NSN 4730-00-277-6371 AN62894D, AN6289-4D, AN6289D4

Product Details | TUBE FITTING LOCKNUT

4730-00-277-6371 An item with internal machine threads designed to fit the external machine threads of a tube fitting. It has flat faces, one of which has a counterbored recess to accommodate packing, packing or sealing ring(s), gasket(s), and the like. The item, when installed, provides a method of locking and sealing the connection. See also LOCKNUT, PIPE; NUT (1), TUBE COUPLING and NUT (1), PLAIN, HEXAGON.

Part Alternates: AN62894D, AN6289-4D, AN6289D4, AS5179D04, MILF5509, MIL-F-5509, Q37-4, Q374, 477 676, 477676, 58570403, 5857-0403, 752 522, 752522, 9058570403, 905857-0403, 4730-00-277-6371, 00-277-6371, 4730002776371, 002776371

Pipe, Tubing, Hose, and Fittings | Hose, Pipe, Tube, Lubrication, and Railing Fittings

Supply Group (FSG)	NSN Assign.	NIIN	Item Name Code (INC)
47	01 JAN 1961	00-277-6371	17645 ( LOCKNUT, TUBE FITTING )

Drawings & Photos | NSN 4730-00-277-6371

Part Number	Request Date	QTY	Origin
4730-00-277-6371	2024-09-273	3065	DIBBS
4730-00-277-6371	2024-01-11	1142	DIBBS
4730-00-277-6371	2023-01-22	1310	DIBBS
4730-00-277-6371	2021-08-221	5	MY
AN62894D	2021-07-190	50	Hong Kong
4730-00-277-6371	2018-11-309	2591	DIBBS
MILF5509	2018-07-201	6	United States
AN6289D4	2016-11-309	4	US
AN6289D4	2015-10-296	100	United States
AS5179D04	2015-02-55	100	France
AN6289D4	2015-01-29	9	United States
AN6289D4	2015-01-29	9	United States
AN6289D4	2012-11-310	182
4730-00-277-6371	2011-10-278	2889	DIBBS
AS5179D04	2011-07-186	33	Italy
MILF5509	2009-10-301	1	PK
4730-00-277-6371	2009-05-148	10	United States
AN62894D	2009-04-120	200	Italy
AN62894D	2009-04-93	50	Italy
MILF5509	2009-02-55	100	US
4730-00-277-6371	2008-12-354	1979	DIBBS

Cross Reference | NSN 4730-00-277-6371

Part Number	Cage Code	Manufacturer
477 676	77294	PIPER AIRCRAFT INC.
5857-0403	0KDP7	KIDDE-FENWAL INC DBA CHEMTRON KIDDE FIRE SYSTEMS
752 522	77294	PIPER AIRCRAFT INC.
905857-0403	0KDP7	KIDDE-FENWAL INC DBA CHEMTRON KIDDE FIRE SYSTEMS
AN6289-4D	88044	AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE
AN6289-4D	K2861	BAE SYSTEMS OPERATIONS LTD
AN6289D4	00624	EATON CORPORATION DBA AEROSPACE DIV
AN6289D4	06581	ALLAN AIRCRAFT SUPPLY CO, LLC
AN6289D4	14397	FABER ENTERPRISES, INC.
AN6289D4	14597	LITTON SYSTEMS INC SUB OF LITTON INDUSTRIES INC
AN6289D4	14798	DESIGNED METAL CONNECTIONS, INC. DBA PERMASWAGE
AN6289D4	22995	CROWN FITTING CO INC
AN6289D4	71563	COLLINS ENGINEERING CORP
AN6289D4	88044	AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE
AN6289D4	R1120	SATAIR A/S
AS5179D04	81343	SOCIETY OF AUTOMOTIVE ENGINEERS INC
MIL-F-5509	96906	MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS
Q37-4	14170	HUGHES MISSILE SYSTEMS CO SAN DIEGO

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Related Products | NSN 4730-00-277-6371

4730-00-277-6372, 4730-00-277-6373, 4730-00-277-6374, 4730-00-277-6375, 4730-00-277-6376

Technical Data | NSN 4730-00-277-6371

Characteristic	Specifications
THREAD SERIES	UNF
NOMINAL THREAD SIZE	0.438 INCHES
THREAD QUANTITY PER INCH	20
THREAD CLASS	3B
THREAD DIRECTION	RIGHT-HAND
MATERIAL	ALUMINUM ALLOY 2014 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-A-225/4,ALLOY 2014,T6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT	ANODIZE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-A-8625,TYPE 2,CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
NUT STYLE	A391 TUBE FITTING LOCKNUT
NUT HEIGHT	0.281 INCHES NOMINAL
WIDTH ACROSS FLATS	0.688 INCHES NOMINAL
PACKING RECESS DIAMETER	0.608 INCHES NOMINAL
PACKING RECESS DEPTH	0.042 INCHES NOMINAL
NOMINAL TUBE OUTSIDE DIAMETER	0.250 INCHES
SPECIFICATION/STANDARD DATA	88044-AN6289 GOVERNMENT STANDARD
III END ITEM IDENTIFICATION	GRUMMAN A10 AIRCRAFT;BOEING VERTOL CARGO TRANSPORT HELICOPTER,MODEL C-47; F-18 AIRCRAFT

Restrictions/Controls & Freight Information | NSN 4730-00-277-6371

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:	U	Precious metal type is unknown
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	013540	ALUM NUTS
Less than car load rating
Less than truck load rating	Q	70.0
Water commodity Code	576	unknown
Originating Activity Code	XX
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 4730-00-277-6371

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.
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
Price Validation	V	The current standard price has been validated. The item has been analyzed in conjunction with the Zero Overpricing Program and is in the accepted price range. The item was procured under open competition and under the competitive arena the price is considered fair and reasonable. ZOP or Standard price challenges are permissible but must be supported by adequate justification.
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

Category	Code	Description
Stores Account Code	1	Marine Corps Stock Fund Account Item.
Combat Essentiality Code	2	Non-Critical Repair Part. Repair parts or major components whose failure in an end item will not render the end item inoperative or reduce its effectiveness below the minimum acceptable level of efficiency, and which do not fit the definition of Code 3 or 4 items.
Materiel Management Code	C	Construction MaterielDefense Supply Center Columbus (DSCC)
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	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

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	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