The STANDOFF,THREADED,SPACING is a the manufacturer industrial component. Key specifications include length: 0.500 INCHES NOMINAL IN, thread_class: 3A LEFT INTERNAL (INCLUDES THRU THREAD) A, thread_length: 0.120 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN, flange_thickness: 0.188 INCHES NOMINAL IN, special_features: COLOR YELLOW, style_designator: FLANGED WITH LEFT INTERNAL THREAD. This part is cataloged in the U.S.
Government catalog under NSN 5340-01-145-8450, 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
1251-7788
NSN:5340-01-145-8450 FSC:5340 — Hardware, Commercial CAGE:28480 — HEWLETT-PACKARD COMPANY DBA HP (USA)
SPECIFICATIONS
length
0.500 INCHES NOMINAL IN
thread_class
3A LEFT INTERNAL (INCLUDES THRU THREAD) A
thread_length
0.120 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN
flange_thickness
0.188 INCHES NOMINAL IN
special_features
COLOR YELLOW
style_designator
FLANGED WITH LEFT INTERNAL THREAD
thread_direction
RIGHT-HAND RIGHT EXTERNAL
surface_treatment
ZINC AND CHROMATE STANDOFF
nominal_thread_size
0.112 INCHES LEFT INTERNAL (INCLUDES THRU THREAD) IN
thread_quantity_per_inch
40 LEFT INTERNAL (INCLUDES THRU THREAD)
thread_series_designator
UNIFIED NATIONAL COARSE (UNC) RIGHT EXTERNAL
flange_width_across_flats
0.187 INCHES NOMINAL IN
NSN
5340-01-145-8450
COMPONENT DIAGRAM
KEY FEATURES
•
FLANGE WIDTH ACROSS FLATS: 0.187 INCHES NOMINAL IN
•
LENGTH: 0.500 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-Z-325 FED SPEC SINGLE TREATMENT RESPONSE STANDOFF
•
FLANGE THICKNESS: 0.188 INCHES NOMINAL IN
•
THREAD LENGTH: 0.312 INCHES NOMINAL RIGHT EXTERNAL IN
•
STYLE DESIGNATOR: FLANGED WITH LEFT INTERNAL THREAD
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A108 ASSN STD ALL MATERIAL RESPONSES STANDOFF
TECHNICAL CHARACTERISTICS
FLANGE WIDTH ACROSS FLATS
0.187 INCHES NOMINAL IN
LENGTH
0.500 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION
QQ-Z-325 FED SPEC SINGLE TREATMENT RESPONSE STANDOFF
FLANGE THICKNESS
0.188 INCHES NOMINAL IN
THREAD LENGTH
0.312 INCHES NOMINAL RIGHT EXTERNAL IN
THREAD LENGTH
0.120 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN
STYLE DESIGNATOR
FLANGED WITH LEFT INTERNAL THREAD
MATERIAL DOCUMENT AND CLASSIFICATION
ASTM A108 ASSN STD ALL MATERIAL RESPONSES STANDOFF
THREAD DIRECTION
RIGHT-HAND RIGHT EXTERNAL
THREAD DIRECTION
RIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD)
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 1251-7788?
1251-7788 is a STANDOFF,THREADED,SPACING.
What parts can replace 1251-7788?
There is 1 known substitute for 1251-7788: 205818-2. Substitute compatibility should be verified for your specific system.
What is the NSN for 1251-7788?
1251-7788 is cataloged in the U.S. Government catalog under NSN 5340-01-145-8450. This indicates validated use in U.S. government and defense supply chains.
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