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NSN 5310-01-274-3251, 5310012743251
NUT,PLAIN,INTERNAL WRENCHING

Federal Supply Classification
FSC 5310 - Nuts and Washers
National Item Identification Number
NIIN 012743251
Codification Country
United States
Item Name Code
INC 04893
Criticality
(S) The item is a non-aviation Critical Safety Item (CSI) whose failure will result in serious damage to equipment or serious injury or death to personnel.
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: We have 1 qualified suppliers

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DLMS® Summary

National Stock Number 5310-01-274-3251

National Stock Number (NSN) 5310-01-274-3251, or NIIN 012743251, (nut,plain,internal wrenching) was assigned March 7, 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 5 manufacturer part numbers associated with this NSN. One of those 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.

This NSN is unique to one weapons system.

Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Jul 03, 2013, 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) 04893. [A CYLINDRICAL-SHAPED NUT, THE END OPPOSITE THE BEARING SURFACE BEING DESIGNED WITH AN INTERNAL SOCKET OR SPLINES FOR USE WITH AN INSERTED WRENCH.]. The item is a non-aviation Critical Safety Item (CSI) whose failure will result in serious damage to equipment or serious injury or death to personnel. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 5310012743251 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

COUNTERSINK ANGLE
(CRSQ) 90.0 DEGREES NOMINAL NUT
CRITICALITY CODE JUSTIFICATION
(CRTL) ZZZY
INTERNAL DRIVE STYLE
(ABQZ) DOUBLE HEXAGON
NUT DIAMETER
(ACTD) 0.521 INCHES MINIMUM AND 0.526 INCHES MAXIMUM
NUT HEIGHT
(ADEA) 0.512 INCHES MINIMUM AND 0.522 INCHES MAXIMUM
NUT STYLE
(ACTA) INTERNAL WRENCHING
MATERIAL
(MATT) STEEL COMP 303 OVERALL
NOMINAL THREAD SIZE
(CQJX) 0.312 INCHES
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS
(ZZZY) REFERENCE NUMBER DIFFERENTIATING MATERIAL WILL BE IN ACCORDANCE WITH NAVAL INVENTORY CONTROL POINT ACTIVITY HX QUALITY CONTROL. MANUFACTURING AND TESTING SPECIFICATIONS AVAILABLE AT THE DLA ICP
SPECIAL FEATURES
(FEAT) ITEM MUST COMPLY WITH REQUIREMENTS OF DEFENSE SUPPLY CENTER PHILADELPHIA PRODUCTION STANDARD NO. PO0166NRP
TEST DATA DOCUMENT
(TEST) 81349-MIL-P-23199 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
THREAD CLASS
(AAJD) 2A
THREAD DIRECTION
(AAJF) RIGHT-HAND
THREAD QUANTITY PER INCH
(CMLP) 24
THREAD SERIES
(BZRR) UNF
WIDTH BETWEEN FLATS
(AATB) 0.310 INCHES NOMINAL
SPECIAL TEST FEATURES
(SPCL) SPECIAL QUALITY CONTROL TESTING

Manufacturer Part Numbers


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