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Technical Data Sheet
A180-129CP ✓ 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 BUTADIENE-ACRYLONITRILE CLASS NBR, temp_rating: -65.0 FAHRENHEIT AND 160.0 FAHRENHEIT DEGF, hardness_rating: 70.0 SHORE DUROMETER A NOMINAL, outside_diameter: 1.755 INCHES NOMINAL IN, center_hole_diameter: 1.534 INCHES MINIMUM AND 1.564 INCHES MAXIMUM IN, elongation_percentage: 160 MAXIMUM. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-004-7231, 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
A180-129CP
NSN: 5331-01-004-7231
FSC: 5331 — O-RING
CAGE: 03950 — NAVAL INVENTORY CONTROL POINT MECHANICSBURG (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
temp_rating-65.0 FAHRENHEIT AND 160.0 FAHRENHEIT DEGF
hardness_rating70.0 SHORE DUROMETER A NOMINAL
outside_diameter1.755 INCHES NOMINAL IN
center_hole_diameter1.534 INCHES MINIMUM AND 1.564 INCHES MAXIMUM IN
elongation_percentage160 MAXIMUM
cross-sectional_height0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
criticality_code_justificationZZZY
material_document_and_classificationMIL-P-5516, CL B MIL SPEC SINGLE MATERIAL RESPONSE
reference_number_differentiating_characteristicsCLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D
NSN5331-01-004-7231
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A180-129CP 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
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
OUTSIDE DIAMETER: 1.755 INCHES NOMINAL IN
CENTER HOLE DIAMETER: 1.534 INCHES MINIMUM AND 1.564 INCHES MAXIMUM IN
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-P-5516, CL B MIL SPEC SINGLE MATERIAL RESPONSE
ELONGATION PERCENTAGE: 160 MAXIMUM
TEMP RATING: -65.0 FAHRENHEIT AND 160.0 FAHRENHEIT DEGF
CRITICALITY CODE JUSTIFICATION: ZZZY
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
OUTSIDE DIAMETER1.755 INCHES NOMINAL IN
CENTER HOLE DIAMETER1.534 INCHES MINIMUM AND 1.564 INCHES MAXIMUM IN
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSCLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-P-5516, CL B MIL SPEC SINGLE MATERIAL RESPONSE
ELONGATION PERCENTAGE160 MAXIMUM
TEMP RATING-65.0 FAHRENHEIT AND 160.0 FAHRENHEIT DEGF
CRITICALITY CODE JUSTIFICATIONZZZY
HARDNESS RATING70.0 SHORE DUROMETER A NOMINAL
CROSS-SECTIONAL HEIGHT0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
FWH350Interchangeable
interchangeable cross-reference
interchangeable
UFR50P350Interchangeable
interchangeable cross-reference
interchangeable
A50P350Interchangeable
interchangeable cross-reference
interchangeable
MS28775-129Interchangeable
interchangeable cross-reference
interchangeable
04740643Interchangeable
interchangeable cross-reference
interchangeable
1446-129Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A180-129CP?
A180-129CP is a O-RING.
What parts can replace A180-129CP?
There are 11 known substitutes for A180-129CP: FWH350, UFR50P350, A50P350 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A180-129CP?
A180-129CP is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-004-7231. This indicates validated use in U.S. government and defense supply chains.
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