Product Details | BOSS TEE

4730-00-977-3178 A fitting having three connections with the branch connection fixed at 90 degrees (1.5705 radians) to the run. The connections have external or internal machine threads (straight threads other than pipe or hose series), and are designed to facilitate a gasket, preformed packing, washer, or the like, to form a seal at the boss. It may have side inlet(s). It is used as a junction at the intersection of a boss or boss fitting on items such as tanks, housings, valve fittings, and the like. Excludes TEE, TUBE.

Part Alternates: 128HM100701, 128HM10070-1, 4730-00-977-3178, 00-977-3178, 4730009773178, 009773178

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

Supply Group (FSG) NSN Assign. NIIN
47 01 JAN 1962 00-977-3178

Cross Reference | NSN 4730-00-977-3178

Part Number Cage Code Manufacturer
128HM10070-1 26512 NORTHROP GRUMMAN SYSTEMS CORPORATION DIV NORTHROP GRUMMAN AEROSPACE
128HM10070-1 65777 HOWE MACHINE & TOOL CORP.

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Technical Data | NSN 4730-00-977-3178

Characteristic Specifications
MATERIAL ALUMINUM ALLOY OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION QQ-A-225/9 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
CONNECTION TYPE THREADED INTERNAL BOSS ALL ENDS
CONNECTION STYLE B9 GASKET SEAL 1ST END B9 GASKET SEAL 2ND END B75 DOUBLE THREADED SECTION W/GASKET AND LOCKNUT SEALING 3RD END
THREAD SERIES DESIGNATOR UNF 1ST END UN 2ND END UN 3RD END
NOMINAL THREAD SIZE 0.563 INCHES 1ST END 1.062 INCHES 2ND END 1.312 INCHES 3RD END
THREAD QUANTITY PER INCH 12 2ND END 12 3RD END
THREAD CLASS 3B 1ST END 3B 2ND END 3A 3RD END
LEG LENGTH 1.125 INCHES NOMINAL 1ST END 1.312 INCHES NOMINAL 2ND END 2.250 INCHES NOMINAL 3RD END

Restrictions/Controls & Freight Information | NSN 4730-00-977-3178

Category Code Description
Shelf-Life Code:0Nondeteriorative
Hazardous Material Indicator CodeNThere is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Demilitarization Code:ANon-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Controlled Inventory Item Code:UUNCLASSIFIED
Precious Metals Indicator Code:AItem 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:0Represents 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 051400 PIPE FITTINGS ALUMINUM
Less than car load rating
Less than truck load rating P 77.5
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 4730-00-977-3178

Category Code Description
Cognizance Codes9BNavy-owned stocks of DLA material
Naval Inventory Control Point, Mechanicsburg
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDNDepartment of the Navy
Service OrganizationNU.S. Navy
Acquisition Advice CodesJNOT STOCKED, CENTRALLY PROCURED # (NON-STOCKED ITEMS) IMM/Service centrally managed but not stocked item. Procurement will be initiated only after receipt of a requisition.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each