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Technical Data Sheet
121166-7 ✓ 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 SEAL,NONMETALLIC STRIP is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC OVERALL, construction: ONE-PIECE, overall_length: 8.560 INCHES NOMINAL IN, style_designator: STRIP, cross-sectional_width: 1.000 INCHES NOMINAL IN, cross-sectional_height: 0.062 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 5330-01-477-8595, 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
121166-7
NSN: 5330-01-477-8595
FSC: 5330
CAGE: 82340 — L3HARRIS TECHNOLOGIES, INC. DIV SPACE AND AIRBORNE SYSTEMS (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC OVERALL
constructionONE-PIECE
overall_length8.560 INCHES NOMINAL IN
special_featuresHAS 2 HOLES;0.213 +.005/-.001 THUR;HAS 2 OUTSIDE ROUNDED CORNERS WITH RADIUS OF .50 IN;ONE OUTSIDE CORNER CHAMFER AT 45 DEG IN
style_designatorSTRIP
cross-sectional_width1.000 INCHES NOMINAL IN
cross-sectional_height0.062 INCHES NOMINAL IN
cross-sectional_shape_styleRECTANGULAR
material_document_and_classificationMIL-R-6855,CLASS 2,TY A,GR 40;0.062 THK MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5330-01-477-8595
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 121166-7 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
CROSS-SECTIONAL HEIGHT: 0.062 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-R-6855,CLASS 2,TY A,GR 40;0.062 THK MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
STYLE DESIGNATOR: STRIP
MATERIAL: RUBBER SYNTHETIC OVERALL
CROSS-SECTIONAL WIDTH: 1.000 INCHES NOMINAL IN
CONSTRUCTION: ONE-PIECE
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL HEIGHT0.062 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-6855,CLASS 2,TY A,GR 40;0.062 THK MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
STYLE DESIGNATORSTRIP
MATERIALRUBBER SYNTHETIC OVERALL
SPECIAL FEATURESHAS 2 HOLES;0.213 +.005/-.001 THUR;HAS 2 OUTSIDE ROUNDED CORNERS WITH RADIUS OF .50 IN;ONE OUTSIDE CORNER CHAMFER AT 45 DEG IN
CROSS-SECTIONAL WIDTH1.000 INCHES NOMINAL IN
CONSTRUCTIONONE-PIECE
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
OVERALL LENGTH8.560 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
XH7230Interchangeable
interchangeable cross-reference
interchangeable
6887Interchangeable
interchangeable cross-reference
interchangeable
121166Interchangeable
interchangeable cross-reference
interchangeable
FFT-1Interchangeable
interchangeable cross-reference
interchangeable
AS50852Interchangeable
interchangeable cross-reference
interchangeable
P91499Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 121166-7?
121166-7 is a SEAL,NONMETALLIC STRIP.
What parts can replace 121166-7?
There are 8 known substitutes for 121166-7: XH7230, 6887, 121166 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 121166-7?
121166-7 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-477-8595. This indicates validated use in U.S. government and defense supply chains.
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