NSN 5305-01-237-9371 YS-21, YS21, 53050100001

Product Details | SOCKET HEAD CAP SCREW

5305-01-237-9371 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: YS-21, YS21, 53050100001, 5305-010-0001, 5305-01-237-9371, 01-237-9371, 5305012379371, 012379371

Hardware and Abrasives | Screws

Supply Group (FSG)	NSN Assign.	NIIN	Item Name Code (INC)
53	07 AUG 1986	01-237-9371	16282 ( SCREW, CAP, SOCKET HEAD )

Drawings & Photos | NSN 5305-01-237-9371

Part Number	Request Date	QTY	Origin
5305-01-237-9371	2018-07-197	20	us
5305-01-237-9371	2011-07-211	132	DIBBS
5305-01-237-9371	2010-07-211	83	DIBBS
5305-01-237-9371	2010-03-65	83	DIBBS
5305-01-237-9371	2010-01-15	10	DIBBS
5305-01-237-9371	2009-12-351	19	DIBBS
5305-01-237-9371	2009-11-334	2	DIBBS
5305-01-237-9371	2009-11-334	5	DIBBS
5305-01-237-9371	2009-11-323	5	DIBBS
5305-01-237-9371	2009-07-206	5	DIBBS
5305-01-237-9371	2009-06-163	2	DIBBS
5305-01-237-9371	2008-07-206	193	DIBBS
5305-01-237-9371	2008-07-205	5	DIBBS
5305-01-237-9371	2008-07-191	5	DIBBS
5305-01-237-9371	2008-06-178	193	DIBBS
5305-01-237-9371	2008-06-172	5	DIBBS

Cross Reference | NSN 5305-01-237-9371

Part Number	Cage Code	Manufacturer
5305-010-0001	04614	TEXTRON SYSTEMS CORPORATION DBA TEXTRON DEFENSE SYSTEMS
YS-21	00141	ROLLER BEARING COMPANY OF AMERICA, INC.

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Related Products | NSN 5305-01-237-9371

5305-01-237-9373, 5305-01-237-9375, 5305-01-237-9377, 5305-01-237-9378, 5305-01-237-9894

Technical Data | NSN 5305-01-237-9371

Characteristic	Specifications
THREAD SERIES DESIGNATOR	UNC
NOMINAL THREAD DIAMETER	0.164 INCHES
THREAD QUANTITY PER INCH	32
THREAD CLASS	2A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.188 INCHES MINIMUM AND 0.280 INCHES MAXIMUM
FASTENER LENGTH	0.250 INCHES MINIMUM AND 0.280 INCHES MAXIMUM
MATERIAL	PLASTIC POLYHEXAMETHYLENE ADIPAMIDE OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-M-20693,COMP A,TY 1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
HEAD STYLE	C49 FLAT CHAMFER
HEAD DIAMETER	0.255 INCHES MINIMUM AND 0.275 INCHES MAXIMUM
HEAD HEIGHT	0.164 INCHES MINIMUM AND 0.174 INCHES MAXIMUM
INTERNAL DRIVE STYLE	D5 HEXAGON
WIDTH ACROSS FLATS	0.125 INCHES MINIMUM AND 0.155 INCHES MAXIMUM
SPECIAL FEATURES	COLOR NATURAL

Restrictions/Controls & Freight Information | NSN 5305-01-237-9371

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	573	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 5305-01-237-9371

Air Force

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	D	DoD INTEGRATED MATERIEL-MANAGED, STOCKED, AND ISSUED # Issue, transfer, or shipment is not subject to specialized controls other than those imposed by the Integrated Materiel Manager/Service supply policy. 1. The item is centrally managed, stocked, and issued. 2. Requisitions must contain the fund citation required to acquire the item. Requisitions will be submitted in accordance with Integrated Materiel Manager(IMM)/Service requisitioning procedures.
Controlled Item Code	U	UNCLASSIFIED
Shelf Life Code	0	Nondeteriorative
Purchasing	QTY UOM	Q EA : Each