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25866 — PUMP UNIT,CENTRIFUGAL

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

25866: PUMP UNIT,CENTRIFUGAL.

The PUMP UNIT,CENTRIFUGAL is a the manufacturer industrial component. Key specifications include material: ALUMINUM OVERALL, corner_shape: SQUARE ALL CORNERS, overall_length: 0.2000 INCHES NOMINAL IN, style_designator: SOLID, PLAIN, NO OUTSIDE FLANGES, body_inside_diameter: 0.3480 INCHES NOMINAL IN, body_outside_diameter: 0.3980 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5315-01-121-5240, 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
25866
NSN: 5315-01-121-5240
NIINs: 011215240, 013187920, 014072374, 015798927
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: U2751 — LUCAS CAV (GBR)
SPECIFICATIONS
materialALUMINUM OVERALL
corner_shapeSQUARE ALL CORNERS
overall_length0.2000 INCHES NOMINAL IN
style_designatorSOLID, PLAIN, NO OUTSIDE FLANGES
body_inside_diameter0.3480 INCHES NOMINAL IN
body_outside_diameter0.3980 INCHES NOMINAL IN
material_document_and_classificationMIL-C-9177/5A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL A
NSN5315-01-121-5240
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 25866 · 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
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 25866?
25866 is a PUMP UNIT,CENTRIFUGAL.
What is the NSN for 25866?
25866 is cataloged in the U.S. Government catalog under NSN 5315-01-121-5240. 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.