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NSN 5305-01-157-7401, 5305011577401
Cancelled -> Replaced by 5305010219161

Federal Supply Classification
FSC 5305 - Screws
National Item Identification Number
NIIN 011577401
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 5305-01-157-7401

National Stock Number (NSN) 5305-01-157-7401, or NIIN 011577401, (screw,close tolerance) was assigned July 11, 1983 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 2 stock numbers: 5305010219161, 5305001518637.

There are 5 manufacturer part numbers associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 4 suppliers. Today, 4 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, there are no suppliers that are deemed design controlled or valid supply parts.

This part number is actively being procured by the US Government, with procurement history within the last 90 days. There have been 5 contracts issued for this part number, with 5 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 4 different suppliers. The last contract numbers awarded were: SPE4A625P4979, SPE4A621PE306, SPE5E218V7368, SPE5E218V4834, SPM54006D0017. The total value of the awarded contracts has been US$ 23,692.26.

This NSN is fairly common among different weapons systems, belonging to 15 different platforms.

There has been very little demand for this national stock number. The demand for this NSN originated from less than 5 countries. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Jun 02, 2005, 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 5305011577401 does not contain precious metals.

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

DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER
(CRZS) 1.645 INCHES NOMINAL FIRST HOLE
FASTENER LENGTH
(AASB) 1.731 INCHES MINIMUM AND 1.751 INCHES MAXIMUM
GRIP DIAMETER
(AAUR) 0.2487 INCHES MINIMUM AND 0.2492 INCHES MAXIMUM
GRIP LENGTH
(ANEE) 1.312 INCHES MINIMUM AND 1.328 INCHES MAXIMUM
HEAD HEIGHT
(AASU) 0.126 INCHES MINIMUM AND 0.141 INCHES MAXIMUM
HEAD STYLE
(AASK) CROWNED HEXAGON
INTERNAL DRIVE STYLE
(ABQZ) SLOT
MATERIAL DOCUMENT AND CLASSIFICATION
(MDCL) AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL
(MATT) STEEL COMP XM-13 OVERALL
MINIMUM TENSILE STRENGTH
(CQBC) 63000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER
(AHYM) 0.250 INCHES
SHANK UNTHREADED HOLE DIAMETER
(AAWB) 0.076 INCHES MINIMUM AND 0.086 INCHES MAXIMUM FIRST HOLE
SPECIAL FEATURES
(FEAT) RETAINING ELEMENT IN SHANK
WIDTH BETWEEN FLATS
(AATB) 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM
SURFACE FINISH
(CSYM) 32.0 MICROINCHES BEARING SURFACE OF HEAD
SURFACE FINISH
(CSYM) 32.0 MICROINCHES GRIP
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION
(STDC) QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT
(SFTT) PASSIVATE OVERALL
THREAD CLASS
(AAJD) 3A
THREAD DIRECTION
(AAJF) RIGHT-HAND
THREAD LENGTH
(AASA) 0.278 INCHES MINIMUM AND 0.329 INCHES MAXIMUM
THREAD SERIES DESIGNATOR
(THSD) UNJF
THREAD QUANTITY PER INCH
(CMLP) 28

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