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554889 — RETAINER,MECHANICAL CYLINDER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

554889: RETAINER,MECHANICAL CYLINDER.

The RETAINER,MECHANICAL CYLINDER is a the manufacturer industrial component. Key specifications include end_item_identification: 2420-01-205-8636 TRACTOR WHEELED, general_characteristics_item_description: 3.493 IN. DIA; 1.630 IN.

LG; 3.437-12 UN-2A A. This part is cataloged in the U.S. Government catalog under NSN 5305-00-887-2078, 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
554889
NSN: 5305-00-887-2078
NIINs: 008872078, 013020936
FSC: 5305 — Screws
CAGE: 73030 — HAMILTON SUNDSTRAND CORPORATION DBA COLLINS AEROSPACE (USA)
SPECIFICATIONS
end_item_identification2420-01-205-8636 TRACTOR WHEELED
general_characteristics_item_description3.493 IN. DIA; 1.630 IN. LG; 3.437-12 UN-2A A
NSN5305-00-887-2078
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 554889 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 554889?
554889 is a RETAINER,MECHANICAL CYLINDER.
What is the NSN for 554889?
554889 is cataloged in the U.S. Government catalog under NSN 5305-00-887-2078. This indicates validated use in U.S. government and defense supply chains.
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