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NSN 5305-00-404-6437, 5305004046437
SCREW,CLOSE TOLERANCE

Federal Supply Classification
FSC 5305 - Screws
National Item Identification Number
NIIN 004046437
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 5305-00-404-6437

National Stock Number (NSN) 5305-00-404-6437, or NIIN 004046437, (screw,close tolerance) was assigned January 20, 1972 in the Federal Logistics Information System (FLIS). NIIN 004046437 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 is only one manufacturer part number associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by one supplier. Today, one supplier is listed as an Active supplier for this NSN. Of the active suppliers, only one supplier is 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 5305004046437 contains an unknown precious metal.

This information was last updated on .


Technical Characteristics

THREAD SERIES DESIGNATOR
(THSD) UNF
THREAD CLASS
(AAJD) 3A
GRIP LENGTH
(ANEE) 0.340 INCHES MINIMUM AND 0.360 INCHES MAXIMUM
FASTENER LENGTH
(AASB) 0.676 INCHES MINIMUM AND 0.686 INCHES MAXIMUM
HEAD STYLE
(AASK) FLAT COUNTERSUNK
SURFACE TREATMENT
(SFTT) PASSIVATE OVERALL
COUNTERSINK ANGLE
(CRSQ) 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
SURFACE FINISH
(CSYM) 32.0 MICROINCHES THREADS
MATERIAL DOCUMENT AND CLASSIFICATION
(MDCL) FMS0131 FSCM 81755 MFR REF SINGLE MATERIAL RESPONSE OVERALL
HEAD DIAMETER
(AASL) 0.500 INCHES NOMINAL
GRIP DIAMETER
(AAUR) 0.1880 INCHES MINIMUM AND 0.1890 INCHES MAXIMUM
MATERIAL
(MATT) STEEL COMP 630 OVERALL
INTERNAL DRIVE STYLE
(ABQZ) SLOT
SURFACE FINISH
(CSYM) 32.0 MICROINCHES GRIP
THREAD QUANTITY PER INCH
(CMLP) 32
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION
(STDC) MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD DIRECTION
(AAJF) RIGHT-HAND
THREAD LENGTH
(AASA) 0.264 INCHES MINIMUM AND 0.336 INCHES MAXIMUM
NOMINAL THREAD DIAMETER
(AHYM) 0.190 INCHES

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