Part Details | INTERNAL WRENCHING BOLT
5306-01-203-6812 An externally threaded fastener whose threaded portion is of one nominal diameter, No. 10 (0.190 IN.) (5 mm) or larger. It is designed with an internal socket or internal multiple spline for use with an internal driver. The head is beveled (conical) or cylindrical in shape. Items with cylindrical shaped heads must have an externally relieved body. A locking feature may be incorporated in the design of the head or threads. See also SCREW, CAP, SOCKET HEAD. Excludes SETSCREW; SCREW, SHOULDER; BOLT, SHOULDER; SCREW, EXTERNALLY RELIEVED BODY; BOLT, EXTERNALLY RELIEVED BODY; and SCREW, MACHINE.
Alternate Parts: FT11481314, FT1148-13-14, CS101401, CS1014-01, HFU 790012DM16, HFU 7900-12D-M-16, HFU790012DM16, HFU7900-12D-M-16, S2581, S-2581, HFU790012DM1, HFU7900-12D-M-1, HFU 790012DM16, HFU 7900-12D-M-16, 5306-01-203-6812, 01-203-6812, 5306012036812, 012036812
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | MAR 17, 1985 | 01-203-6812 | 06666 ( BOLT, INTERNAL WRENCHING ) |
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 5306-01-203-6812
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| FT1148-13-14 | 58998 | FASTENER INNOVATION TECHNOLOGY, INC.DBA F I T |
| CS1014-01 | 58794 | FASTENER TECHNOLOGY CORP. |
| HFU 7900-12D-M-16 | 72914 | GRIMES AEROSPACE COMPANYDBA HONEYWELL |
| HFU7900-12D-M-16 | 17446 | HUCK INTERNATIONAL, INC.DBA ARCONIC FASTENING SYSTEMS AND |
| S-2581 | 97928 | HUCK INTL INC |
| HFU7900-12D-M-1 | 97928 | HUCK INTL INC |
| HFU 7900-12D-M-16 | 97928 | HUCK INTL INC |
Technical Data | NSN 5306-01-203-6812
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNJF |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| THREAD QUANTITY PER INCH | 28 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.625 INCHES MAXIMUM |
| FASTENER LENGTH | 0.625 INCHES MAXIMUM |
| HEAD HEIGHT | 0.308 INCHES MINIMUM AND 0.315 INCHES MAXIMUM |
| WIDTH BETWEEN FLATS | 0.489 INCHES MINIMUM AND 0.500 INCHES MAXIMUM |
| EXTENDED WASHER DIAMETER | 0.625 INCHES NOMINAL |
| EXTENDED WASHER THICKNESS | 0.055 INCHES MINIMUM AND 0.065 INCHES MAXIMUM |
| WIDTH ACROSS FLATS | 0.219 INCHES MINIMUM AND 0.221 INCHES MAXIMUM |
| EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 1 |
| FIRST DIAMETER FROM HEAD | 0.205 INCHES MINIMUM AND 0.206 INCHES MAXIMUM |
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.563 INCHES NOMINAL |