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NSN 5305-00-031-0352, 5305000310352
SCREW,CLOSE TOLERANCE

Federal Supply Classification
FSC 5305 - Screws
National Item Identification Number
NIIN 000310352
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 5305-00-031-0352

National Stock Number (NSN) 5305-00-031-0352, or NIIN 000310352, (screw,close tolerance) was assigned October 28, 1972 in the Federal Logistics Information System (FLIS). NIIN 000310352 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. None of the associated 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, 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 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 5305000310352 does not contain precious metals.

This information was last updated on .


Technical Characteristics

HEAD DIAMETER
(AASL) 0.297 INCHES MINIMUM AND 0.302 INCHES MAXIMUM
NOMINAL THREAD DIAMETER
(AHYM) 0.190 INCHES
MINIMUM TENSILE STRENGTH
(CQBC) 180000 POUNDS PER SQUARE INCH
THREAD LENGTH
(AASA) 0.250 INCHES MINIMUM AND 0.317 INCHES MAXIMUM
GRIP LENGTH
(ANEE) 0.802 INCHES MINIMUM AND 0.822 INCHES MAXIMUM
HEAD STYLE
(AASK) FLAT COUNTERSUNK
SURFACE TREATMENT
(SFTT) CADMIUM OVERALL AND CHROMATE OVERALL
THREAD DIRECTION
(AAJF) RIGHT-HAND
THR
(AAJD) 3A
FASTENER LENGTH
(AASB) 1.072 INCHES MINIMUM AND 1.119 INCHES MAXIMUM
COUNTERSINK ANGLE
(CRSQ) 100.0 DEGREES NOMINAL
MATERIAL
(MATT) STEEL COMP 4140 OVERALL OR STEEL COMP E4340 OVERALL OR STEEL COMP 8740 OVERALL OR STEEL COMP 6150 OVERALL
GRIP DIAMETER
(AAUR) 0.1885 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM
THREAD QUANTITY PER INCH
(CMLP) 32
INTERNAL DRIVE STYLE
(ABQZ) HIGH-TORQUE
HARDNESS RATING
(CQFM) 40.0 ROCKWELL C MINIMUM OVERALL AND 43.0 ROCKWELL C MAXIMUM OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION
(STDC) QQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE FINISH
(CSYM) 32.0 MICROINCHES THREADS
THREAD SERIES DESIGNATOR
(THSD) UNF
THREAD CLASS
(AAJD) 3A
SURFACE FINISH
(CSYM) 32.0 MICROINCHES GRIP

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