PartsTable
Technical Data Sheet
MS28775-129 ✓ 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 part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-580-4394, 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
MS28775-129
NSN: 5331-00-580-4394
FSC: 5331 — O-RING
CAGE: A9271 — GORIZIANE GROUP SPA (ITA)
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
NSN5331-00-580-4394
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: MS28775-129 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
CENTER HOLE DIAMETER: 1.539 INCHES MINIMUM AND 1.559 INCHES MAXIMUM IN
CROSS-SECTIONAL HEIGHT: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
OUTSIDE DIAMETER: 1.734 INCHES MINIMUM AND 1.776 INCHES MAXIMUM IN
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
TECHNICAL CHARACTERISTICS (FLIS)
CENTER HOLE DIAMETER1.539 INCHES MINIMUM AND 1.559 INCHES MAXIMUM IN
CROSS-SECTIONAL HEIGHT0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
OUTSIDE DIAMETER1.734 INCHES MINIMUM AND 1.776 INCHES MAXIMUM IN
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
199986Interchangeable
interchangeable cross-reference
interchangeable
M83248/1-129Interchangeable
interchangeable cross-reference
interchangeable
ST1050-129Interchangeable
interchangeable cross-reference
interchangeable
108838Interchangeable
interchangeable cross-reference
interchangeable
AS568-129MILP5516-70DURMInterchangeable
interchangeable cross-reference
interchangeable
V3D10075PC29CPInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
Ready to buy MS28775-129?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is MS28775-129?
MS28775-129 is a O-RING.
What parts can replace MS28775-129?
There are 19 known substitutes for MS28775-129: 199986, M83248/1-129, ST1050-129 and 16 more. Substitute compatibility should be verified for your specific system.
Is MS28775-129 still available?
MS28775-129 is currently cancelled.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — MS28775-129