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NSN 5305-00-931-7250, 5305009317250
SCREW,CLOSE TOLERANCE

Federal Supply Classification
FSC 5305 - Screws
National Item Identification Number
NIIN 009317250
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 5305-00-931-7250

National Stock Number (NSN) 5305-00-931-7250, or NIIN 009317250, (screw,close tolerance) was assigned September 23, 1966 in the Federal Logistics Information System (FLIS). NIIN 009317250 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 are 2 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, 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.

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 5305009317250 contains an unknown precious metal.

This information was last updated on .


Technical Characteristics

SURFACE FINISH
(CSYM) 32.0 MICROINCHES BEARING SURFACE OF HEAD
HEAD DIAMETER
(AASL) 0.473 INCHES MINIMUM AND 0.492 INCHES MAXIMUM
HEAD HEIGHT
(AASU) 0.162 INCHES MINIMUM AND 0.175 INCHES MAXIMUM
SURFACE TREATMENT
(SFTT) CADMIUM OVERALL AND CHROMATE OVERALL
SPECIFICATION/STANDARD DATA
(ZZZK) 80205-NAS1174 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
HEAD STYLE
(AASK) PAN
MINIMUM TENSILE STRENGTH
(CQBC) 160000 POUNDS PER SQUARE INCH
LOCKING FEATURE
(AAUM) PATCH THREADS OR PELLET THREADS OR STRIP THREADS
NOMINAL THREAD DIAMETER
(AHYM) 0.250 INCHES
THREAD QUANTITY PER INCH
(CMLP) 28
SURFACE FINISH
(CSYM) 32.0 MICROINCHES GRIP
GRIP LENGTH
(ANEE) 0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM
HARDNESS RATING
(CQFM) 36.0 ROCKWELL C MINIMUM OVERALL AND 40.0 ROCKWELL C MAXIMUM OVERALL
SURFACE FINISH
(CSYM) 32.0 MICROINCHES THREADS
THREAD DIRECTION
(AAJF) RIGHT-HAND
MATERIAL
(MATT) STEEL COMP E4340 OVERALL OR STEEL COMP 4140 OVERALL OR STEEL COMP 8740 OVERALL OR STEEL COMP 8735 OVERALL OR STEEL COMP 6150 OVERALL
THREAD SERIES DESIGNATOR
(THSD) UNJF
THREAD LENGTH
(AASA) 0.400 INCHES MINIMUM AND 0.450 INCHES MAXIMUM
FASTENER LENGTH
(AASB) 1.410 INCHES MINIMUM AND 1.440 INCHES MAXIMUM
GRIP DIAMETER
(AAUR) 0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM
THREAD CLASS
(AAJD) 3A
INTERNAL DRIVE STYLE
(ABQZ) OFFSET CRUCIFORM (TORQUE SET)
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION
(STDC) QQ-P-416,TY2,CL2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL

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