NSN 5305-00-498-6991 P343039300, P343-0393-00, 3430393000
Product Details | MACHINE SCREW
5305-00-498-6991 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: P343039300, P343-0393-00, 3430393000, 343-0393-000, 5305-00-498-6991, 00-498-6991, 5305004986991, 004986991
Hardware and Abrasives | Screws
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | 20 OCT 1969 | 00-498-6991 | 06657 ( SCREW, MACHINE ) |
Drawings & Photos | NSN 5305-00-498-6991
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Technical Data | NSN 5305-00-498-6991
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNC |
| NOMINAL THREAD DIAMETER | 0.099 INCHES |
| THREAD QUANTITY PER INCH | 48 |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.504 INCHES MINIMUM AND 0.578 INCHES MAXIMUM |
| FASTENER LENGTH | 0.546 INCHES MINIMUM AND 0.578 INCHES MAXIMUM |
| SCREW MATERIAL | COPPER ALLOY |
| SCREW MATERIAL DOCUMENT AND CLASSIFICATION | QQ-B-613 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-B-626 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-W-321 FED SPEC SINGLE MATERIAL RESPONSE |
| SCREW SURFACE TREATMENT | NICKEL |
| MINIMUM TENSILE STRENGTH | 55000 POUNDS PER SQUARE INCH |
| HEAD STYLE | A23 PAN |
| HEAD DIAMETER | 0.180 INCHES MINIMUM AND 0.193 INCHES MAXIMUM |
| HEAD HEIGHT | 0.062 INCHES MINIMUM AND 0.071 INCHES MAXIMUM |
| INTERNAL DRIVE STYLE | B1 CROSS RECESS TYPE 1 |
| MANUFACTURERS CODE | 77250 |
| DESIGN CONTROL REFERENCE | P343-0393-00 |
Restrictions/Controls & Freight Information | NSN 5305-00-498-6991
| Category | Code | Description |
|---|---|---|
| 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. |
| Precious Metals Indicator Code: | U | Precious 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 | ||