NSN 4730-00-800-3554 MS51531, MS51531B4S, 1140548003

Product Details | TUBE COUPLING NUT

4730-00-800-3554 An internally threaded nut which has either an internal seat or shoulder and/or is designed to be used with a ferrule, to mate with the seat of an externally threaded tube fitting to form a leakproof connection. Excludes NUT (1), TUBE COUPLING, REDUCING; and NUT (1), UNION.

Part Alternates: MS51531, MS51531B4S, 1140548003, 114-0548-003, 4070110C, 4BTXSS, 4-BTX-SS, 687268561C, 6872685-61C, 8431417, 4730-00-800-3554, 00-800-3554, 4730008003554, 008003554

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 1962	00-800-3554	03859 ( NUT, TUBE COUPLING )

Drawings & Photos | NSN 4730-00-800-3554

Part Number	Request Date	QTY	Origin
4BTXSS	2024-11-312	4	United States
MS51531B4S	2023-12-338	20	United States
MS51531B4S	2023-10-291	25	United States
MS51531B4S	2023-09-269	20	United States
MS51531B4S	2023-08-222	40	United States
4BTXSS	2023-06-159	3	United States
MS51531B4S	2023-05-145	25	United States
MS51531B4S	2023-04-118	10	United States
MS51531B4S	2023-04-102	37	United States
4730-00-800-3554	2023-03-60	2	GU
MS51531B4S	2023-01-25	2	United States
4730-00-800-3554	2022-10-279	1193	DIBBS
MS51531B4S	2022-08-217	1	United States
MS51531B4S	2022-02-46	5	United States
4730-00-800-3554	2021-11-328	1280	Taiwan
4BTXSS	2021-10-279	50	United States
4730-00-800-3554	2021-07-202	12	US
MS51531B4S	2021-07-202	12	US
4BTXSS	2021-07-190	4	United States
MS51531	2021-02-33	6	United States
4730-00-800-3554	2021-01-27	2	United States
4BTXSS	2020-11-329	2	US
4BTXSS	2019-08-234	20	United States
MS51531B4S	2018-11-317	2	US
4730-00-800-3554	2017-01-08	5320	DIBBS
4730-00-800-3554	2016-03-81	2	United States
4730-00-800-3554	2015-07-182	2379	DIBBS
MS51531B4S	2014-05-125	2	United States
4730-00-800-3554	2014-03-64	731	DIBBS
4BTXSS	2013-12-354	600	US
4BTXSS	2013-12-354	900	US
4730-00-800-3554	2013-07-212	328	DIBBS
4730-00-800-3554	2010-03-64	2	Canada
MS51531B4S	2010-03-62	12	US
4730-00-800-3554	2008-03-81	10	United States
MS51531B4S	2007-09-257	625	US

Cross Reference | NSN 4730-00-800-3554

Part Number	Cage Code	Manufacturer
114-0548-003	94756	BOEING COMPANY, THE DBA BOEING
4-BTX-SS	30780	PARKER-HANNIFIN CORPORATION DBA TUBE FITTINGS DIVISION
4-BTX-SS	98441	PARKER-HANNIFIN CORPORATION DBA STRATOFLEX PRODUCTS DIVISION
4070110C	81343	SOCIETY OF AUTOMOTIVE ENGINEERS INC
4BTXSS	09523	PARKER-HANNIFIN CORPORATION DBA GAS TURBINE FUEL SYSTEMS DIV
4BTXSS	45681	PARKER-HANNIFIN CORPORATION DIV CORPORATE HEADQUARTERS
6872685-61C	73342	ALLISON TRANSMISSION, INC.
8431417	98752	WARNER ROBINS AIR LOGISTICS CENTER
MS51531	96906	MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS
MS51531B4S	96906	MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS

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Related Products | NSN 4730-00-800-3554

4730-00-800-3555, 4730-00-800-3556, 4730-00-800-3557, 4730-00-800-3826, 4730-00-800-4394

Technical Data | NSN 4730-00-800-3554

Characteristic	Specifications
THREAD SERIES	UNF
NOMINAL THREAD SIZE	0.438 INCHES
THREAD QUANTITY PER INCH	20
THREAD CLASS	2B
THREAD DIRECTION	RIGHT-HAND
MATERIAL	STEEL COMP 316 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION	66 FED STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT	PASSIVATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NUT STYLE	A350 TUBE COUPLING
NUT HEIGHT	0.610 INCHES NOMINAL
WIDTH ACROSS FLATS	0.563 INCHES NOMINAL
LENGTH TO SHOULDER	0.532 INCHES NOMINAL
SMALLEST INSIDE DIAMETER	0.305 INCHES NOMINAL
SEAT ANGLE	90.00 DEGREES NOMINAL
FABRICATION METHOD	MACHINED
NOMINAL TUBE OUTSIDE DIAMETER	0.250 INCHES
SPECIFICATION/STANDARD DATA	96906-MS51531 GOVERNMENT STANDARD
MANUFACTURERS CODE	96906
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE	MS51531
MANUFACTURERS CODE	96906
DEFINITIVE GOVERNMENT SPEC/STD REFERENCE	MS51531B4S

Restrictions/Controls & Freight Information | NSN 4730-00-800-3554

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	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	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 4730-00-800-3554

Category	Code	Description
Materiel Category and Inventory Manager	J	Ground Forces Support Materiel (DLA/GSA Items)
Appropriation and Budget Activity	2	Stock Fund Secondary Items
Management Inventory Segment	2	NONREPARABLE ITEMS (Exclusive of Insurance and Provisioning Items). This code will be used to identify items which are not reparable.
Specific Group/Generic Code	D	Surface to Air Missiles
Weapons Systems/End Item or Homogeneous Group	DM	Air-to-Air Stinger (ATAS)
Accounting Requirements Code	X	Expendable item. An item of Army property coded with an ARC of ?X? in the AMDF. Expendable items require no formal accountability after issue from a stock record account. Commercial and fabricated items similar to items coded ?X? in the AMDF are considered expendable items.
Source of Supply	SMS	Defense Logistics Agency Enterprise Business Systems
Agency	DA	Department of the Army
Service Organization	A	U.S. Army
Reparability	Z	This is a nonreparable item. If condemned or economically unserviceable, then dispose at the level authorized replace the item.
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	1 EA : Each

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	1 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	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	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	1 EA : Each

Category	Code	Description
Cognizance Codes	9B	Navy-owned stocks of DLA material Naval Inventory Control Point, Mechanicsburg
Special Material Content	9	Non-Hazardous or Non-Sensitive Item, does not require hazardous or special handling, packaging or precautions
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	1 EA : Each