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NSN 5305-00-639-7252, 5305006397252
SCREW,CLOSE TOLERANCE

Federal Supply Classification
FSC 5305 - Screws
National Item Identification Number
NIIN 006397252
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.
Availability: Readily Available Qualified Suppliers: Currently qualifying suppliers

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DLMS® Summary

National Stock Number 5305-00-639-7252

National Stock Number (NSN) 5305-00-639-7252, or NIIN 006397252, (screw,close tolerance) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. 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 a year. There have been 3 contracts issued for this part number, with 3 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 3 different suppliers. The last contract numbers awarded were: SPE4A624FAL18, SPE4A624FAL18, SPM5E119FA326, SPE5E319V8779. The total value of the awarded contracts has been US$ 18,033.74.

This NSN is fairly common among different weapons systems, belonging to 14 different platforms.

Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Apr 02, 2006, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) The Government has unlimited rights to the technical data, and the data package is complete. Valid AMCs: 1 and 2.

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 5305006397252 contains an unknown precious metal.

This NSN is associated to Schedule B 7318152000: bolts and bolts and their nuts or washers exported in the same shipment. The Schedule B End Use is listed as iron and steel products, other. NAICS classification category 332722: bolt, nut, screw, rivet, and washer manufacturing.

This information was last updated on .


Technical Characteristics

SURFACE TREATMENT
(SFTT) CADMIUM OVERALL AND CHROMATE OVERALL
MATERIAL
(MATT) STEEL COMP E4340 OVERALL OR STEEL COMP 4140 OVERALL OR STEEL COMP 8740 OVERALL OR STEEL COMP 8735 OVERALL OR STEEL COMP 6150 OVERALL OR STEEL COMP 4130 OVERALL
COUNTERSINK ANGLE
(CRSQ) 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
FASTENER LENGTH
(AASB) 0.640 INCHES MINIMUM AND 0.687 INCHES MAXIMUM
GRIP LENGTH
(ANEE) 0.188 INCHES NOMINAL
GRIP DIAMETER
(AAUR) 0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM
HARDNESS RATING
(CQFM) 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL
HEAD DIAMETER
(AASL) 0.502 INCHES MINIMUM AND 0.507 INCHES MAXIMUM
HEAD STYLE
(AASK) FLAT COUNTERSUNK
INTERNAL DRIVE STYLE
(ABQZ) HIGH-TORQUE
MATERIAL
(MATT) STEEL COMP E4340 OR STEEL COMP 4140 OR STEEL COMP 8740 OR STEEL COMP 8735 OR STEEL COMP 6150 OR STEEL COMP 4130 OVERALL
MINIMUM TENSILE STRENGTH
(CQBC) 160000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER
(AHYM) 0.250 INCHES
SPECIFICATION/STANDARD DATA
(ZZZK) 80205-NAS584 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
SURFACE FINISH
(CSYM) 32.0 MICROINCHES GRIP
SURFACE FINISH
(CSYM) 32.0 MICROINCHES THREADS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION
(STDC) QQ-P-416 TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT
(SFTT) CADMIUM AND CHROMATE OVERALL
THREAD CLASS
(AAJD) 3A
THREAD DIRECTION
(AAJF) RIGHT-HAND
THREAD LENGTH
(AASA) 0.469 INCHES MINIMUM
THREAD QUANTITY PER INCH
(CMLP) 28
THREAD SERIES DESIGNATOR
(THSD) UNF

Manufacturer Part Numbers


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