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218586 — VALVE ASSEMBLY,HYDRAULIC,AIRCRAF

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

218586: VALVE ASSEMBLY,HYDRAULIC,AIRCRAF.

VALVE ASSEMBLY,HYDRAULIC,AIRCRAF. Key specifications include material: STEEL, end_item_identification: MF024B006GB1 HYDRAULIC MOTOR, part_name_assigned_by_controlling_agency: SUBASSY OF VALVE BLOCK SLEEVE. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-021-8586, 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
218586
NSN: 5310-00-021-8586
NIINs: 000218586, 014867164
FSC: 5310 — Nuts and Washers
CAGE: 21450 — ARMY WEAPONS COMMAND ATTN AMSWE-REE-S (USA)
SPECIFICATIONS
materialSTEEL
end_item_identificationMF024B006GB1 HYDRAULIC MOTOR
part_name_assigned_by_controlling_agencySUBASSY OF VALVE BLOCK SLEEVE
NSN5310-00-021-8586
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 218586 · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
WIDTH ACROSS FLATS: 0.4250 INCHES MINIMUM AND 0.4375 INCHES MAXIMUM IN
•
THREAD SERIES: UNF
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.250 INCHES IN
•
NUT HEIGHT: 0.187 INCHES MINIMUM AND 0.219 INCHES MAXIMUM IN
•
NUT STYLE: HEXAGON
•
THREAD CLASS: 2B
•
THREAD QUANTITY PER INCH: 28
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.4250 INCHES MINIMUM AND 0.4375 INCHES MAXIMUM IN
THREAD SERIESUNF
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.250 INCHES IN
NUT HEIGHT0.187 INCHES MINIMUM AND 0.219 INCHES MAXIMUM IN
NUT STYLEHEXAGON
THREAD CLASS2B
THREAD QUANTITY PER INCH28
MATERIALCOPPER ALLOY OVERALL
BEARING SURFACE TYPECHAMFERED OR WASHER FACED
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 218586?
218586 is a VALVE ASSEMBLY,HYDRAULIC,AIRCRAF.
What is the NSN for 218586?
218586 is cataloged in the U.S. Government catalog under NSN 5310-00-021-8586. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.