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NSN 5305-00-256-1382, 5305002561382
SCREW,EXTERNALLY RELIEVED BODY

Federal Supply Classification
FSC 5305 - Screws
National Item Identification Number
NIIN 002561382
Codification Country
United States
Item Name Code
INC 01852
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 5305-00-256-1382

National Stock Number (NSN) 5305-00-256-1382, or NIIN 002561382, (screw,externally relieved body) was assigned March 19, 1971 in the Federal Logistics Information System (FLIS). 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 assigned to Item Name Code (INC) 01852. [AN EXTERNALLY THREADED FASTENER WHOSE THREADED PORTION IS OF ONE NOMINAL DIAMETER, AND WHOSE UNTHREADED PORTION HAS BEEN MACHINED OR GROUND IN ONE OR MORE PLACES OR OVER ITS ENTIRE LENGTH TO A MAXIMUM DIAMETER LESS THAN THE MINIMUM PITCH DIAMETER OF THE THREAD (EXCLUDES:UNDERCUT FOR THREAD RELIEF). IT IS NO. 0 (0.060 IN.) (1.5 MM) OR LARGER, AND IS DESIGNED TO BE HELD OR DRIVEN WITH EITHER A WRENCH OR INSERTED DRIVER (EXCLUDING INTERNAL SOCKET AND MULTIPLE SPLINE TYPES) OR BOTH IN SIZES BELOW NO. 10 (0.190 IN.) (5 MM) AND LARGER SIZES MUST HAVE A HEAD DESIGNED FOR ANY TYPE INSERTED DRIVER (EXCLUDING INTERNAL SOCKET AND MULTIPLE SPLINE TYPES) BUT MAY ALSO BE DESIGNED FOR EXTERNAL WRENCHING. A LOCKING FEATURE MAY BE INCORPORATED IN THE DESIGN OF THE HEAD OR THREADS. SEE ALSO BOLT, EXTERNALLY RELIEVED BODY AND BOLT, INTERNAL WRENCHING.]. 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 5305002561382 contains an unknown precious metal.

This information was last updated on .


Technical Characteristics

FASTENER LENGTH
(AASB) 0.427 INCHES MINIMUM AND 0.447 INCHES MAXIMUM
HEAD STYLE
(AASK) PAN
THREAD CLASS
(AAJD) 2A
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION
(STDC) MIL-F-14072,NO.E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH
(AASA) 0.170 INCHES MINIMUM AND 0.190 INCHES MAXIMUM
HEAD DIAMETER
(AASL) 0.209 INCHES MINIMUM AND 0.219 INCHES MAXIMUM
HEAD HEIGHT
(AASU) 0.070 INCHES MINIMUM AND 0.080 INCHES MAXIMUM
MATERIAL
(MATT) STEEL COMP 302 OVERALL OR STEEL COMP 303 OVERALL OR STEEL COMP 304 OVERALL OR STEEL COMP 305 OVERALL OR STEEL COMP 316 OVERALL
THREAD SERIES DESIGNATOR
(THSD) UNC
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER
(AAWH) 0.357 INCHES MAXIMUM
NOMINAL THREAD DIAMETER
(AHYM) 0.112 INCHES
SURFACE TREATMENT
(SFTT) PASSIVATE OVERALL
THREAD QUANTITY PER INCH
(CMLP) 40
MATERIAL
(MATT) STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 304 OR STEEL COMP 305 OR STEEL COMP 316 OVERALL
THREAD DIRECTION
(AAJF) RIGHT-HAND
FIRST DIAMETER FROM HEAD
(AAWC) 0.078 INCHES MINIMUM AND 0.082 INCHES MAXIMUM
INTERNAL DRIVE STYLE
(ABQZ) CROSS RECESS TYPE 1
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY
(CSNG) 1
MATERIAL DOCUMENT AND CLASSIFICATION
(MDCL) 66 FED STD ALL MATERIAL RESPONSES OVERALL

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