Knurled screws facilitate opening and closing of the PC case. Screwdrivers are not needed anymore. The knurled screws can be simply loosened by hand.
Furthermore slotted and PH screwdriver can also be used. This part is cataloged in the U.S. Government catalog under NSN 5310-00-483-7154, indicating validated use in U.S.
government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.
WHERE IT FITS
77770
NSN:5310-00-483-7154 FSC:5310 — Nuts and Washers CAGE:73030 — HAMILTON SUNDSTRAND CORPORATION DBA COLLINS AEROSPACE (USA)
SPECIFICATIONS
material
STEEL COMP 1015 OVERALL
recess_angle
90.0 DEGREES NOMINAL
hole_diameter
0.281 INCHES NOMINAL IN
recess_diameter
0.377 INCHES NOMINAL IN
outside_diameter
0.500 INCHES NOMINAL IN
special_features
OUTSIDE EDGE CHAMFERRED ON ONE SIDE 0.04 BY 45 DEGREES
style_designator
RECESSED
material_thickness
0.120 INCHES NOMINAL IN
material_document_and_classification
AMS 5050 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN
5310-00-483-7154
COMPONENT DIAGRAM
KEY FEATURES
•
STYLE DESIGNATOR: RECESSED
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5050 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 0.500 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.120 INCHES NOMINAL IN
•
RECESS DIAMETER: 0.377 INCHES NOMINAL IN
•
MATERIAL: STEEL COMP 1015 OVERALL
•
HOLE DIAMETER: 0.281 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
STYLE DESIGNATOR
RECESSED
MATERIAL DOCUMENT AND CLASSIFICATION
AMS 5050 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER
0.500 INCHES NOMINAL IN
MATERIAL THICKNESS
0.120 INCHES NOMINAL IN
RECESS DIAMETER
0.377 INCHES NOMINAL IN
SPECIAL FEATURES
OUTSIDE EDGE CHAMFERRED ON ONE SIDE 0.04 BY 45 DEGREES
MATERIAL
STEEL COMP 1015 OVERALL
HOLE DIAMETER
0.281 INCHES NOMINAL IN
RECESS ANGLE
90.0 DEGREES NOMINAL
OTHER ITEMS IN FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
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FREQUENTLY ASKED QUESTIONS
What is 77770?
77770 is a WASHER,RECESSED manufactured by InLine.
What is the NSN for 77770?
77770 is cataloged in the U.S. Government catalog under NSN 5310-00-483-7154. This indicates validated use in U.S. government and defense supply chains.
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