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Technical Data Sheet
PartsTable / MRO / 155-7654
155-7654 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
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 BLOCK ADJUSTMENT is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYESTER, head_style: PAN, head_height: 0.087 INCHES MINIMUM AND 0.097 INCHES MAXIMUM IN, thread_class: 2A A, head_diameter: 0.256 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN, overall_width: 6.750 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5855-00-446-5921, 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
MRO→ MRO_GENERAL→ 155-7654
NSN: 5855-00-446-5921
FSC: 5855
CAGE: 80662 — POLAN INDUSTRIES (USA)
SPECIFICATIONS
materialPLASTIC POLYESTER
head_stylePAN
head_height0.087 INCHES MINIMUM AND 0.097 INCHES MAXIMUM IN
thread_class2A A
head_diameter0.256 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
overall_width6.750 INCHES NOMINAL IN
thread_length0.938 INCHES MINIMUM AND 1.000 INCHES MAXIMUM IN
overall_height4.000 INCHES NOMINAL IN
overall_length1.583 FEET NOMINAL FT
screw_materialSTEEL COMP 1010 OR STEEL COMP 1011 OR STEEL COMP 1013
fastener_length1.000 INCHES NOMINAL IN
thread_directionRIGHT-HAND
NSN5855-00-446-5921
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available BLOCK ADJUSTMENT TITLE COMPONENT PN 155-7654 MFR BLOCK ADJUSTMENT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
00154-0647Interchangeable
interchangeable cross-reference
interchangeable
19050Interchangeable
interchangeable cross-reference
interchangeable
5620-005Interchangeable
interchangeable cross-reference
interchangeable
756-5476Interchangeable
interchangeable cross-reference
interchangeable
25933Interchangeable
interchangeable cross-reference
interchangeable
123AV45009-65Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 155-7654?
155-7654 is a BLOCK ADJUSTMENT. It is classified as a MRO (MRO_GENERAL).
What parts can replace 155-7654?
There are 13 known substitutes for 155-7654: 00154-0647, 19050, 5620-005 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 155-7654?
155-7654 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5855-00-446-5921. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026