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PartsTable / COMPONENT / AA76-140M1
AA76-140M1 ✓ 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

PLUG,PROTECTIVE,DUST AND MOISTUR. Key specifications include material: PLASTIC, drive_type: SERRATED OR SCREW SLOT, design_type: THREADED, thread_class: 3A A, overall_diameter: 1.063 INCHES NOMINAL IN, features_provided: SHOULDER. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-497-4487, 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
AA76-140M1
NSN: 5340-00-497-4487
FSC: 5340
CAGE: 28298 — SMITH AND SMITH AIRCRAFT CO (USA)
SPECIFICATIONS
materialPLASTIC
drive_typeSERRATED OR SCREW SLOT
design_typeTHREADED
thread_class3A A
overall_diameter1.063 INCHES NOMINAL IN
features_providedSHOULDER
thread_size_and_series/type_designator7/8-14 UNF
NSN5340-00-497-4487
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: AA76-140M1 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
•
DRIVE TYPE: SERRATED OR SCREW SLOT
•
MATERIAL: PLASTIC
•
THREAD CLASS: 3A A
•
FEATURES PROVIDED: SHOULDER
•
DESIGN TYPE: THREADED
•
THREAD SIZE AND SERIES/TYPE DESIGNATOR: 7/8-14 UNF
•
OVERALL DIAMETER: 1.063 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
DRIVE TYPESERRATED OR SCREW SLOT
MATERIALPLASTIC
THREAD CLASS3A A
FEATURES PROVIDEDSHOULDER
DESIGN TYPETHREADED
THREAD SIZE AND SERIES/TYPE DESIGNATOR7/8-14 UNF
OVERALL DIAMETER1.063 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
P344Upgraded Successor
successor cross-reference
successor
E226 REV K PC33Upgraded Successor
successor cross-reference
successor
P-H-31Interchangeable
interchangeable cross-reference
interchangeable
35013Interchangeable
interchangeable cross-reference
interchangeable
HAND CLEANERInterchangeable
interchangeable cross-reference
interchangeable
50MS393Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AA76-140M1?
AA76-140M1 is a PLUG,PROTECTIVE,DUST AND MOISTUR.
What parts can replace AA76-140M1?
There are 17 known substitutes for AA76-140M1: P344, E226 REV K PC33, P-H-31 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AA76-140M1?
AA76-140M1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-497-4487. 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