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National Stock Number:
5305-01-025-1261
Federal Supply Class:
5305
National Item Identification Number:
010251261
Description:
SCREW,MACHINE
Detail:
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.
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Manufacturer Information:
| 21T01-2-08-2AA | 71286 | HOWMET GLOBAL FASTENING SYSTEMS INC | | 951277-5 | 06481 | NORTHROP GRUMMAN SYSTEMS CORPORATION | | 951277-5 | 0E0Z8 | AEROSPACE MANUFACTURING CORPORATION | | 951277-5 | 3ZZH7 | SEBESTYEN AEROSPACE INC DBA CALIFORNIA AEROSPACE MANUFACTURING | | 951277-5 | 51506 | ACCURATE SCREW MACHINE CORP | | CA1376-6-2-8 | 29372 | HOWMET GLOBAL FASTENING SYSTEMS INC. |
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Techincal Specification:
| HEAD STYLE | KNURLED NO. 3 | | INTERNAL DRIVE STYLE | SLOT | | NOMINAL THREAD DIAMETER | 0.138 INCHES | | SCREW MATERIAL | STEEL COMP 303SE OR STEEL COMP 303 | | SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE | | SCREW SURFACE TREATMENT | PASSIVATE | | SPECIAL FEATURES | FURNISH WITH ONE ALUMINUM RETAINER | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.235 INCHES MINIMUM AND 0.265 INCHES MAXIMUM | | THREAD QUANTITY PER INCH | 32 | | THREAD SERIES DESIGNATOR | UNC | | HEAD HEIGHT | 0.145 INCHES MINIMUM AND 0.195 INCHES MAXIMUM | | HEAD DIAMETER | 0.230 INCHES MINIMUM AND 0.270 INCHES MAXIMUM | | FASTENER LENGTH | 0.480 INCHES MINIMUM AND 0.570 INCHES MAXIMUM |
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