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		                        | National Stock Number:
 4730-00-839-1387
 
 Federal Supply Class:
 4730
 
 National Item Identification Number:
 008391387
 
 Description:
 NIPPLE,TUBE
 
 Detail:
 A straight, one-piece fitting used to join a tube or tube fitting to another tube or tube fitting. It may have any type externally threaded tube connections of the same size on both ends and is usually shaped externally at the center to accommodate a wrench. It may include nuts, sleeves, and/or grommets.
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 Manufacturer Information:
 
 | 7M43-4C | 76301 | THE BOEING COMPANY |  | 7M43-4J | 76301 | THE BOEING COMPANY | 
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 Techincal Specification:
 
 | CONNECTION STYLE | FLARED (TUBE) ALL ENDS |  | CONNECTION TYPE | THREADED EXTERNAL TUBE CENTER BULKHEAD |  | CONNECTION TYPE | THREADED EXTERNAL TUBE ALL ENDS |  | MATERIAL DOCUMENT AND CLASSIFICATION | FED STD 66 FED STD ALL MATERIAL RESPONSES OVERALL |  | MATERIAL | STEEL COMP 302  AND STEEL COMP 303  AND STEEL COMP 304  AND STEEL COMP 316  AND STEEL COMP 321 OVERALL |  | NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED | 0.250 INCHES ALL ENDS |  | NOMINAL OVERALL LENGTH | 2.719 INCHES |  | NOMINAL THREAD SIZE | 0.438 INCHES ALL ENDS |  | NOMINAL THREAD SIZE | 0.438 INCHES CENTER BULKHEAD |  | SEAT ANGLE | 37.0 DEGREES ALL ENDS |  | STYLE DESIGNATOR | FLARED W/ BULKHEAD THREAD |  | SURFACE TREATMENT | PASSIVATE INSIDE |  | SURFACE TREATMENT | PASSIVATE OUTSIDE |  | THREAD CLASS | 3A ALL ENDS |  | THREAD CLASS | 3A CENTER BULKHEAD |  | THREAD SERIES DESIGNATOR | UNF ALL ENDS |  | THREAD SERIES DESIGNATOR | UNF CENTER BULKHEAD | 
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