NSN 5306-00-251-2181 4X181C1, 00-251-2181, 002512181
Product Details | EXTERNALLY RELIEVED BODY BOLT
5306-00-251-2181 An externally threaded fastener whose threaded portion is of one nominal diameter, and whose unthreaded portion has been machined or ground in one or more places or over its entire length to a maximum diameter less than the minimum pitch diameter of the thread (excludes undercuts for thread relief). It is No. 10 (0.190 IN.) (5 mm) or larger in size and has a head which is not designed to be held or driven with an inserted driver or designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Excludes BOLT, INTERNAL WRENCHING and THUMBSCREW. See also SCREW, EXTERNALLY RELIEVED BODY.
Part Alternates: 4X181C1, 5306-00-251-2181, 00-251-2181, 5306002512181, 002512181
Hardware and Abrasives | Bolts
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | 13 JUN 1973 | 00-251-2181 | 06675 ( BOLT, EXTERNALLY RELIEVED BODY ) |
Drawings & Photos | NSN 5306-00-251-2181
Cross Reference | NSN 5306-00-251-2181
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 4X181C1 | 98296 | STANDARD MFG CO INC |
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Related Products | NSN 5306-00-251-2181
Technical Data | NSN 5306-00-251-2181
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNF |
| NOMINAL THREAD DIAMETER | 0.625 INCHES |
| THREAD QUANTITY PER INCH | 18 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.656 INCHES MINIMUM AND 0.718 INCHES MAXIMUM |
| FASTENER LENGTH | 1.094 INCHES MINIMUM AND 1.156 INCHES MAXIMUM |
| MATERIAL | STEEL OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |
| HARDNESS RATING | 30.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM OVERALL |
| HEAD STYLE | C13 SQUARE |
| HEAD HEIGHT | 0.155 INCHES MINIMUM AND 0.160 INCHES MAXIMUM |
| WIDTH BETWEEN FLATS | 1.094 INCHES MINIMUM AND 1.156 INCHES MAXIMUM |
| EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 2 |
| FIRST DIAMETER FROM HEAD | 0.620 INCHES MINIMUM AND 0.625 INCHES MAXIMUM |
| SECOND DIAMETER FROM HEAD | 0.499 INCHES MINIMUM AND 0.501 INCHES MAXIMUM |
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.219 INCHES MINIMUM AND 0.281 INCHES MAXIMUM |
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER | 0.313 INCHES MINIMUM AND 0.385 INCHES MAXIMUM |
| MANUFACTURERS CODE | 98296 |
| DESIGN CONTROL REFERENCE | 4X181C1 |
Restrictions/Controls & Freight Information | NSN 5306-00-251-2181
| 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 | ||