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Technical Data Sheet
PartsTable / COMPONENT / 9451827-21
9451827-21 ✓ 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,PROTECTIVE,DUST AND MOISTURE. Key specifications include material: RUBBER CHLOROPRENE CLASS CR, design_type: FRICTION, overall_diameter: 1.380 INCHES NOMINAL IN, inside_diameter_length: 1.620 INCHES NOMINAL IN, round_cap_outside_surface_condition: SMOOTH, tube_outside_diameter_for_which_designed: 0.920 INCHES MINIMUM AND 1.200 INCHES MAXIMUM 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 5340-01-273-5218, 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
9451827-21
NSN: 5340-01-273-5218
FSC: 5340
CAGE: 98747 — OGDEN AIR LOGISTICS CENTER (USA)
SPECIFICATIONS
materialRUBBER CHLOROPRENE CLASS CR
design_typeFRICTION
overall_diameter1.380 INCHES NOMINAL IN
inside_diameter_length1.620 INCHES NOMINAL IN
round_cap_outside_surface_conditionSMOOTH
tube_outside_diameter_for_which_designed0.920 INCHES MINIMUM AND 1.200 INCHES MAXIMUM IN
NSN5340-01-273-5218
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 9451827-21 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
•
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED: 0.920 INCHES MINIMUM AND 1.200 INCHES MAXIMUM IN
•
ROUND CAP OUTSIDE SURFACE CONDITION: SMOOTH
•
MATERIAL: RUBBER CHLOROPRENE CLASS CR
•
INSIDE DIAMETER LENGTH: 1.620 INCHES NOMINAL IN
•
OVERALL DIAMETER: 1.380 INCHES NOMINAL IN
•
DESIGN TYPE: FRICTION
TECHNICAL CHARACTERISTICS (FLIS)
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED0.920 INCHES MINIMUM AND 1.200 INCHES MAXIMUM IN
ROUND CAP OUTSIDE SURFACE CONDITIONSMOOTH
MATERIALRUBBER CHLOROPRENE CLASS CR
INSIDE DIAMETER LENGTH1.620 INCHES NOMINAL IN
OVERALL DIAMETER1.380 INCHES NOMINAL IN
DESIGN TYPEFRICTION
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
3500-23Interchangeable
interchangeable cross-reference
interchangeable
12354499-09Interchangeable
interchangeable cross-reference
interchangeable
6166852-1Interchangeable
interchangeable cross-reference
interchangeable
52-001Interchangeable
interchangeable cross-reference
interchangeable
TS57698Interchangeable
interchangeable cross-reference
interchangeable
667-154-09Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 9451827-21?
9451827-21 is a CAP,PROTECTIVE,DUST AND MOISTURE.
What parts can replace 9451827-21?
There are 6 known substitutes for 9451827-21: 3500-23, 12354499-09, 6166852-1 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 9451827-21?
9451827-21 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-273-5218. 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