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NSN 5305-00-148-1274, 5305001481274
SCREW,CLOSE TOLERANCE

Federal Supply Classification
FSC 5305 - Screws
National Item Identification Number
NIIN 001481274
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 5305-00-148-1274

National Stock Number (NSN) 5305-00-148-1274, or NIIN 001481274, (screw,close tolerance) was assigned October 6, 1971 in the Federal Logistics Information System (FLIS). NIIN 001481274 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 6 manufacturer part numbers associated with this NSN. One of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 8 suppliers. Today, 8 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 6 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 5305001481274 contains an unknown precious metal.

This information was last updated on .


Technical Characteristics

HEAD STYLE
(AASK) FLAT COUNTERSUNK
GRIP LENGTH
(ANEE) 0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM
HEAD DIAMETER
(AASL) 0.531 INCHES MINIMUM AND 0.558 INCHES MAXIMUM
THREAD LENGTH
(AASA) 0.423 INCHES MINIMUM AND 0.473 INCHES MAXIMUM
SPECIAL FEATURES
(FEAT) BEARING SURFACE OF HEAD GROOVED TO 0.394 IN. MIN 0.396 IN. MAX DIA,0.092 IN. MIN 0.097 IN. MAX LG FROM TOP OF HEAD
INTERNAL DRIVE STYLE
(ABQZ) OFFSET CRUCIFORM (TORQUE SET)
THREAD QUANTITY PER INCH
(CMLP) 24
THREAD CLASS
(AAJD) 3A
THREAD DIRECTION
(AAJF) RIGHT-HAND
NOMINAL THREAD DIAMETER
(AHYM) 0.312 INCHES
MINIMUM TENSILE STRENGTH
(CQBC) 160000 POUNDS PER SQUARE INCH
GRIP DIAMETER
(AAUR) 0.3115 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATION
(MDCL) NAS621,COMP 6AL-4V ASSN STD SINGLE MATERIAL RESPONSE OVERALL
THREAD SERIES DESIGNATOR
(THSD) UNJF
FASTENER LENGTH
(AASB) 0.995 INCHES MINIMUM AND 1.025 INCHES MAXIMUM
COUNTERSINK ANGLE
(CRSQ) 59.75 DEGREES MINIMUM AND 60.25 DEGREES MAXIMUM
SURFACE FINISH
(CSYM) 32.0 MICROINCHES GRIP
SURFACE FINISH
(CSYM) 32.0 MICROINCHES THREADS
MATERIAL
(MATT) TITANIUM ALLOY UNS R54520 OVERALL

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