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NSN 5305-01-262-4722, 5305012624722
SCREW,CLOSE TOLERANCE

Federal Supply Classification
FSC 5305 - Screws
National Item Identification Number
NIIN 012624722
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 5305-01-262-4722

National Stock Number (NSN) 5305-01-262-4722, or NIIN 012624722, (screw,close tolerance) was assigned August 29, 1987 in the Federal Logistics Information System (FLIS). NIIN 012624722 was cancelled on August 29, 2018, 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 3 suppliers. Today, 2 suppliers are listed as Active suppliers 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 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 5305012624722 contains an unknown precious metal.

This information was last updated on .


Technical Characteristics

NOMINAL THREAD DIAMETER
(AHYM) 0.250 INCHES
HARDNESS RATING
(CQFM) 24.0 ROCKWELL C MINIMUM OVERALL AND 44.0 ROCKWELL C MAXIMUM OVERALL
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER
(CRZS) 0.750 INCHES NOMINAL FIRST HOLE
HEAD STYLE
(AASK) FLAT COUNTERSUNK
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION
(STDC) QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH
(AASA) 0.469 INCHES MINIMUM AND 0.490 INCHES MAXIMUM
THREAD CLASS
(AAJD) 3A
GRIP LENGTH
(ANEE) 0.422 INCHES MINIMUM AND 0.469 INCHES MAXIMUM
THREAD QUANTITY PER INCH
(CMLP) 28
THREAD DIRECTION
(AAJF) RIGHT-HAND
SURFACE TREATMENT
(SFTT) PASSIVATE OVERALL
THREAD SERIES DESIGNATOR
(THSD) UNF
COUNTERSINK ANGLE
(CRSQ) 100.0 DEGREES NOMINAL
FASTENER LENGTH
(AASB) 0.897 INCHES MINIMUM AND 0.938 INCHES MAXIMUM
INTERNAL DRIVE STYLE
(ABQZ) HIGH-TORQUE
HEAD DIAMETER
(AASL) 0.501 INCHES MINIMUM AND 0.506 INCHES MAXIMUM
MATERIAL
(MATT) IRON ALLOY 660 OVERALL
GRIP DIAMETER
(AAUR) 0.2487 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM
SHANK UNTHREADED HOLE DIAMETER
(AAWB) 0.076 INCHES NOMINAL FIRST HOLE


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