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S265 — SLEEVE,EXPANSION MANDREL

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

S265: SLEEVE,EXPANSION MANDREL.

The SLEEVE,EXPANSION MANDREL is a the manufacturer industrial component. Key specifications include special_features: USED ON A K8 AND J-K8 HONING UNIT. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-222-7239, 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
S265
NSN: 5310-00-222-7239
NIINs: 002227239, 004710164, 013538114
FSC: 5310 — Nuts and Washers
CAGE: 15434 — CUMMINS INC. (USA)
SPECIFICATIONS
special_featuresUSED ON A K8 AND J-K8 HONING UNIT
NSN5310-00-222-7239
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: S265 · 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: 0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
•
BEARING SURFACE FINISH: 63.0 MICROINCHES
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THREAD SERIES: UNF
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MATERIAL DOCUMENT AND CLASSIFICATION: AISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
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NUT COUNTERBORE DEPTH: 0.030 INCHES MINIMUM AND 0.060 INCHES MAXIMUM NUT IN
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THREAD DIRECTION: RIGHT-HAND
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NOMINAL THREAD SIZE: 0.375 INCHES IN
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NUT HEIGHT: 0.520 INCHES MINIMUM AND 0.540 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
BEARING SURFACE FINISH63.0 MICROINCHES
THREAD SERIESUNF
MATERIAL DOCUMENT AND CLASSIFICATIONAISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NUT COUNTERBORE DEPTH0.030 INCHES MINIMUM AND 0.060 INCHES MAXIMUM NUT IN
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.375 INCHES IN
NUT HEIGHT0.520 INCHES MINIMUM AND 0.540 INCHES MAXIMUM IN
COUNTERSINK ANGLE90.0 DEGREES NOMINAL NUT
NUT STYLEHEXAGON
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is S265?
S265 is a SLEEVE,EXPANSION MANDREL.
What is the NSN for S265?
S265 is cataloged in the U.S. Government catalog under NSN 5310-00-222-7239. 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.