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270AS138 — BEARING,PUMP CYLINDER

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

270AS138: BEARING,PUMP CYLINDER.

The BEARING,PUMP CYLINDER is a the manufacturer industrial component. Key specifications include end_item_identification: AIRCRAFT MODEL F4, general_characteristics_item_description: STEEL,1.750 IN. O/A DIA,1.750 IN.

LG IN. This part is cataloged in the U.S. Government catalog under NSN 3110-01-065-2746, 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
270AS138
NSN: 3110-01-065-2746
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 30003 — NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
end_item_identificationAIRCRAFT MODEL F4
general_characteristics_item_descriptionSTEEL,1.750 IN. O/A DIA,1.750 IN. LG IN
NSN3110-01-065-2746
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 270AS138 · OEM ⚠ VERIFY BEFORE ORDERING Cup and cone sold separately — verify you are ordering BOTH parts or the correct component. Always replace cup and cone together — mismatched wear = premature failure ✓ BROKER TIP Taper angle determines axial load capacity. Steeper angle = higher axial load rating. Timken series numbers indicate dimensions — cross-reference carefully PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: STEEL,1.750 IN. O/A DIA,1.750 IN. LG IN
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTIONSTEEL,1.750 IN. O/A DIA,1.750 IN. LG IN
END ITEM IDENTIFICATIONAIRCRAFT MODEL F4
OTHER ITEMS IN FSC 3110 — Bearings, Antifriction, Unmounted
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3110-00-001-1937 3110-00-001-1938 3110-00-001-4661 3110-00-001-4662 3110-00-001-4689 3110-00-001-4722
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 270AS138?
270AS138 is a BEARING,PUMP CYLINDER.
What is the NSN for 270AS138?
270AS138 is cataloged in the U.S. Government catalog under NSN 3110-01-065-2746. 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.