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NSN 5305-01-521-1800, 5305015211800
SCREW,SHOULDER

Federal Supply Classification
FSC 5305 - Screws
National Item Identification Number
NIIN 015211800
Codification Country
United States
Item Name Code
INC 22846
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 5305-01-521-1800

National Stock Number (NSN) 5305-01-521-1800, or NIIN 015211800, (screw,shoulder) was assigned June 14, 2004 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. One of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. Today, 2 suppliers are listed as Active suppliers 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 Jan 28, 2015. 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 3 different suppliers. The last contract numbers awarded were: SPE4A515M2933, SPE4A515M2933, SPE4A513M6283, SPE4A513M6283, SPE4A513M1153. The total value of the awarded contracts has been US$ 51,568.50.

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 Aug 17, 2012, 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) 22846. [AN EXTERNALLY THREADED FASTENER WHOSE THREADED PORTION IS OF ONE NOMINAL DIAMETER, NO 0 (0.060 IN.) (1.5 MM) OR LARGER. IT HAS A ROUND UNTHREADED NECK OR SHANK ALL OR PART OF WHICH IS OF GREATER DIAMETER THAN THE THREADED PORTION. THE HEAD IS DESIGNED TO BE DRIVEN WITH EITHER A WRENCH OR AN INSERTED DRIVER OR BOTH IN SIZES BELOW NO. 10 (0.190 IN.) (5 MM) NOMINAL DIAMETER. NO. 10 (0.190 IN.) (5 MM) AND LARGER SIZES MUST BE DESIGNED FOR ANY TYPE OF INSERTED DRIVER, BUT MAY ALSO PROVIDE FOR EXTERNAL WRENCHING OF THE HEAD. A LOCKING FEATURE MAY BE INCORPORATED IN THE DESIGN OF THE HEAD OR THREADS. FOR ITEMS WHICH ARE BOTH SHOULDERED AND HAVE AN EXTERNALLY RELIEVED BODY, USE SCREW, EXTERNALLY RELIEVED BODY. FOR ITEMS WITH A NO. 10 (0.190 IN.) (5 MM) OR LARGER THREAD DIAMETER WITHOUT AN INSERTED DRIVER HEAD, USE BOLT, SHOULDER. EXCLUDES:BOLT, INTERNAL WRENCHING AND SCREW, CAP, SOCKET HEAD.]. 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 5305015211800 does not contain precious metals.

This information was last updated on .


Technical Characteristics

FASTENER LENGTH
(AASB) 0.450 INCHES NOMINAL
HEAD DIAMETER
(AASL) 0.595 INCHES MINIMUM AND 0.605 INCHES MAXIMUM
HEAD HEIGHT
(AASU) 0.085 INCHES MINIMUM AND 0.093 INCHES MAXIMUM
HEAD STYLE
(AASK) FILLISTER
INTERNAL DRIVE STYLE
(ABQZ) TORQUE
NOMINAL THREAD DIAMETER
(AHYM) 0.250 INCHES
SHOULDER SHAPE
(CWYB) ROUND FIRST SHOULDER
SHOULDER LENGTH
(AATX) 0.195 INCHES MINIMUM AND 0.205 INCHES MAXIMUM FIRST SHOULDER
THREAD LENGTH
(AASA) 0.250 INCHES NOMINAL
THREAD CLASS
(AAJD) 2A
THREAD DIRECTION
(AAJF) LEFT-HAND
THREAD SERIES DESIGNATOR
(THSD) UNF
THREAD QUANTITY PER INCH
(CMLP) 28

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