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NSN 5310-01-174-9098, 5310011749098
NUT,SELF-LOCKING,EXTENDED WASHER

Federal Supply Classification
FSC 5310 - Nuts and Washers
National Item Identification Number
NIIN 011749098
Codification Country
United States
Item Name Code
INC 29729
Criticality
(F) This item is a Flight Safety Critical Aircraft Part (FSCAP).
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 5310-01-174-9098

National Stock Number (NSN) 5310-01-174-9098, or NIIN 011749098, (nut,self-locking,extended washer) was assigned March 23, 1984 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.

There are 18 manufacturer part numbers associated with this NSN. 10 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 14 suppliers. Today, 13 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 7 suppliers are deemed design controlled or valid supply parts. 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 May 13, 2019. There have been 13 contracts issued for this part number, with 22 awards given. There is moderate competition for this NSN. The US Government has awarded contracts to 9 different suppliers. The last contract numbers awarded were: SPE4A519P4967, SPE4A519P4967, SPE4A519P4967, SPE4A519P4967, SPE4A519P4967. The total value of the awarded contracts has been US$ 1,366,946.39.

This NSN is fairly common among different weapons systems, belonging to 23 different platforms.

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 May 03, 2019, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) Acquisition of this part is restricted to source(s) specified on "Source Control", "Altered Item" or "Selected Item" drawings/documents. Valid AMCs: 1, 2, 3, 4 and 5.

This NSN is assigned to Item Name Code (INC) 29729. [A NUT HAVING 12 DRIVE POINTS, 24 SIDES, AND AN INTEGRAL WASHER WHICH EXTENDS BEYOND THE POINTS OR PERIPHERY. AN INTEGRAL FEATURE IS INCORPORATED FOR LOCKING ON THE THREADS OF A MATING MEMBER.]. This item is a Flight Safety Critical Aircraft Part (FSCAP). There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 5310011749098 does not contain precious metals.

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

THREAD PITCH DIAMETERS
(AAJE) +0.2268/+0.2300 INCHES
LOCKING FEATURE
(AAUM) PREVAILING TORQUE ALL METAL DESIGN
OVERALL HEIGHT
(ABKW) 0.375 INCHES NOMINAL
MATERIAL
(MATT) STEEL CORROSION RESISTING OVERALL
NOMINAL THREAD SIZE
(CQJX) 0.250 INCHES
NUT STYLE
(ACTA) DOUBLE HEXAGON
SPECIAL FEATURES
(FEAT) TWO DRIVE POINTS,AT 180 DEGREE ANGLE,HAVE BEEN OMITTED
WASHER OUTSIDE DIAMETER
(AAVX) 0.430 INCHES NOMINAL
WASHER THICKNESS
(ADEM) 0.050 INCHES NOMINAL
WIDTH ACROSS FLATS
(ASDB) 0.3125 INCHES NOMINAL
THREAD CLASS
(AAJD) 3B
THREAD DIRECTION
(AAJF) RIGHT-HAND
THREAD QUANTITY PER INCH
(CMLP) 28
THREAD PITCH DIAMETERS
(AAJE) +0.2268 TO 0.2300 INCHES
THREAD SERIES
(BZRR) UNJF

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