5305-01-474-1378, SCREW,MACHINE

National Stock Number:
5305-01-474-1378

Federal Supply Class:
5305

National Item Identification Number:
014741378

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.

Manufacturer Information:

1/4-20UNC-2A LG =1/4	D9182	ZF INDUSTRIEANTRIEBE WITTEN GMBH
124-4322638 PC 26	53711	NAVAL SEA SYSTEMS COMMAND
124-4322639 PC 26	53711	NAVAL SEA SYSTEMS COMMAND
124-4322640 PC 31	53711	NAVAL SEA SYSTEMS COMMAND
124-4322642 PC 38	53711	NAVAL SEA SYSTEMS COMMAND
124-4322644 PC 60	53711	NAVAL SEA SYSTEMS COMMAND
124-4364811 PC 36	53711	NAVAL SEA SYSTEMS COMMAND
124-4364812 PC 41	53711	NAVAL SEA SYSTEMS COMMAND
124-4364814 PC 36	53711	NAVAL SEA SYSTEMS COMMAND
124-4364815 PC 33	53711	NAVAL SEA SYSTEMS COMMAND
124-4364816 PC 27	53711	NAVAL SEA SYSTEMS COMMAND
124-4364817 PC 31	53711	NAVAL SEA SYSTEMS COMMAND
124-4364818 PC 33	53711	NAVAL SEA SYSTEMS COMMAND
124-4498686 PC 43	53711	NAVAL SEA SYSTEMS COMMAND
124-4557340 PC 38	53711	NAVAL SEA SYSTEMS COMMAND
124-5202449 PC 60	53711	NAVAL SEA SYSTEMS COMMAND
124-5563772 PC 92	53711	NAVAL SEA SYSTEMS COMMAND
124-5563773 PC 60	53711	NAVAL SEA SYSTEMS COMMAND
124-5563777 PC 43	53711	NAVAL SEA SYSTEMS COMMAND
124-5588671 PC 59	53711	NAVAL SEA SYSTEMS COMMAND
124-5589899 PC 62	53711	NAVAL SEA SYSTEMS COMMAND
124-5754756 PC 38	53711	NAVAL SEA SYSTEMS COMMAND
4322644 PC 60	53711	NAVAL SEA SYSTEMS COMMAND

Techincal Specification:

FASTENER LENGTH	0.250 INCHES NOMINAL
HEAD STYLE	ROUND
NOMINAL THREAD DIAMETER	0.250 INCHES
SCREW MATERIAL DOCUMENT AND CLASSIFICATION	FF-S-92 FED SPEC 1ST MATERIAL RESPONSE
SCREW MATERIAL	STEEL
SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-Z-325,TYPE2,CLASS2 FED SPEC 1ST TREATMENT RESPONSE OR QQ-P-416,TYPE1,CLASSC FED SPEC 2ND TREATMENT RESPONSE
SCREW SURFACE TREATMENT	ZINC OR CADMIUM
THREAD DIRECTION	RIGHT-HAND
THREAD CLASS	2A
THREAD SERIES DESIGNATOR	UNC
THREAD QUANTITY PER INCH	20

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