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NSN 5305-00-521-8644, 5305005218644
SCREW,CAP,SOCKET HEAD

Federal Supply Classification
FSC 5305 - Screws
National Item Identification Number
NIIN 005218644
Codification Country
United States
Item Name Code
INC 16282
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 5305-00-521-8644

National Stock Number (NSN) 5305-00-521-8644, or NIIN 005218644, (screw,cap,socket head) was assigned January 1, 1963 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, there are no suppliers listed as an Active supplier for this NSN. Of the active suppliers, there are no suppliers that 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.

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: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. The Government physically does not have in its possession sufficient, accurate, or legible data to purchase this part from other than current source(s). (NOTE: This code is applicable only to parts under immediate buy requirements and only as long as the deficiency is under review for resolution and appropriate recoding.) Valid AMCs: 1, 2, 3, 4 and 5.

This NSN is assigned to Item Name Code (INC) 16282. [AN EXTERNALLY THREADED FASTENER WHOSE THREADED PORTION IS OF ONE NOMINAL DIAMETER. THE HEAD HAS AN INTERNAL SOCKET OR MULTIPLE SPLINE FOR USE WITH AN INSERTED DRIVER. A LOCKING FEATURE MAY BE INCORPORATED IN THE DESIGN OF THE HEAD OR THREADS. EXCLUDES:ITEMS WITH BEVEL (CONICAL) HEADS. SEE BOLT, INTERNAL WRENCHING. EXCLUDES:SCREW, SHOULDER; AND SCREW, MACHINE.]. 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 5305005218644 contains an unknown precious metal.

This NSN is associated to Schedule B 7318152000: bolts and bolts and their nuts or washers exported in the same shipment. The Schedule B End Use is listed as iron and steel products, other. NAICS classification category 332722: bolt, nut, screw, rivet, and washer manufacturing.

This information was last updated on .


Technical Characteristics

MATERIAL
(MATT) STEEL COMP 4037 OVERALL
HARDNESS RATING
(CQFM) 38.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM OVERALL
FASTENER LENGTH
(AASB) 0.365 INCHES MINIMUM AND 0.395 INCHES MAXIMUM
HEAD DIAMETER
(AASL) 0.221 INCHES MINIMUM AND 0.226 INCHES MAXIMUM
HEAD HEIGHT
(AASU) 0.134 INCHES MINIMUM AND 0.138 INCHES MAXIMUM
HEAD STYLE
(AASK) FLAT CHAMFER
INTERNAL DRIVE STYLE
(ABQZ) HEXAGON
MATERIAL
(MATT) UNABLE TO DECODE
NOMINAL THREAD DIAMETER
(AHYM) 0.138 INCHES
SURFACE TREATMENT
(SFTT) UNABLE TO DECODE
THREAD CLASS
(AAJD) 2A
THREAD LENGTH
(AASA) 0.293 INCHES MINIMUM
THREAD DIRECTION
(AAJF) RIGHT-HAND
THREAD QUANTITY PER INCH
(CMLP) 40
THREAD SERIES DESIGNATOR
(THSD) UNF
WIDTH ACROSS FLATS
(ASDB) 0.094 INCHES MINIMUM AND 0.095 INCHES MAXIMUM
SURFACE TREATMENT
(SFTT) PHOSPHATE OVERALL

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