PartsTable
Technical Data Sheet
21118-1 ✓ 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 COUPLING,SHAFT,FLEXIBLE is a the manufacturer industrial component. Key specifications include color: BLACK, width: 3.000 INCHES NOMINAL IN, length: 3.000 INCHES NOMINAL IN, material: PLASTIC ACRYLONITRILE-BUTADIENE-STYRENE (ABS), pattern_type: AMERICAN, edge_cut_type: MILLED TEETH, STANDARD CUT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-223-1707, 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
21118-1
NSN: 5330-01-223-1707
FSC: 5330
CAGE: 81590 — KORRY ELECTRONICS CO (USA)
SPECIFICATIONS
colorBLACK
width3.000 INCHES NOMINAL IN
length3.000 INCHES NOMINAL IN
materialPLASTIC ACRYLONITRILE-BUTADIENE-STYRENE (ABS)
pattern_typeAMERICAN
edge_cut_typeMILLED TEETH, STANDARD CUT
face_cut_typeMILLED TEETH, STANDARD CUT
furnished_itemsMETAL INDEXED CASE
special_featuresHIGH SPEED STEEL; JOBBERS LG; 118 DEG SPLIT POINT; STRAIGHT ROUND SHANK; BLACK FINISH
style_designatorCROSS
attachment_methodCENTER HOLE
overall_thickness1.125 INCHES NOMINAL IN
NSN5330-01-223-1707
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 21118-1 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 4
21118-1Interchangeable
interchangeable cross-reference
interchangeable
P91849Interchangeable
interchangeable cross-reference
interchangeable
21118Interchangeable
interchangeable cross-reference
interchangeable
338428-503Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 21118-1?
21118-1 is a COUPLING,SHAFT,FLEXIBLE.
What parts can replace 21118-1?
There are 4 known substitutes for 21118-1: 21118-1, P91849, 21118 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 21118-1?
21118-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-223-1707. This indicates validated use in U.S. government and defense supply chains.
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