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Technical Data Sheet
PartsTable / COMPONENT / 14040-H-A-3.000-31
14040-H-A-3.000-31 ✓ Verified by PartsTable
— · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The 14040-H-A-3.000-31 is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-296-2767, 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
14040-H-A-3.000-31
NSN: 5340-01-296-2767
FSC: 5340
CAGE: 51506 — ACCURATE SCREW MACHINE CORP DIV ACCURATE SCREW MACHINE CORPORATION (USA)
SPECIFICATIONS
Part Number14040-H-A-3.000-31
NSN5340-01-296-2767
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 14040-H-A-3.000-31 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
WIDTH ACROSS FLATS: 0.250 INCHES NOMINAL IN
•
STYLE DESIGNATOR: LEFT INTERNAL AND RIGHT EXTERNAL THREAD
•
CROSS-SECTIONAL SHAPE: HEXAGON
•
LENGTH: 3.000 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
WIDTH ACROSS FLATS0.250 INCHES NOMINAL IN
STYLE DESIGNATORLEFT INTERNAL AND RIGHT EXTERNAL THREAD
CROSS-SECTIONAL SHAPEHEXAGON
LENGTH3.000 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
KE49F402Interchangeable
interchangeable cross-reference
interchangeable
UG23BUInterchangeable
interchangeable cross-reference
interchangeable
UG23UInterchangeable
interchangeable cross-reference
interchangeable
16075DInterchangeable
interchangeable cross-reference
interchangeable
V8263Interchangeable
interchangeable cross-reference
interchangeable
838-337Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 14040-H-A-3.000-31?
14040-H-A-3.000-31 is a 14040-H-A-3.000-31.
What parts can replace 14040-H-A-3.000-31?
There are 19 known substitutes for 14040-H-A-3.000-31: KE49F402, UG23BU, UG23U and 16 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 14040-H-A-3.000-31?
14040-H-A-3.000-31 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-296-2767. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026