NSN 5330-01-238-1638 MS28775011, MS28775-011, 2-011 N304-75

Product Details | PREFORMED PACKING

5330-01-238-1638 A circular shaped item with an aperture manufactured to predetermined dimensions and designed for use as a seal in stuffing boxes, packing nuts, and the like. It may be (1) any nonmetallic molded or formed ring (except solid (without joint) rings having a square or rectangular cross section); or (2) any shredded metal or metal foil type metallic or semimetallic rings. Excludes felt items but includes multimaterial items in which one of the materials is felt. For solid (without joints) nonmetallic items with a square or rectangular cross section, see WASHER (as modified) and GASKET. For rubber items specifically designed for weather-proofing doors, windows, chests, and the like see SEAL, NONMETALLIC ANGLE; SEAL, NONMETALLIC CHANNEL; and SEAL, NONMETALLIC, SPECIAL SHAPED SECTION. For circular (with aperature) nonmetallic items with a solid round cross-section see O-RING. Excludes CUP, COMPRESSION; GASKET; WASHER (as modified); and FELT, MECHANICAL, PREFORMED.

Part Alternates: MS28775011, MS28775-011, 2-011 N304-75, 2011N30475, 262190619PC20, 2621-906-19PC20, 5330-01-238-1638, 01-238-1638, 5330012381638, 012381638

Hardware and Abrasives | Packing and Gasket Materials

Supply Group (FSG)	NSN Assign.	NIIN	Item Name Code (INC)
53	12 AUG 1986	01-238-1638	04521 ( PACKING, PREFORMED )

Drawings & Photos | NSN 5330-01-238-1638

Part Number	Request Date	QTY	Origin
MS28775011	2025-11-323	80	US
MS28775011	2025-11-309	8	United States
MS28775011	2024-10-291	2	Japan
MS28775011	2024-03-82	2	PK
MS28775011	2024-02-37	5	US
MS28775011	2023-08-219	5	us
MS28775011	2023-03-81	20	France
MS28775011	2022-03-73	500	United States
MS28775011	2022-01-21	20	Croatia
MS28775011	2021-11-309	14	United States
MS28775011	2021-11-309	70	United States
5330-01-238-1638	2020-10-275	70	TR
MS28775011	2019-04-116	130	Canada
MS28775011	2018-04-115	1	ID
MS28775-011	2018-03-71	2
MS28775011	2017-12-363	20	us
MS28775-011	2017-06-171	4	United States
MS28775-011	2017-06-171	4	United States
MS28775011	2017-05-129	6	United States
MS28775011	2016-10-298	300	US
MS28775011	2016-04-99	113	United States
MS28775011	2015-12-362	100	United States
MS28775011	2015-11-334	40	Malaysia
5330-01-238-1638	2015-05-127	3	United States
MS28775011	2014-08-230	1	United States
MS28775011	2014-07-190	2	IN
MS28775011	2014-07-182	2	IN
5330-01-238-1638	2014-03-85	307	US
MS28775011	2014-02-33	1000	IN
MS28775011	2014-01-10	500	Malaysia
MS28775011	2013-12-338	10	US
5330-01-238-1638	2013-06-180	100	Philippines
MS28775011	2013-03-74	5	United States
MS28775011	2013-03-71	5	United States
MS28775-011	2012-11-310	50
MS28775011	2012-08-216	150	United States
MS28775-011	2012-02-40	40	TR
MS28775011	2011-11-332	656	India
5330-01-238-1638	2011-10-297	45	Indonesia
5330-01-238-1638	2011-09-244	2	CO
MS28775011	2011-07-205	3	India
MS28775011	2011-05-130	4	CA
MS28775011	2011-04-108	50	us
5330-01-238-1638	2010-12-350	2	CN
5330-01-238-1638	2010-10-299	130	United States
MS28775011	2010-04-95	100	US
5330-01-238-1638	2010-03-81	25	Malaysia
5330-01-238-1638	2009-07-195	10	United States
MS28775011	2009-06-167	30	Italy
5330-01-238-1638	2009-04-120	225	US
MS28775011	2008-11-326	160	United States
MS28775011	2008-09-249	25	United States
MS28775011	2008-03-65	6	US

Cross Reference | NSN 5330-01-238-1638

Part Number	Cage Code	Manufacturer
2-011 N304-75	02697	PARKER-HANNIFIN CORPORATION DBA O'RING DIVISION OF PARKER
2621-906-19PC20	96169	ELECTRIC BOAT CORPORATION
MS28775-011	43689	HUNTINGTON INGALLS INCORPORATED DIV NEWPORT NEWS
MS28775-011	81343	SOCIETY OF AUTOMOTIVE ENGINEERS INC

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Related Products | NSN 5330-01-238-1638

5330-01-238-1644, 5330-01-238-1645, 5330-01-238-1646, 5330-01-238-2035, 5330-01-238-2179

Technical Data | NSN 5330-01-238-1638

Characteristic	Specifications
MATERIAL	RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
CROSS-SECTIONAL SHAPE STYLE	D1 O-RING
CROSS-SECTIONAL HEIGHT	0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM
CENTER HOLE DIAMETER	0.296 INCHES MINIMUM AND 0.306 INCHES MAXIMUM
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS	MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
CRITICALITY CODE JUSTIFICATION	ZZZY
MANUFACTURERS CODE	81343
DESIGN CONTROL REFERENCE	MS28775-011

Restrictions/Controls & Freight Information | NSN 5330-01-238-1638

Restrictions
Freight

Category	Code	Description
Shelf-Life Code:	S	60 months
Hazardous Material Indicator Code	P	There is no information in the HMIS; however, the NSN is in an FSC in Table II of Federal Standard 313 and an MSDS may be required by the user. The requirement for an MSDS is dependent on a hazard determination of the supplier or the intended end use of the product
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:	Y	The item does not have a nuclear hardened feature but does have other critical feature(s) 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	148520	PACKING RUBR/GUM COMPOUND O/T FOAM
Less than car load rating	Q	70
Less than truck load rating	Q	70.0
Water commodity Code	596	unknown
Originating Activity Code	HX	Navy ICP Mechanicsburg, PA 17055-0788
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 5330-01-238-1638

Navy

Category	Code	Description
Cognizance Codes	1H	Consumable material assigned to NAVICP MECH for inventory management Naval Inventory Control Point, Mechanicsburg
Special Material ID	X3	Nuclear Reactor Plant (NRP) material under the technical cognizance of the NAVSEA 08 special designed, manufactured and/or treated for use in a NRP or controls thereof. This category includes all other NRP items which are not coded X2 or X4.
Issue Repair, or Requisition	BL	Submit/refer requisitions to NAVICP MECH. Centralized control for issue of repair parts for specific programs/equipments.
Source of Supply	N35	Naval Inventory Control Point Mechanicsburg, PA 17055-0788
Agency	DN	Department of the Navy
Service Organization	N	U.S. Navy
Reparability	M	Medium Demand Velocity Items (consumables)
Acquisition Advice Codes	V	TERMINAL ITEM # Identifies items in stock, but future procurement is not authorized. Requisitions may continue to be submitted until stocks are exhausted. Preferred item National Stock Number is normally provided by application of the phrase: When Exhausted Use (NSN). Requisitions will be submitted in accordance with IMM/Service requisitioning procedures as applicable.
Controlled Item Code	U	UNCLASSIFIED
Shelf Life Code	S	60 months
Purchasing	QTY UOM	1 EA : Each