5340-00-168-7321, STANDOFF,THREADED,SPACING

5340-00-168-6229 SEAT,HELICAL COMPRESSION SPRING

5340-00-174-8122 STANDOFF,THREADED,SPACING

National Stock Number:
5340-00-168-7321

Federal Supply Class:
5340

National Item Identification Number:
001687321

Description:
STANDOFF,THREADED,SPACING

Detail:
A standoff that must have a threaded end(s) or be internally threaded its full length. For items having external threads on both ends, see STUD (as modified). For items with an outside contour that is the same for the entire length, are flat on top and bottom, having internal threads its full length, and the length does not exceed twice the width across the flats or outside diameter, see NUT (as modified); use maximum dimensions(s) for compliance.

Manufacturer Information:

3828954-1	30205	MERCER PRODUCTS & MANUFACTURING COMPANY
3828954-1	88277	THE BOEING COMPANY

Techincal Specification:

FLANGE WIDTH ACROSS FLATS	0.438 INCHES NOMINAL
FLANGE THICKNESS	0.620 INCHES MINIMUM AND 0.630 INCHES MAXIMUM
LENGTH	1.245 INCHES MINIMUM AND 1.255 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-S-6758 MIL SPEC 1ST MATERIAL RESPONSE OR SAE ASSN STD 2ND MATERIAL RESPONSE STANDOFF
MATERIAL	STEEL COMP 4130 STANDOFF
NOMINAL THREAD SIZE	0.250 INCHES RIGHT EXTERNAL
SPECIAL FEATURES	O.060 IN. DIAHOLE DRILLED THRU TWO WALLS 0.412 IN. FROM STUD END
STYLE DESIGNATOR	FLANGED WITH LEFT INTERNAL THREAD
SURFACE TREATMENT	CADMIUM STANDOFF
THREAD CLASS	3A RIGHT EXTERNAL
THREAD DIRECTION	RIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD)
THREAD DIRECTION	RIGHT-HAND RIGHT EXTERNAL
THREAD LENGTH	0.472 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD)0.375 INCHES NOMINAL RIGHT EXTERNAL
THREAD PITCH DIAMETERS	+0.2103 TO 0.2123 INCHES LEFT INTERNAL (INCLUDES THRU THREAD)
THREAD SERIES DESIGNATOR	UNF RIGHT EXTERNAL
THREAD QUANTITY PER INCH	28 RIGHT EXTERNAL

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