NSN 5305-00-453-3909 A206A8, 21751203, 21751-203
Product Details | MACHINE SCREW
5305-00-453-3909 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: A206A8, 21751203, 21751-203, 5305-00-453-3909, 00-453-3909, 5305004533909, 004533909
Hardware and Abrasives | Screws
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | 08 MAY 1970 | 00-453-3909 | 06657 ( SCREW, MACHINE ) |
Drawings & Photos | NSN 5305-00-453-3909
Demand History | NSN 5305-00-453-3909
| Part Number | Request Date | QTY | Origin |
|---|---|---|---|
| A206A8 | 2025-09-268 | 1112 | DIBBS |
| A206A8 | 2025-07-211 | 1112 | DIBBS |
| A206A8 | 2025-07-210 | 1 | DIBBS |
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Technical Data | NSN 5305-00-453-3909
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNC |
| NOMINAL THREAD DIAMETER | 0.112 INCHES |
| THREAD QUANTITY PER INCH | 40 |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.131 INCHES MINIMUM AND 0.201 INCHES MAXIMUM |
| FASTENER LENGTH | 0.230 INCHES MINIMUM AND 0.250 INCHES MAXIMUM |
| SCREW MATERIAL | STEEL CORROSION RESISTING |
| SCREW MATERIAL DOCUMENT AND CLASSIFICATION | BS970 EN 58 SERIES,FSCM K7766 NATIONAL SPEC SINGLE MATERIAL RESPONSE |
| HEAD STYLE | A39 FLAT COUNTERSUNK |
| HEAD DIAMETER | 0.191 INCHES MINIMUM AND 0.206 INCHES MAXIMUM |
| COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| INTERNAL DRIVE STYLE | B10 SLOT |
| MANUFACTURERS CODE | K7766 |
| DESIGN CONTROL REFERENCE | A206A8 |
Restrictions/Controls & Freight Information | NSN 5305-00-453-3909
| Category | Code | Description |
|---|---|---|
| Shelf-Life Code: | 0 | Nondeteriorative |
| Hazardous Material Indicator Code | N | There is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials |
| Demilitarization Code: | A | Non-Munitions List Item/ Non-Strategic List Item - Demilitarization not required. |
| Controlled Inventory Item Code: | U | UNCLASSIFIED |
| Precious Metals Indicator Code: | A | Item 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: | 0 | Represents 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 | 98 | DLIS-LFF Battle Creek, MI 49037-3084 |
| 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 5305-00-453-3909
Navy| Category | Code | Description |
|---|---|---|
| Cognizance Codes | 9B | Navy-owned stocks of DLA material Naval Inventory Control Point, Mechanicsburg |
| Source of Supply | SMS | Defense Logistics Agency Enterprise Business Systems |
| Agency | DN | Department of the Navy |
| Service Organization | N | U.S. Navy |
| Acquisition Advice Codes | V | TERMINAL ITEM # Identifies items in stock, but future procurement is not authorized. Requisitions may continue to be submitted until stocks are exhausted. Preferred item National Stock Number is normally provided by application of the phrase: When Exhausted Use (NSN). Requisitions will be submitted in accordance with IMM/Service requisitioning procedures as applicable. |
| Controlled Item Code | U | UNCLASSIFIED |
| Shelf Life Code | 0 | Nondeteriorative |