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Technical Data Sheet
PartsTable / O-RING / 05240
05240 ✓ 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 MIRROR,INSPECTION is a the manufacturer industrial component. Key specifications include unit_type: FIXED LENGTH, mirror_shape: RECTANGULAR, mirror_width: 1.250 INCHES NOMINAL IN, mirror_length: 2.250 INCHES NOMINAL IN, overall_length: 24.000 INCHES NOMINAL IN, special_features: FLEXIBLE SHAFT; ALKALINE BATTERIES NOT INCLUDED. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-163-5610, 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
05240
NSN: 5331-01-163-5610
FSC: 5331 — O-RING
CAGE: 54905 — AMEREX CORPORATION DBA AMEREX CORP (USA)
SPECIFICATIONS
unit_typeFIXED LENGTH
mirror_shapeRECTANGULAR
mirror_width1.250 INCHES NOMINAL IN
mirror_length2.250 INCHES NOMINAL IN
overall_length24.000 INCHES NOMINAL IN
special_featuresFLEXIBLE SHAFT; ALKALINE BATTERIES NOT INCLUDED
features_providedMAGNIFYING MIRROR AND LIGHT
NSN5331-01-163-5610
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 05240 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
GD520D1Interchangeable
interchangeable cross-reference
interchangeable
1392Interchangeable
interchangeable cross-reference
interchangeable
E1811YPC1Interchangeable
interchangeable cross-reference
interchangeable
29616Interchangeable
interchangeable cross-reference
interchangeable
11507852Interchangeable
interchangeable cross-reference
interchangeable
5M1696-001Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 05240?
05240 is a MIRROR,INSPECTION.
What parts can replace 05240?
There are 23 known substitutes for 05240: GD520D1, 1392, E1811YPC1 and 20 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 05240?
05240 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-163-5610. 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