NSN 5325-01-278-2656

Part Details | SCREW THREAD INSERT

5325-01-278-2656 A cylindrical item which may have wrenching and/or driving facilities and/or shoulders. It is designed to be inserted in a drilled, tapped or a pretapped hole, or molded or pressed into soft material to reduce the size of a tapped hole; to provide threads; to add strength, and/or to prevent stripping. It is one of the following: (1) a one-piece, flanged or unflanged, internally threaded item which may have external threads, and/or serrations around the periphery of the collar, designed to engage a serrated lock ring which is not included with the item; (2) a one-piece precision coiled wire; (3) a two-piece item consisting of an internally threaded cylinder and a mating externally threaded part; or (4) a one-piece internally threaded item whose outside diameter is tapered and/or knurled and/or with fin(s). The internal thread of the item may have a locking feature. Excludes items having a sleeve on on its under portion which can be clinched or crimped. Excludes BUSHING,MACHINE THREAD; NUT,PLAIN,KNURLED; NUT,PLAIN,ROUND; NUT,PLAIN,CLINCH and NUT,SELF-LOCKING,CLINCH. See also NUT,PLAIN,PLATE

Alternate Parts: 3163893, 5325-01-278-2656, 01-278-2656, 5325012782656, 012782656

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53MAY 03, 198801-278-265611444 ( INSERT, SCREW THREAD )
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 5325-01-278-2656
Part Number Cage Code Manufacturer
316389310001NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT
Technical Data | NSN 5325-01-278-2656
Characteristic Specifications
SPECIAL FEATURESLENGTH IS 0.984 PLUS 0.000 MINUS 0.015. BOTH ENDS ARE 0.188 PLUS 0.000 MINUS 0.002 DIA- BEFORE KNURLING,LENGTH IS 0.310,CHAMFER IS 0.015 X 45DEG,0.110 PLUS OR MINUS 0.005 DIA THRU AND0.138-32 UNC-2BX 0.280 DEEP. COLLAR ISCENTERED WITH 0.198 PLUS 0.000 MINUS 0.004 DIA. AFTER KNURLING,KNURL IS D.P. STRAIGHT. COLLAR LENGTH IS 0.380,SURFACE ROUGHNESS AS ROLLED OR DRAWN. CUT OR MACHINED SURFACES TO HAVE 125. REMOVE BURRS AND SHARP EDGES. IDENTIFY PER MIL STD 130.