NSN 5305-01-264-4521 MILDTL1222, MIL-DTL-1222, MILS1222

Product Details | SOCKET HEAD CAP SCREW

5305-01-264-4521 An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See BOLT, INTERNAL WRENCHING. Excludes SCREW, SHOULDER; and SCREW, MACHINE.

Part Alternates: MILDTL1222, MIL-DTL-1222, MILS1222, MIL-S-1222, 5305-01-264-4521, 01-264-4521, 5305012644521, 012644521

Hardware and Abrasives | Screws

Supply Group (FSG)	NSN Assign.	NIIN	Item Name Code (INC)
53	30 SEP 1987	01-264-4521	16282 ( SCREW, CAP, SOCKET HEAD )

Drawings & Photos | NSN 5305-01-264-4521

Part Number	Request Date	QTY	Origin
MILDTL1222	2023-06-159	12	United States
MILS1222	2015-03-89	3000	BH
MILS1222	2014-08-230	1	US
MILDTL1222	2013-06-169	59	US
MILS1222	2012-07-209	4	United States
MILS1222	2012-03-74	1	US
MILS1222	2011-02-49	3	US
MILS1222	2011-02-49	4	US
MILS1222	2011-02-49	5	US
MILS1222	2011-02-49	10	US
MILS1222	2011-02-49	18	US
MILS1222	2011-02-49	35	US
MILS1222	2011-02-49	40	US
MILS1222	2011-02-49	42	US
MILS1222	2011-02-49	185	US
MILS1222	2011-02-49	195	US

Cross Reference | NSN 5305-01-264-4521

Part Number	Cage Code	Manufacturer
MIL-DTL-1222	81349	MILITARY SPECIFICATIONS PROMULGATED BY MILITARY
MIL-S-1222	81349	MILITARY SPECIFICATIONS PROMULGATED BY MILITARY

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Related Products | NSN 5305-01-264-4521

5305-01-264-4522, 5305-01-264-4523, 5305-01-264-4524, 5305-01-264-4525, 5305-01-264-4526

Technical Data | NSN 5305-01-264-4521

Characteristic	Specifications
THREAD SERIES DESIGNATOR	UNC
NOMINAL THREAD DIAMETER	0.438 INCHES
THREAD QUANTITY PER INCH	14
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.827 INCHES MINIMUM AND 1.000 INCHES MAXIMUM
FASTENER LENGTH	0.970 INCHES MINIMUM AND 1.000 INCHES MAXIMUM
MATERIAL	STEEL COMP 4340 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM A574 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
HARDNESS RATING	39.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL
MINIMUM TENSILE STRENGTH	180000 POUNDS PER SQUARE INCH
MINIMUM YIELD STRENGTH	155000 POUNDS PER SQUARE INCH
HEAD STYLE	C49 FLAT CHAMFER
HEAD DIAMETER	0.642 INCHES MINIMUM AND 0.656 INCHES MAXIMUM
HEAD HEIGHT	0.430 INCHES MINIMUM AND 0.438 INCHES MAXIMUM
INTERNAL DRIVE STYLE	D5 HEXAGON
WIDTH ACROSS FLATS	0.375 INCHES NOMINAL
NONDEFINITIVE SPEC/STD DATA	2 TYPE
MANUFACTURERS CODE	81349
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE	MIL-S-1222

Restrictions/Controls & Freight Information | NSN 5305-01-264-4521

Restrictions
Freight

Category	Code	Description
Shelf-Life Code:	0	Nondeteriorative
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.
Controlled Inventory Item Code:	U	UNCLASSIFIED
Precious Metals Indicator Code:	A	Item does not contain precious metal
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
NMF Description	093486	BOLTS,NUTS OR SCREWS, NOI (SUB 3)
Less than car load rating
Less than truck load rating	W	Rating Variable
Water commodity Code	713	unknown
Originating Activity Code	KZ	Defense Supply Center Philadelphia Philadelphia, PA 19101
Air Dimension Code	A	Shipment is not a consolidation and does not exceed 72 inches in any dimension.
Air Commodity	B	Construction materials: Includes paint and related materials, prefabricated building, wood products, metal and composition materials and their products, commercial hardware and miscellaneous items, cement, asphalt, building maintenance materials.
Air Special Handling	Z	No special handling required.
Special Handling Code	9	unknonwn
HAZMAT
Type of Cargo	Z	No special type of cargo code applicable

Management | NSN 5305-01-264-4521

Air Force
Navy

Category	Code	Description
Budget Code	9	General Support DIV57X4921.070:Air Force decentrally managed expense items (ERRC XB3, XF-3) with a unit cost of less than $250,000 that are requisitioned/procured at base (retail) level from DLA, GSA, Army, Navy, Depot Maintenance Service, Air Force Industrial Fund (AFMC), local manufacture and commercial vendors.
Price Validation	N	The current standard price in Catalog Management Data (CMD) has not analyzed or coded for LP/LM. The price has not been analyzed or reviewed for accuracy. ZOP or Standard price challenges are permissible, but must be supported with adequate justification. However, if coded for Local Purchase (LP) or Fabrication/Manufacture as indicated with an (LM) Acquisition Advice Code of ?L? or?F?,the case must be evaluated locally where purchased or fabricated.
Fund Code	SF	Stock fund applicable to items managed for the Air Force by the respective Inventory Control Point.
Materiel Management Aggregation Code	SX	SX:AF SICA RESIDUAL MMAC-OC-ALC
Source of Supply	SMS	Defense Logistics Agency Enterprise Business Systems
Agency	DF	Department of the Air Force
Service Organization	F	U.S. Air Force
Reparability	N	Stock Fund (except Munitions)
Acquisition Advice Codes	Z	INSURANCE/NUMERIC STOCKAGE OBJECTIVE ITEM # Items which may be required occasionally or intermittently, and prudence requires that a nominal quantity of materiel be stocked due to the essentiality or the lead time of the item. 1. The item is centrally managed, stocked, and issued. 2. Requisitions will be submitted in accordance with IMM/Service requisitioning procedures.
Controlled Item Code	U	UNCLASSIFIED
Shelf Life Code	0	Nondeteriorative
Purchasing	QTY UOM	1 EA : Each

Category	Code	Description
Cognizance Codes	9B	Navy-owned stocks of DLA material Naval Inventory Control Point, Mechanicsburg
Source of Supply	SMS	Defense Logistics Agency Enterprise Business Systems
Agency	DN	Department of the Navy
Service Organization	N	U.S. Navy
Acquisition Advice Codes	Z	INSURANCE/NUMERIC STOCKAGE OBJECTIVE ITEM # Items which may be required occasionally or intermittently, and prudence requires that a nominal quantity of materiel be stocked due to the essentiality or the lead time of the item. 1. The item is centrally managed, stocked, and issued. 2. Requisitions will be submitted in accordance with IMM/Service requisitioning procedures.
Controlled Item Code	U	UNCLASSIFIED
Shelf Life Code	0	Nondeteriorative
Purchasing	QTY UOM	1 EA : Each