Product Details | SOCKET HEAD CAP SCREW

5305-00-551-4251 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: 8642633, 5305-00-551-4251, 00-551-4251, 5305005514251, 005514251

Hardware and Abrasives | Screws

Supply Group (FSG) NSN Assign. NIIN
53 20 OCT 1974 00-551-4251

Drawings & Photos | NSN 5305-00-551-4251


Cross Reference | NSN 5305-00-551-4251

Part Number Cage Code Manufacturer
8642633 18876 U S ARMY AVIATION AND MISSILE COMMAND

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Technical Data | NSN 5305-00-551-4251

Characteristic Specifications
THREAD SERIES DESIGNATOR UNC
NOMINAL THREAD DIAMETER 0.138 INCHES
THREAD QUANTITY PER INCH 32
THREAD CLASS 2A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH 0.313 INCHES NOMINAL
FASTENER LENGTH 0.375 INCHES NOMINAL
MATERIAL PLASTIC POLYAMIDE LOCKING FEATURE STEEL CORROSION RESISTING FASTENER
SURFACE TREATMENT OXIDE FASTENER
COLOR BLACK FASTENER
HEAD STYLE C33 PAN NO. 2
HEAD DIAMETER 0.270 INCHES MAXIMUM
HEAD HEIGHT 0.082 INCHES MAXIMUM
INTERNAL DRIVE STYLE D14 SLOT
LOCKING FEATURE PELLET THREADS

Restrictions/Controls & Freight Information | NSN 5305-00-551-4251

Category Code Description
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.
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 096630 SCREWS NOI BRASS/BRONZE/COPPER
Less than car load rating
Less than truck load rating Q 70.0
Water commodity Code 713 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