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SIZE25A ✓ 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

CAP-PLUG,PROTECTIVE,DUST AND MOI. Key specifications include material: PLASTIC, length_under_shoulder: 1.000 INCHES NOMINAL IN, open_end_inside_diameter: 2.344 INCHES NOMINAL IN, closed_end_overall_diameter: 2.125 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-290-7243, 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
SIZE25A
NSN: 5340-00-290-7243
FSC: 5340
CAGE: 95760 — PROTECTIVE CLOSURES CO INC (USA)
SPECIFICATIONS
materialPLASTIC
length_under_shoulder1.000 INCHES NOMINAL IN
open_end_inside_diameter2.344 INCHES NOMINAL IN
closed_end_overall_diameter2.125 INCHES NOMINAL IN
NSN5340-00-290-7243
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: SIZE25A 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
•
OPEN END INSIDE DIAMETER: 2.344 INCHES NOMINAL IN
•
MATERIAL: PLASTIC
•
LENGTH UNDER SHOULDER: 1.000 INCHES NOMINAL IN
•
CLOSED END OVERALL DIAMETER: 2.125 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
OPEN END INSIDE DIAMETER2.344 INCHES NOMINAL IN
MATERIALPLASTIC
LENGTH UNDER SHOULDER1.000 INCHES NOMINAL IN
CLOSED END OVERALL DIAMETER2.125 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
W-L-101/31Interchangeable
interchangeable cross-reference
interchangeable
25A120VInterchangeable
interchangeable cross-reference
interchangeable
6240001558651Interchangeable
interchangeable cross-reference
interchangeable
25A-30VInterchangeable
interchangeable cross-reference
interchangeable
25A19IF30VInterchangeable
interchangeable cross-reference
interchangeable
K25-6011Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SIZE25A?
SIZE25A is a CAP-PLUG,PROTECTIVE,DUST AND MOI.
What parts can replace SIZE25A?
There are 20 known substitutes for SIZE25A: W-L-101/31, 25A120V, 6240001558651 and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for SIZE25A?
SIZE25A is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-290-7243. 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