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NSN 5305-01-495-9256, 5305014959256
SCREW,CLOSE TOLERANCE

Federal Supply Classification
FSC 5305 - Screws
National Item Identification Number
NIIN 014959256
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 5305-01-495-9256

National Stock Number (NSN) 5305-01-495-9256, or NIIN 014959256, (screw,close tolerance) was assigned March 28, 2002 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.

There are 5 manufacturer part numbers associated with this NSN. One of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 16 suppliers. Today, 15 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 15 suppliers are deemed design controlled or valid supply parts. ISO Group has several sources of supply for this NSN.

This part number has not been procured by the US Government in over a year. There have been 15 contracts issued for this part number, with 15 awards given. There is moderate competition for this NSN. The US Government has awarded contracts to 6 different suppliers. The last contract numbers awarded were: SPE5EY20F8749, SPE5EY20F1045, SPE5EY19F385S, SPE5EY19F160X, SPE5EY19F9705. The total value of the awarded contracts has been US$ 62,096.26.

This NSN is somewhat common among different platforms, belonging to 3 different weapons systems.

There has been a small amount of demand for this national stock number. The demand for this NSN originated from less than 5 countries. The 24 month forecast from the US Government for this part number has low volatility, with an estimated forecasted value of US$ 14,065. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Mar 31, 2020, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. The Government physically does not have in its possession sufficient, accurate, or legible data to purchase this part from other than current source(s). (NOTE: This code is applicable only to parts under immediate buy requirements and only as long as the deficiency is under review for resolution and appropriate recoding.) Valid AMCs: 1, 2, 3, 4 and 5.

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 5305014959256 does not contain precious metals.

This NSN is associated to Schedule B 7508900000: other articles of nickel, nesoi (excluding cloth, grill & netting of nickel wire). The Schedule B End Use is listed as finished metal shapes. NAICS classification category 332999: all other miscellaneous fabricated metal product manufacturing.

This information was last updated on .


Technical Characteristics

COUNTERSINK ANGLE
(CRSQ) 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
FASTENER LENGTH
(AASB) 0.910 INCHES MINIMUM AND 0.940 INCHES MAXIMUM
GRIP LENGTH
(ANEE) 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM
GRIP DIAMETER
(AAUR) 0.249 INCHES NOMINAL
HEAD DIAMETER
(AASL) 0.497 INCHES MINIMUM AND 0.506 INCHES MAXIMUM
HEAD STYLE
(AASK) FLAT COUNTERSUNK
INTERNAL DRIVE STYLE
(ABQZ) TORX
PART NAME ASSIGNED BY CONTROLLING AGENCY
(CXCY) BOLT, 100 DEGREE TENSION "HEAD, GEAR DRIVE RECESS
MATERIAL DOCUMENT AND CLASSIFICATION
(MDCL) AMS 5662 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL
(MATT) NICKEL ALLOY 718 OVERALL
NOMINAL THREAD DIAMETER
(AHYM) 0.250 INCHES
SPECIAL FEATURES
(FEAT) 125 KSI SHEAR STRENGTH
POINT STYLE
(ABQJ) FLAT
POINT DIAMETER
(AAVA) 0.425 INCHES NOMINAL
SPLINE MAJOR DIAMETER
(AAUJ) 0.154 INCHES MINIMUM AND 0.156 INCHES MAXIMUM
SURFACE TREATMENT
(SFTT) PASSIVATE OVERALL
THREAD CLASS
(AAJD) 3A
THREAD DIRECTION
(AAJF) RIGHT-HAND
THREAD LENGTH
(AASA) 0.420 INCHES MINIMUM AND 0.430 INCHES MAXIMUM
THREAD QUANTITY PER INCH
(CMLP) 28
THREAD SERIES DESIGNATOR
(THSD) UNJF

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