The STANDOFF,THREADED,SPACING is a the manufacturer industrial component. Key specifications include length: 1.375 INCHES NOMINAL IN, material: STEEL COMP 303 OVERALL, thread_length: 0.562 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN, style_designator: LEFT INTERNAL AND RIGHT EXTERNAL THREAD, thread_direction: RIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD), surface_treatment: PASSIVATE OVERALL. This part is cataloged in the U.S.
Government catalog under NSN 5340-01-442-3279, 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
4687-2520-SS-20
NSN:5340-01-442-3279 FSC:5340 — Hardware, Commercial CAGE:55566 — MATTHEW WARREN, INC DBA RAF ELECTRONIC HARDWARE DIV RAF ELECTRONIC HARDWARE, LLC (USA)
SPECIFICATIONS
length
1.375 INCHES NOMINAL IN
material
STEEL COMP 303 OVERALL
thread_length
0.562 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN
style_designator
LEFT INTERNAL AND RIGHT EXTERNAL THREAD
thread_direction
RIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD)
surface_treatment
PASSIVATE OVERALL
width_across_flats
0.500 INCHES NOMINAL IN
nominal_thread_size
0.250 INCHES LEFT INTERNAL (INCLUDES THRU THREAD) IN
cross-sectional_shape
HEXAGON
right_projection_length
0.500 INCHES NOMINAL IN
thread_series_designator
UNIFIED NATIONAL COARSE (UNC) RIGHT EXTERNAL
right_projection_diameter
0.250 INCHES NOMINAL IN
NSN
5340-01-442-3279
COMPONENT DIAGRAM
KEY FEATURES
•
WIDTH ACROSS FLATS: 0.500 INCHES NOMINAL IN
•
LENGTH: 1.375 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-F-14072 E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD LENGTH: 0.562 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN
•
STYLE DESIGNATOR: LEFT INTERNAL AND RIGHT EXTERNAL THREAD
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-763 COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
THREAD DIRECTION: RIGHT-HAND RIGHT EXTERNAL
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS
0.500 INCHES NOMINAL IN
LENGTH
1.375 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION
MIL-F-14072 E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH
0.562 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN
THREAD LENGTH
0.500 INCHES NOMINAL RIGHT EXTERNAL IN
STYLE DESIGNATOR
LEFT INTERNAL AND RIGHT EXTERNAL THREAD
MATERIAL DOCUMENT AND CLASSIFICATION
QQ-S-763 COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTION
RIGHT-HAND RIGHT EXTERNAL
THREAD DIRECTION
RIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD)
NOMINAL THREAD SIZE
0.250 INCHES RIGHT EXTERNAL IN
OTHER ITEMS IN FSC 5340 — Hardware, Commercial
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
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FREQUENTLY ASKED QUESTIONS
What is 4687-2520-SS-20?
4687-2520-SS-20 is a STANDOFF,THREADED,SPACING.
What parts can replace 4687-2520-SS-20?
There is 1 known substitute for 4687-2520-SS-20: 14310-H-SS-1.375-12. Substitute compatibility should be verified for your specific system.
What is the NSN for 4687-2520-SS-20?
4687-2520-SS-20 is cataloged in the U.S. Government catalog under NSN 5340-01-442-3279. This indicates validated use in U.S. government and defense supply chains.
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