4820-01-493-8203 RETAINER,DISK,VALVE Index 4820-01-493-8205 STEM,FLUID VALVE

National Stock Number:
5325-01-493-8204

Federal Supply Class:
5325

National Item Identification Number:
014938204

Description:
INSERT,SCREW THREAD

Detail:
A cylindrical item which may have wrenching and/or driving facilities and/or shoulders. It is designed to be inserted in a drilled 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 its underportion 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.


Manufacturer Information:
23056964 PLUS 0.00363005ROLLS-ROYCE CORPORATION


Techincal Specification:
FLANGE DIAMETER1.562 INCHES NOMINAL
FLANGE THICKNESS0.094 INCHES NOMINAL
LENGTH0.625 INCHES NOMINAL
MATERIALSTEEL COMP 630 OVERALL
NOMINAL THREAD SIZE1.250 INCHES
STYLE DESIGNATORFLANGE
THREAD CLASS3A
THREAD PITCH DIAMETERS+1.2169 TO 1.2199 INCHES
THREAD SERIES DESIGNATORUNS
THREAD QUANTITY PER INCH18


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