PartsTable
Technical Data Sheet
PartsTable / O-RING / MS-28775-022
MS-28775-022 ✓ 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 275.0 FAHRENHEIT DEGF, outside_diameter: 1.129 INCHES NOMINAL IN, special_features: MIL-I-45208; MIL-STD-129, center_hole_diameter: 1.000 INCHES NOMINAL IN, elongation_percentage: 160 MAXIMUM. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-691-0145, 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
MS-28775-022
NSN: 5331-00-691-0145
FSC: 5331 — O-RING
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
temp_rating-65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF
outside_diameter1.129 INCHES NOMINAL IN
special_featuresMIL-I-45208; MIL-STD-129
center_hole_diameter1.000 INCHES NOMINAL IN
elongation_percentage160 MAXIMUM
cross-sectional_height0.062 INCHES NOMINAL IN
criticality_code_justificationZZZY
reference_number_differentiating_characteristicsMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
NSN5331-00-691-0145
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: MS-28775-022 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
•
CROSS-SECTIONAL HEIGHT: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
•
CENTER HOLE DIAMETER: 0.979 INCHES MINIMUM AND 0.999 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
END ITEM IDENTIFICATIONMULTIPLE LAUNCH ROCKET SYSTEM (MLRS)
CROSS-SECTIONAL HEIGHT0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
CENTER HOLE DIAMETER0.979 INCHES MINIMUM AND 0.999 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
CK63AY103MInterchangeable
interchangeable cross-reference
interchangeable
1007--5107Interchangeable
interchangeable cross-reference
interchangeable
605023Interchangeable
interchangeable cross-reference
interchangeable
7377022Interchangeable
interchangeable cross-reference
interchangeable
845-1889587PC19(0.50IN)Interchangeable
interchangeable cross-reference
interchangeable
MS-28775-022Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS-28775-022?
MS-28775-022 is a O-RING.
What parts can replace MS-28775-022?
There are 19 known substitutes for MS-28775-022: CK63AY103M, 1007--5107, 605023 and 16 more. Substitute compatibility should be verified for your specific system.
Is MS-28775-022 still available?
MS-28775-022 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026