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Technical Data Sheet
PartsTable / COMPONENT / 8B7556
8B7556 ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The ADAPTER,MECHANICAL PULLER is a the manufacturer industrial component. Key specifications include overall_length: 2.250 INCHES NOMINAL IN, male_end_length: 1.000 INCHES NOMINAL IN, style_designator: MALE TO FEMALE, female_end_length: 1.250 INCHES NOMINAL IN, male_end_thread_class: 2A A, female_end_thread_class: 2B. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5120-00-316-9172, 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
8B7556
NSN: 5120-00-316-9172
FSC: 5120
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
overall_length2.250 INCHES NOMINAL IN
male_end_length1.000 INCHES NOMINAL IN
style_designatorMALE TO FEMALE
female_end_length1.250 INCHES NOMINAL IN
male_end_thread_class2A A
female_end_thread_class2B
male_end_thread_size_and_series/type_designator0.625-11 UNIFIED NATIONAL COARSE (UNC)
female_end_thread_size_and_series/type_designator0.625-18 UNF
NSN5120-00-316-9172
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available ADAPTER,MECHANICAL PULLER TITLE COMPONENT PN 8B7556 MFR ADAPTER,MECHANICAL PUL
KEY FEATURES
•
FEMALE END THREAD SIZE AND SERIES/TYPE DESIGNATOR: 0.625-18 UNF
•
MALE END THREAD SIZE AND SERIES/TYPE DESIGNATOR: 0.625-11 UNIFIED NATIONAL COARSE (UNC)
•
FEMALE END THREAD CLASS: 2B
•
FEMALE END LENGTH: 1.250 INCHES NOMINAL IN
•
MALE END THREAD CLASS: 2A A
•
MALE END LENGTH: 1.000 INCHES NOMINAL IN
•
STYLE DESIGNATOR: MALE TO FEMALE
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL LENGTH2.250 INCHES NOMINAL IN
FEMALE END THREAD SIZE AND SERIES/TYPE DESIGNATOR0.625-18 UNF
MALE END THREAD SIZE AND SERIES/TYPE DESIGNATOR0.625-11 UNIFIED NATIONAL COARSE (UNC)
FEMALE END THREAD CLASS2B
FEMALE END LENGTH1.250 INCHES NOMINAL IN
MALE END THREAD CLASS2A A
MALE END LENGTH1.000 INCHES NOMINAL IN
STYLE DESIGNATORMALE TO FEMALE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
9MInterchangeable
interchangeable cross-reference
interchangeable
PD5120-00-316-9170Interchangeable
interchangeable cross-reference
interchangeable
8000Interchangeable
interchangeable cross-reference
interchangeable
GGG-P-781Interchangeable
interchangeable cross-reference
interchangeable
GGG-P-781 TY13CL1STASZ2Interchangeable
interchangeable cross-reference
interchangeable
11634730-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 8B7556?
8B7556 is a ADAPTER,MECHANICAL PULLER.
What parts can replace 8B7556?
There are 15 known substitutes for 8B7556: 9M, PD5120-00-316-9170, 8000 and 12 more. Substitute compatibility should be verified for your specific system.
Is 8B7556 still available?
8B7556 is currently cancelled.
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Last verified: July 2026