NSN 5305-01-446-1336 GS553BW412, GS553BW4-12, 91253A540

Product Details | SOCKET HEAD CAP SCREW

5305-01-446-1336 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: GS553BW412, GS553BW4-12, 91253A540, 5305-01-446-1336, 01-446-1336, 5305014461336, 014461336

Hardware and Abrasives | Screws

Supply Group (FSG)	NSN Assign.	NIIN	Item Name Code (INC)
53	24 JUN 1997	01-446-1336	16282 ( SCREW, CAP, SOCKET HEAD )

Drawings & Photos | NSN 5305-01-446-1336

Part Number	Request Date	QTY	Origin
5305-01-446-1336	2025-05-133	130	DIBBS
91253A540	2024-05-122	140	DIBBS
GS553BW4-12	2024-05-122	140	DIBBS
91253A540	2024-01-31	100	DIBBS
GS553BW4-12	2024-01-31	100	DIBBS
91253A540	2024-01-23	63	DIBBS
GS553BW4-12	2024-01-23	63	DIBBS
91253A540	2023-11-333	61	DIBBS
GS553BW4-12	2023-11-333	61	DIBBS
91253A540	2023-09-253	103	DIBBS
GS553BW4-12	2023-09-253	103	DIBBS
91253A540	2023-04-102	96	DIBBS
GS553BW4-12	2023-04-102	96	DIBBS
91253A540	2021-07-209	79	DIBBS
GS553BW4-12	2021-07-209	79	DIBBS
91253A540	2019-08-233	26	DIBBS
GS553BW4-12	2019-08-233	26	DIBBS
91253A540	2019-03-68	25	DIBBS
GS553BW4-12	2019-03-68	25	DIBBS
5305-01-446-1336	2016-05-138	10	DIBBS
5305-01-446-1336	2016-01-28	10	DIBBS
5305-01-446-1336	2015-08-237	8	DIBBS
5305-01-446-1336	2013-03-81	2	DIBBS
5305-01-446-1336	2012-02-39	1	DIBBS
5305-01-446-1336	2012-01-19	2	DIBBS
5305-01-446-1336	2011-12-355	1	DIBBS

Cross Reference | NSN 5305-01-446-1336

Part Number	Cage Code	Manufacturer
91253A540	39428	MCMASTER-CARR SUPPLY COMPANY
GS553BW4-12	26512	NORTHROP GRUMMAN SYSTEMS CORPORATION DIV NORTHROP GRUMMAN AEROSPACE

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Related Products | NSN 5305-01-446-1336

5305-01-446-1338, 5305-01-446-1422, 5305-01-446-1457, 5305-01-446-1605, 5305-01-446-1606

Technical Data | NSN 5305-01-446-1336

Characteristic	Specifications
THREAD SERIES DESIGNATOR	UNRC
NOMINAL THREAD DIAMETER	0.250 INCHES
THREAD QUANTITY PER INCH	20
THREAD CLASS	RC
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.720 INCHES NOMINAL
FASTENER LENGTH	0.750 INCHES MINIMUM
MATERIAL	IRON ALLOY 660 OVERALL
COLOR	BLACK OVERALL
MINIMUM TENSILE STRENGTH	150000 POUNDS PER SQUARE INCH
HEAD STYLE	C50 FLAT COUNTERSUNK
HEAD DIAMETER	0.480 INCHES MINIMUM AND 0.531 INCHES MAXIMUM
COUNTERSINK ANGLE	38.0 DEGREES MINIMUM AND 44.0 DEGREES MAXIMUM
INTERNAL DRIVE STYLE	D5 HEXAGON
WIDTH ACROSS FLATS	0.156 INCHES NOMINAL

Restrictions/Controls & Freight Information | NSN 5305-01-446-1336

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.
Automatic Data Processing Equipment:	0	Represents items with no ADP components. NOTE: Codes 1 through 6 are only to be used when the item is Automatic Data Processing Equipment (ADPE) in its entirety and is limited to the type meeting only one of the definitions for codes 1 through 6. (See code 9)

Category	Code	Description
NMF Description	096640	SCREWS, IRON OR STEEL
Less than car load rating
Less than truck load rating	Q	70.0
Water commodity Code	713	unknown
Originating Activity Code	KH	Defense Industrial Supply Center Philadelphia, PA 19111
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 5305-01-446-1336

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 HD : Each

Category	Code	Description
Stores Account Code	1	Marine Corps Stock Fund Account Item.
Combat Essentiality Code	5	Critical Repair Part to a Combat Essential End Item. Those parts or components whose failure in a combat essential end item will render the end item inoperative or reduce its effectiveness below the minimum acceptable level of efficiency.
Materiel Management Code	B	All CommoditiesDefense Logistics Agency, (DLA,)
Echelon Management Code	2	ICP/DSSC Marine Corps-managed Recoverability Code D items and Defense Logistics Agency (DLA)/TACOM/GSA) items which the integrated manager has not decontrolled.
Source of Supply	SMS	Defense Logistics Agency Enterprise Business Systems
Agency	DM	U.S. Marine Corps
Service Organization	M	U.S. Marine Corps
Reparability	Z	Nonreparable item. When unserviceable, condemn and dispose at the level indicated by the first digit of the maintenance code.
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 HD : 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 HD : Each