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NSN 5305-01-049-3009, 5305010493009
SCREW,CLOSE TOLERANCE

Federal Supply Classification
FSC 5305 - Screws
National Item Identification Number
NIIN 010493009
Codification Country
United States
Item Name Code
INC 29294
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 5305-01-049-3009

National Stock Number (NSN) 5305-01-049-3009, or NIIN 010493009, (screw,close tolerance) was assigned October 16, 1977 in the Federal Logistics Information System (FLIS). NIIN 010493009 was cancelled on December 15, 2017, with a cancelled status of "Item is Cancelled - Inactive." There is no known replacement specified for this stock number. 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 3 suppliers. Today, 2 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 2 suppliers are 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.

This NSN is assigned to Item Name Code (INC) 29294. [A SCREW, MACHINE OR SCREW, CAP, SOCKET HEAD WHOSE UNTHREADED PORTION IS OF SPECIFIED GRIP LENGTH, PLATED OR UNPLATED, AND IS MACHINED TO A TOLERANCE OF ONE THOUSANDTH (0.001 IN.) (0.025 MM) OR LESS OF A SPECIFIC DIAMETER FOR ITEMS (1.000 IN.) (25 MM) OR LESS IN DIAMETER. ITEMS OVER (1.000 IN.) (25 MM) IN DIAMETER SHALL HAVE A TOLERANCE OF FIFTEEN TEN THOUSANDTHS (0.0015 IN.) (0.038 MM) OR LESS. THE NOMINAL MAJOR DIAMETER OF THE THREADS SHALL BE AT LEAST ONE THOUSANDTH (0.001 IN.) (0.025 MM) BELOW THE MINIMUM SHANK DIAMETER, BUT NOT BELOW THE MINIMUM MAJOR DIAMETER FOR APPLICABLE CLASS OF FIT, AS SHOWN IN THE SCREW THREAD STANDARDS, FED STD H28 AND/OR OTHER NATIONALLY RECOGNIZED STANDARDS. THE HEAD IS DESIGNED TO BE HELD OR DRIVEN WITH AN INSERTED DRIVER. IT IS NOT DESIGNED FOR ROTATION BY THE THUMB AND FINGERS. A LOCKING FEATURE MAY BE INCORPORATED IN THE DESIGN OF THE HEAD OR THREADS.]. 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 5305010493009 contains an unknown precious metal.

This information was last updated on .


Technical Characteristics

THREAD DIRECTION
(AAJF) RIGHT-HAND
MATERIAL
(MATT) IRON ALLOY 660 OVERALL
HEAD STYLE
(AASK) FLAT COUNTERSUNK
SURFACE TREATMENT
(SFTT) PASSIVATE OVERALL
THREAD QUANTITY PER INCH
(CMLP) 24
THREAD LENGTH
(AASA) 0.429 INCHES MINIMUM AND 0.479 INCHES MAXIMUM
FASTENER LENGTH
(AASB) 0.751 INCHES MINIMUM AND 0.781 INCHES MAXIMUM
HEAD DIAMETER
(AASL) 0.574 INCHES MINIMUM AND 0.637 INCHES MAXIMUM
NOMINAL THREAD DIAMETER
(AHYM) 0.312 INCHES
THR
(AAJD) 3A
GRIP DIAMETER
(AAUR) 0.3115 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM
THREAD SERIES DESIGNATOR
(THSD) UNJF
GRIP LENGTH
(ANEE) 0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM
COUNTERSINK ANGLE
(CRSQ) 100.0 DEGREES NOMINAL
INTERNAL DRIVE STYLE
(ABQZ) CROSS RECESS TYPE 1
SURFACE FINISH
(CSYM) 32.0 MICROINCHES GRIP
THREAD CLASS
(AAJD) 3A
SURFACE FINISH
(CSYM) 32.0 MICROINCHES THREADS
SPECIFICATION/STANDARD DATA
(ZZZK) 81205-BACS12LH PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD

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