total value of the awarded contracts has been US$ 50.00.

There has been very little 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 Mar 02, 2006, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) This part requires engineering source approval by the design control activity in order to maintain the quality of the part. An alternate source must qualify in accordance with the design control activity's procedures, as approved by the cognizant Government engineering activity. Valid AMCs: 1, 2, 3, 4 and 5.

This NSN is assigned to Item Name Code (INC) 29736. [A NUT ON WHICH HAS BEEN ASSEMBLED A NONREMOVABLE WASHER. AN INTEGRAL FEATURE IS INCORPORATED FOR LOCKING ON THE THREADS OF A MATING MEMBER.]. 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 5310001816250 contains an unknown precious metal.

This NSN is associated to Schedule B 7318160000: nuts of 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

COUNTERBORE DIAMETER
(AAWY) 0.630 INCHES MINIMUM NUT AND 0.640 INCHES MAXIMUM NUT
NOMINAL THREAD SIZE
(CQJX) 0.562 INCHES
NUT COUNTERBORE DEPTH
(ADFK) 0.082 INCHES MINIMUM NUT AND 0.097 INCHES MAXIMUM NUT
NUT STYLE
(ACTA) FLAT WITH TURNED UP EDGE
OVERALL HEIGHT
(ABKW) 0.510 INCHES MINIMUM AND 0.530 INCHES MAXIMUM
LOCKING FEATURE
(AAUM) PREVAILING TORQUE ALL METAL DESIGN
MATERIAL
(MATT) STEEL COMP E4340 NUT OR STEEL COMP 8740 NUT
MATERIAL
(MATT) STEEL COMP 4140 WASHER
THREAD CLASS
(AAJD) 3B
THREAD DIRECTION
(AAJF) RIGHT-HAND
THREAD QUANTITY PER INCH
(CMLP) 18
THREAD SERIES
(BZRR) UNF
WASHER OUTSIDE DIAMETER
(AAVX) 1.000 INCHES MAXIMUM
WIDTH ACROSS FLATS
(ASDB) 0.616 INCHES MINIMUM AND 0.627 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION
(STDC) QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT
(SFTT) CADMIUM OVERALL
TEMP RATING
(AZKQ) 450.0 DEG FAHRENHEIT NOMINAL

Manufacturer Part Numbers

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