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NSN 5310-01-255-2700, 5310012552700
NUT,SELF-LOCKING,ASSEMBLED WASHE

Federal Supply Classification
FSC 5310 - Nuts and Washers
National Item Identification Number
NIIN 012552700
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 5310-01-255-2700

National Stock Number (NSN) 5310-01-255-2700, or NIIN 012552700, (nut,self-locking,assembled washe) was assigned May 17, 1987 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.

This part number has not been procured by the US Government in over 5 years, with the most recent procurement date of May 10, 2019. 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: SPE5E719P2684. The total value of the awarded contracts has been US$ 330.78.

This NSN is somewhat common among different platforms, belonging to 3 different weapons systems.

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 May 26, 2017, 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) 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 5310012552700 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

SURFACE TREATMENT
(SFTT) CADMIUM OVERALL AND CHROMATE OVERALL
MATERIAL
(MATT) STEEL COMP 8740 NUT OR STEEL COMP 4340 NUT
COUNTERBORE DIAMETER
(AAWY) 0.541 INCHES MINIMUM AND 0.551 INCHES MAXIMUM NUT
NUT COUNTERBORE DEPTH
(ADFK) 0.072 INCHES MINIMUM AND 0.087 INCHES MAXIMUM NUT
NUT STYLE
(ACTA) FLAT WITH TURNED UP EDGE
OVERALL HEIGHT
(ABKW) 0.415 INCHES MINIMUM AND 0.435 INCHES MAXIMUM
LOCKING FEATURE
(AAUM) PREVAILING TORQUE ALL METAL DESIGN
MATERIAL DOCUMENT AND CLASSIFICATION
(MDCL) AMS5085 ASSN STD SINGLE MATERIAL RESPONSE WASHER
MATERIAL DOCUMENT AND CLASSIFICATION
(MDCL) MIL-S-6049 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5000 MIL SPEC 2ND MATERIAL RESPONSE NUT
MATERIAL
(MATT) STEEL COMP 1050 WASHER
MATERIAL
(MATT) STEEL COMP 8740 OR STEEL COMP 4340 NUT
NOMINAL THREAD SIZE
(CQJX) 0.500 INCHES
WASHER OUTSIDE DIAMETER
(AAVX) 0.860 INCHES MAXIMUM
WIDTH ACROSS FLATS
(ASDB) 0.553 INCHES MINIMUM AND 0.564 INCHES MAXIMUM
SPECIFICATION/STANDARD DATA
(ZZZK) 80205-NAS1726 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION
(STDC) QQ-P-416,CL 2,TY 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT
(SFTT) CADMIUM AND CHROMATE OVERALL
TEMP RATING
(AZKQ) 450.0 DEG FAHRENHEIT MAXIMUM
THREAD CLASS
(AAJD) 3B
THREAD DIRECTION
(AAJF) RIGHT-HAND
THREAD QUANTITY PER INCH
(CMLP) 20
THREAD SERIES
(BZRR) UNJF

Manufacturer Part Numbers


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