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NSN 5305-01-730-8843, 5305017308843
SCREW,CLOSE TOLERANCE

Federal Supply Classification
FSC 5305 - Screws
National Item Identification Number
NIIN 017308843
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 5305-01-730-8843

National Stock Number (NSN) 5305-01-730-8843, or NIIN 017308843, (screw,close tolerance) was assigned June 12, 2025 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. ISO Group has several sources of supply for this NSN.

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 5305017308843 does not contain precious metals.

This information was last updated on .


Technical Characteristics

COUNTERSINK ANGLE
(CRSQ) 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
FASTENER LENGTH
(AASB) 0.746 INCHES MINIMUM AND 0.776 INCHES MAXIMUM
GRIP DIAMETER
(AAUR) 0.1885 INCHES MINIMUM AND 0.1890 INCHES MAXIMUM
GRIP LENGTH
(ANEE) 0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM
HEAD DIAMETER
(AASL) 0.338 INCHES MINIMUM AND 0.381 INCHES MAXIMUM
HEAD HEIGHT
(AASU) 0.082 INCHES MAXIMUM
HEAD STYLE
(AASK) FLAT COUNTERSUNK
INTERNAL DRIVE STYLE
(ABQZ) CRUCIFORM RIBBED
PART NAME ASSIGNED BY CONTROLLING AGENCY
(CXCY) BOLT, SHEAR, 100 DEGREE FLUSH HEAD, RIBBED CRUCIFORM RECESS, CLOSE TOLERANCE, A286 CRES, SHORT THREAD, SELF-LOCKING AND NONLOCKING, 95 KSI FSU
MATERIAL DOCUMENT AND CLASSIFICATION
(MDCL) AMS5731, AMS5732, AMS5737 OR AMS5853 AEROSPACE MATERIAL SPEC STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL
(MATT) IRON ALLOY 660 OVERALL
NOMINAL THREAD DIAMETER
(AHYM) 0.1900 INCHES
SINGLE SHEAR STRENGTH
(AAWU) 95000 POUNDS PER SQUARE INCH
SPECIFICATION/STANDARD DATA
(ZZZK) NAS7500 THRU NAS7516 NATIONAL STD/SPEC
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION
(STDC) NAS4006- NO CLASS NATIONAL STD/SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT
(SFTT) ALUMINUM OVERALL
THREAD DIRECTION
(AAJF) RIGHT-HAND
THREAD CLASS
(AAJD) 3A
THREAD LENGTH
(AASA) 0.323 INCHES NOMINAL
THREAD SERIES DESIGNATOR
(THSD) UNJF
THREAD QUANTITY PER INCH
(CMLP) 32

Manufacturer Part Numbers


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