4720-00-009-5260 HOSE ASSEMBLY,NONMETALLIC Index 3020-00-009-5262 PULLEY,GROOVE

National Stock Number:
4730-00-009-5261

Federal Supply Class:
4730

National Item Identification Number:
000095261

Description:
LOCKNUT,TUBE FITTING

Detail:
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.


Manufacturer Information:
AN6289D3200624EATON AEROQUIP LLC
AN6289D3206581ALLAN AIRCRAFT SUPPLY CO., LLC
AN6289D3213899HYDRO-FITTING MANUFACTURING CORPORATION
AN6289D3214397FABER ENTERPRISES, INC.
AN6289D3214798DESIGNED METAL CONNECTIONS INC
AN6289D3222995CROWN FITTING CO INC
MIL-F-550981349MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
AN6289D3288044AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE


Techincal Specification:
THREAD SERIESUN
NOMINAL THREAD SIZE2.500 INCHES
THREAD QUANTITY PER INCH12
THREAD CLASS3B
THREAD DIRECTIONRIGHT-HAND
MATERIALALUMINUM ALLOY OVERALL
SURFACE TREATMENTANODIZE OVERALL
NUT STYLETUBE FITTING LOCKNUT
WIDTH ACROSS FLATS2.813 INCHES NOMINAL
PACKING RECESS DIAMETER2.728 INCHES NOMINAL
PACKING RECESS DEPTH0.054 INCHES NOMINAL
NOMINAL TUBE OUTSIDE DIAMETER2.000 INCHES
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE88044
DEFINITIVE GOVERNMENT SPEC/STD REFERENCEAN6289D32


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