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NSN 5310-01-251-2920, 5310012512920
NUT,SELF-LOCKING,PLATE

Federal Supply Classification
FSC 5310 - Nuts and Washers
National Item Identification Number
NIIN 012512920
Codification Country
United States
Item Name Code
INC 05280
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 5310-01-251-2920

National Stock Number (NSN) 5310-01-251-2920, or NIIN 012512920, (nut,self-locking,plate) was assigned March 16, 1987 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.

There is only one manufacturer part number 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, with the most recent procurement date of Feb 23, 2012. There have been 5 contracts issued for this part number, with 5 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 2 different suppliers. The last contract numbers awarded were: SPM5AA12V0441, SPM5A712V0279, SPM5A812V0272, SPM5A812M0415, SPM5A810M3129. The total value of the awarded contracts has been US$ 10,436.01.

This NSN is unique to one weapons system.

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 Apr 26, 2008, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. The annual buy value of this part falls below the screening threshold of $10,000 but it has been screened for known source(s). (NOTE: This code shall not be used when screening parts entering the inventory. It shall not be assigned in preference to or supersede any other AMSC.) Valid AMCs: 1, 2, 3, 4 and 5.

This NSN is assigned to Item Name Code (INC) 05280. [A NUT WITH A FLANGED BASE OF VARIED SHAPES WHICH MAY BE PLAIN OR MOUNTED BY RIVETS, BOLTS, WELDING OR INTEGRAL PRONGS. 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 5310012512920 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

DISTANCE FROM APERTURE CENTER TO MOUNTING HOLE CENTER
(ADFW) 0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM
COUNTERBORE DIAMETER
(AAWY) 0.314 INCHES MAXIMUM NUT
FEATURES PROVIDED
(CBBL) FLOATING NUT
NOMINAL THREAD SIZE
(CQJX) 0.250 INCHES
NUT COUNTERBORE DEPTH
(ADFK) 0.250 INCHES MINIMUM NUT AND 0.265 INCHES MAXIMUM NUT
NUT LENGTH
(ACVN) 1.038 INCHES MAXIMUM
NUT MOUNTING PROVISION
(ADFP) STRAIGHT HOLES
NUT STYLE
(ACTA) PLATE
NUT HEIGHT
(ADEA) 0.447 INCHES MAXIMUM
LOCKING FEATURE
(AAUM) PREVAILING TORQUE ALL METAL DESIGN
LUBRICATION
(ABAJ) DRY FILM LUBRICANT
MATERIAL DOCUMENT AND CLASSIFICATION
(MDCL) AMS 5525 ASSN STD SINGLE MATERIAL RESPONSE OVERALL OR AMS 5735 ASSN STD SINGLE MATERIAL RESPONSE OVERALL OR AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL
(MATT) IRON ALLOY 660 OVERALL
MOUNTING HOLE ARRANGEMENT STYLE
(ADFU) 2 HOLES
MOUNTING HOLE DIAMETER
(ABTB) 0.098 INCHES MINIMUM AND 0.103 INCHES MAXIMUM
PLATE THICKNESS
(ADEB) 0.032 INCHES MAXIMUM
THREAD CLASS
(AAJD) 3B
THREAD DIRECTION
(AAJF) RIGHT-HAND
THREAD SERIES
(BZRR) UNJF
THREAD QUANTITY PER INCH
(CMLP) 28
SURFACE TREATMENT
(SFTT) PASSIVATE SHELL

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