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NSN 5305-00-083-4619, 5305000834619
SCREW,CLOSE TOLERANCE

Federal Supply Classification
FSC 5305 - Screws
National Item Identification Number
NIIN 000834619
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 5305-00-083-4619

National Stock Number (NSN) 5305-00-083-4619, or NIIN 000834619, (screw,close tolerance) was assigned December 3, 1972 in the Federal Logistics Information System (FLIS). NIIN 000834619 was cancelled on December 2, 2012, with a cancelled status of "Item is Cancelled - USE." This NSN was replaced by NSN 5305011975940. This NSN does not replace any other NSNs.

There are 3 manufacturer part numbers associated with this NSN. One of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. Today, 2 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 2 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 unique to one weapons system.

Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Apr 01, 2020, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) Acquisition of this part is controlled by QPL procedures. 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 5305000834619 contains an unknown precious metal.

This information was last updated on .


Technical Characteristics

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION
(STDC) QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
LOCKING FEATURE
(AAUM) DETENT BALL FASTENER
GRIP LENGTH
(ANEE) 0.562 INCHES MINIMUM AND 0.578 INCHES MAXIMUM
SURFACE TREATMENT
(SFTT) PASSIVATE OVERALL
THREAD DIRECTION
(AAJF) RIGHT-HAND
THREAD LENGTH
(AASA) 0.278 INCHES MINIMUM AND 0.329 INCHES MAXIMUM
HEAD DIAMETER
(AASL) 0.449 INCHES MINIMUM AND 0.507 INCHES MAXIMUM
SHANK UNTHREADED HOLE DIAMETER
(AAWB) 0.076 INCHES MINIMUM FIRST HOLE AND 0.086 INCHES MAXIMUM FIRST HOLE
THREAD SERIES DESIGNATOR
(THSD) UNJF
THREAD CLASS
(AAJD) 3A
FASTENER LENGTH
(AASB) 0.981 INCHES MINIMUM AND 1.001 INCHES MAXIMUM
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER
(CRZS) 0.885 INCHES MINIMUM FIRST HOLE AND 0.905 INCHES MAXIMUM FIRST HOLE
COUNTERSINK ANGLE
(CRSQ) 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
HEAD STYLE
(AASK) FLAT COUNTERSUNK
GRIP DIAMETER
(AAUR) 0.2487 INCHES MINIMUM AND 0.2492 INCHES MAXIMUM
INTERNAL DRIVE STYLE
(ABQZ) HIGH-TORQUE
NOMINAL THREAD DIAMETER
(AHYM) 0.250 INCHES
SURFACE FINISH
(CSYM) 32.0 MICROINCHES GRIP
THREAD QUANTITY PER INCH
(CMLP) 28

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