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44949 ✓ Verified by PartsTable
Lindy · 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 SEAL,WAVEGUIDE is a Lindy industrial component. Key specifications include material: PLASTIC, overall_height: 0.438 INCHES NOMINAL IN, overall_length: 9.150 INCHES NOMINAL IN, flange_diameter: 1.250 INCHES NOMINAL IN, flange_thickness: 0.062 INCHES NOMINAL IN, style_designator: PARALLEL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-939-1288, 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
44949
NSN: 5340-00-939-1288
FSC: 5340
CAGE: 45320 — PACCAR GOVERNMENT GROUP CO YARROW BAY OFFICE PK (USA)
SPECIFICATIONS
materialPLASTIC
overall_height0.438 INCHES NOMINAL IN
overall_length9.150 INCHES NOMINAL IN
flange_diameter1.250 INCHES NOMINAL IN
flange_thickness0.062 INCHES NOMINAL IN
style_designatorPARALLEL
body_inside_diameter0.750 INCHES NOMINAL IN
fsc_application_dataCLUTCH ASSEMBLIES
body_outside_diameter1.000 INCHES NOMINAL IN
casehardening_indicatorNOT CASEHARDENED
stem_actuating_end_typeTHREADED EXTERNALLY
largest_outside_diameter0.750 INCHES NOMINAL IN
NSN5340-00-939-1288
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 44949 MFR: Lindy ⚠ 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
•
FLANGE DIAMETER: 1.250 INCHES NOMINAL IN
•
OUTSIDE CHAMFER ANGLE IN DEG: 90.0
•
FSC APPLICATION DATA: CLUTCH ASSEMBLIES
•
STYLE DESIGNATOR: PARALLEL
•
MATERIAL: PLASTIC
•
FLANGE THICKNESS: 0.062 INCHES NOMINAL IN
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
BODY OUTSIDE DIAMETER: 1.000 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
FLANGE DIAMETER1.250 INCHES NOMINAL IN
OUTSIDE CHAMFER ANGLE IN DEG90.0
FSC APPLICATION DATACLUTCH ASSEMBLIES
STYLE DESIGNATORPARALLEL
MATERIALPLASTIC
FLANGE THICKNESS0.062 INCHES NOMINAL IN
CASEHARDENING INDICATORNOT CASEHARDENED
BODY OUTSIDE DIAMETER1.000 INCHES NOMINAL IN
OVERALL HEIGHT0.438 INCHES NOMINAL IN
BODY INSIDE DIAMETER0.750 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 2
44949Interchangeable
interchangeable cross-reference
interchangeable
R-90-0Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 44949?
44949 is a SEAL,WAVEGUIDE manufactured by Lindy.
What parts can replace 44949?
There are 2 known substitutes for 44949: 44949, R-90-0. Substitute compatibility should be verified for your specific system.
What is the NSN for 44949?
44949 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-939-1288. 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