Product Details | SOCKET HEAD CAP SCREW

5305-01-377-3320 An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See BOLT, INTERNAL WRENCHING. Excludes SCREW, SHOULDER; and SCREW, MACHINE.

Part Alternates: MIL-F-18240 TYN 5/16-18UNC-3A, MILF18240TYN51618UNC3A, 5361662 ITEM 22, 5361662ITEM22, 5305-01-377-3320, 01-377-3320, 5305013773320, 013773320

Hardware and Abrasives | Screws

Supply Group (FSG) NSN Assign. NIIN
53 14 JUL 1993 01-377-3320

Drawings & Photos | NSN 5305-01-377-3320


Demand History | NSN 5305-01-377-3320

Part Number Request Date QTY Origin
5305-01-377-3320 2021-09-251 205 DIBBS
5305-01-377-3320 2021-08-236 205 DIBBS
5305-01-377-3320 2021-03-81 89 DIBBS
5305-01-377-3320 2021-03-68 89 DIBBS
5305-01-377-3320 2021-02-46 181 DIBBS
5305-01-377-3320 2015-08-216 113 DIBBS

Cross Reference | NSN 5305-01-377-3320

Part Number Cage Code Manufacturer
5361662 ITEM 22 53711 NAVAL SEA SYSTEMS COMMAND
MIL-F-18240 TYN 5/16-18UNC-3A 81349 MILITARY SPECIFICATIONS PROMULGATED BY MILITARY

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Technical Data | NSN 5305-01-377-3320

Characteristic Specifications
THREAD SERIES DESIGNATOR UNC
NOMINAL THREAD DIAMETER 0.312 INCHES
THREAD QUANTITY PER INCH 18
THREAD CLASS 3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH 0.639 INCHES NOMINAL
FASTENER LENGTH 0.639 INCHES MINIMUM AND 0.750 INCHES MAXIMUM
MATERIAL NICKEL ALLOY 400 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
HARDNESS RATING 39.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL
MINIMUM TENSILE STRENGTH 80000 POUNDS PER SQUARE INCH
HEAD STYLE C49 FLAT CHAMFER
HEAD DIAMETER 0.457 INCHES MINIMUM AND 0.469 INCHES MAXIMUM
HEAD HEIGHT 0.306 INCHES MINIMUM AND 0.312 INCHES MAXIMUM
INTERNAL DRIVE STYLE D5 HEXAGON
WIDTH ACROSS FLATS 0.250 INCHES NOMINAL
LOCKING FEATURE PELLET LOCKING FEATURE
MANUFACTURERS CODE 81349
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE MIL-F-18240 TYN 5/16-18UNC-3A

Restrictions/Controls & Freight Information | NSN 5305-01-377-3320

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:AItem does not contain precious metal
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Automatic Data Processing Equipment:0Represents items with no ADP components. NOTE: Codes 1 through 6 are only to be used when the item is Automatic Data Processing Equipment (ADPE) in its entirety and is limited to the type meeting only one of the definitions for codes 1 through 6. (See code 9)
Category Code Description
NMF Description 093486 BOLTS,NUTS OR SCREWS, NOI (SUB 3)
Less than car load rating
Less than truck load rating W Rating Variable
Water commodity Code 573 unknown
Originating Activity Code KZ Defense Supply Center Philadelphia
Philadelphia, PA 19101
Air Dimension Code A Shipment is not a consolidation and does not exceed 72 inches in any dimension.
Air Commodity B Construction materials: Includes paint and related materials, prefabricated building, wood products, metal and composition materials and their products, commercial hardware and miscellaneous items, cement, asphalt, building maintenance materials.
Air Special Handling Z No special handling required.
Special Handling Code 9 unknonwn
HAZMAT
Type of Cargo Z No special type of cargo code applicable

Management | NSN 5305-01-377-3320

Category Code Description
Cognizance Codes9BNavy-owned stocks of DLA material
Naval Inventory Control Point, Mechanicsburg
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDNDepartment of the Navy
Service OrganizationNU.S. Navy
Acquisition Advice CodesZINSURANCE/NUMERIC STOCKAGE OBJECTIVE ITEM # Items which may be required occasionally or intermittently, and prudence requires that a nominal quantity of materiel be stocked due to the essentiality or the lead time of the item. 1. The item is centrally managed, stocked, and issued. 2. Requisitions will be submitted in accordance with IMM/Service requisitioning procedures.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each