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NSN 5305-01-311-6251, 5305013116251
SCREW,CLOSE TOLERANCE

Federal Supply Classification
FSC 5305 - Screws
National Item Identification Number
NIIN 013116251
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 5305-01-311-6251

National Stock Number (NSN) 5305-01-311-6251, or NIIN 013116251, (screw,close tolerance) was assigned December 1, 1989 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.

There are no manufacturer part numbers associated to this NSN.

This part number has not been procured by the US Government in over 5 years.

This NSN is unique to one weapons system.

There has been very little demand for this national stock number. The demand for this NSN originated from less than 5 countries.

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 5305013116251 contains an unknown precious metal.

This NSN is associated to Schedule B 8109900000: zirconium and articles thereof nesoi. The Schedule B End Use is listed as finished metal shapes. NAICS classification category 331491: nonferrous metal (except copper and aluminum) rolling, drawing, and extruding.

This information was last updated on .


Technical Characteristics

COUNTERSINK ANGLE
(CRSQ) 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
FASTENER LENGTH
(AASB) 1.410 INCHES MINIMUM AND 1.440 INCHES MAXIMUM
GRIP DIAMETER
(AAUR) 0.2479 INCHES MINIMUM AND 0.2487 INCHES MAXIMUM
GRIP LENGTH
(ANEE) 0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM
HEAD DIAMETER
(AASL) 0.456 INCHES MINIMUM AND 0.508 INCHES MAXIMUM
HEAD STYLE
(AASK) FLAT COUNTERSUNK
INTERNAL DRIVE STYLE
(ABQZ) CROSS RECESS TYPE III
MATERIAL DOCUMENT AND CLASSIFICATION
(MDCL) AMS4928 FED SPEC SINGLE MATERIAL RESPONSE OR AMS4967 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIAL
(MATT) TITANIUM ALLOY OVERALL
NOMINAL THREAD DIAMETER
(AHYM) 0.250 INCHES
SPECIFICATION/STANDARD DATA
(ZZZK) 80205-NAS7304 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
THREAD CLASS
(AAJD) 3A
THREAD DIRECTION
(AAJF) RIGHT-HAND
THREAD LENGTH
(AASA) 0.425 INCHES NOMINAL
THREAD SERIES DESIGNATOR
(THSD) UNJF
THREAD QUANTITY PER INCH
(CMLP) 28

Manufacturer Part Numbers


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