Product Details | MACHINE SCREW

5305-01-078-2901 An externally threaded fastener whose threaded portion is of one nominal diameter, No 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below No. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal 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. Excludes BOLT, CLEVIS; BOLT, EXTERNALLY RELIEVED BODY; SCREW, EXTERNALLY RELIEVED BODY; and SCREW, ASSEMBLED WASHER. See also, SCREW, INSTRUMENT; BOLT, MACHINE; BOLT, INTERNAL WRENCHING; and SCREW, CAP SOCKET HEAD.

Part Alternates: NAS1801330, NAS1801-3-30, 5305-01-078-2901, 01-078-2901, 5305010782901, 010782901

Hardware and Abrasives | Screws

Supply Group (FSG) NSN Assign. NIIN
53 10 JUN 1979 01-078-2901

Drawings & Photos | NSN 5305-01-078-2901


Demand History | NSN 5305-01-078-2901

Part Number Request Date QTY Origin
NAS1801330 2023-05-137 280 Malta
NAS1801330 2022-11-334 30 Malta
NAS1801330 2012-09-265 100 United States
NAS1801330 2009-09-273 250 US

Cross Reference | NSN 5305-01-078-2901

Part Number Cage Code Manufacturer
NAS1801-3-30 80205 NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES

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Technical Data | NSN 5305-01-078-2901

Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER 0.190 INCHES
THREAD QUANTITY PER INCH 32
THREAD CLASS 3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH 1.795 INCHES MINIMUM AND 1.874 INCHES MAXIMUM
FASTENER LENGTH 1.859 INCHES MINIMUM AND 1.906 INCHES MAXIMUM
SCREW MATERIAL STEEL COMP E4340 OR STEEL COMP 8740
SCREW MATERIAL DOCUMENT AND CLASSIFICATION MIL-S-5000 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 2ND MATERIAL RESPONSE OR AMS 6322 ASSN STD 2ND MATERIAL RESPONSE
SCREW SURFACE TREATMENT CADMIUM AND CHROMATE
SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATION QQ-P-416 TY 2 CL 2 FED SPEC SINGLE TREATMENT RESPONSE
HARDNESS RATING 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM
MINIMUM TENSILE STRENGTH 160000 POUNDS PER SQUARE INCH
HEAD STYLE A1 HEXAGON
HEAD HEIGHT 0.105 INCHES MINIMUM AND 0.120 INCHES MAXIMUM
WIDTH BETWEEN FLATS 0.305 INCHES MINIMUM AND 0.314 INCHES MAXIMUM
INTERNAL DRIVE STYLE B1 CROSS RECESS TYPE 1
SPECIFICATION/STANDARD DATA 80205-NAS1801 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD

Restrictions/Controls & Freight Information | NSN 5305-01-078-2901

Category Code Description
Shelf-Life Code:0Nondeteriorative
Hazardous Material Indicator CodeNThere is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Demilitarization Code:ANon-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Controlled Inventory Item Code:UUNCLASSIFIED
Precious Metals Indicator Code:UPrecious metal type is unknown
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Category Code Description
No Freight Information