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Technical Data Sheet

120R1 CLASS 1 SIZE 020MIL-G-1149 — Technical Data Sheet

✓ 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 O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER CHLOROPRENE CLASS CR, temp_rating: -35.0 FAHRENHEIT AND 225.0 FAHRENHEIT DEGF, hardness_rating: 70.0 SHORE DUROMETER A NOMINAL, outside_diameter: 0.989 INCHES MINIMUM AND 1.019 INCHES MAXIMUM IN, center_hole_diameter: 0.858 INCHES MINIMUM AND 0.870 INCHES MAXIMUM IN, cross-sectional_height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 5331-00-869-3087, 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
120R1 CLASS 1 SIZE 020MIL-G-1149
NSN: 5331-00-869-3087
FSC: 5331 — O-RING
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
materialRUBBER CHLOROPRENE CLASS CR
temp_rating-35.0 FAHRENHEIT AND 225.0 FAHRENHEIT DEGF
hardness_rating70.0 SHORE DUROMETER A NOMINAL
outside_diameter0.989 INCHES MINIMUM AND 1.019 INCHES MAXIMUM IN
center_hole_diameter0.858 INCHES MINIMUM AND 0.870 INCHES MAXIMUM IN
cross-sectional_height0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
NSN5331-00-869-3087
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 120R1 CLASS 1 SIZE 020MIL-G-1149 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: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
•
HARDNESS RATING: 70.0 SHORE DUROMETER A NOMINAL
•
OUTSIDE DIAMETER: 0.989 INCHES MINIMUM AND 1.019 INCHES MAXIMUM IN
•
MATERIAL: RUBBER CHLOROPRENE CLASS CR
•
TEMP RATING: -35.0 FAHRENHEIT AND 225.0 FAHRENHEIT DEGF
•
CENTER HOLE DIAMETER: 0.858 INCHES MINIMUM AND 0.870 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
HARDNESS RATING70.0 SHORE DUROMETER A NOMINAL
OUTSIDE DIAMETER0.989 INCHES MINIMUM AND 1.019 INCHES MAXIMUM IN
MATERIALRUBBER CHLOROPRENE CLASS CR
TEMP RATING-35.0 FAHRENHEIT AND 225.0 FAHRENHEIT DEGF
CENTER HOLE DIAMETER0.858 INCHES MINIMUM AND 0.870 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
9155344InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
2-020C147-7InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
11-020InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
028-1118-000InterchangeableGOVERNMENT REGISTRY
Same NIIN cross-reference
interchangeable
2-020 C873-70InterchangeableGOVERNMENT REGISTRY
Same NIIN cross-reference
interchangeable
2-020C147-70InterchangeableGOVERNMENT REGISTRY
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 120R1 CLASS 1 SIZE 020MIL-G-1149?
120R1 CLASS 1 SIZE 020MIL-G-1149 is a O-RING.
What parts can replace 120R1 CLASS 1 SIZE 020MIL-G-1149?
There are 6 known substitutes for 120R1 CLASS 1 SIZE 020MIL-G-1149: 9155344, 2-020C147-7, 11-020 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 120R1 CLASS 1 SIZE 020MIL-G-1149?
120R1 CLASS 1 SIZE 020MIL-G-1149 is cataloged in the Federal Logistics Information System under NSN 5331-00-869-3087. This indicates validated use in U.S. government and defense supply chains.
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