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Technical Data Sheet
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MS28775-908 — Technical Data Sheet

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— · 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. This part is cataloged in the Federal Logistics Information System under NSN 5331-00-984-3786, 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
MS28775-908
NSN: 5331-00-984-3786
FSC: 5331 — O-RING
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
NSN5331-00-984-3786
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: MS28775-908 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
•
HARDNESS RATING: 70.0 SHORE DUROMETER A NOMINAL
•
MATERIAL: RUBBER SYNTHETIC
•
CENTER HOLE DIAMETER: 0.639 INCHES MINIMUM AND 0.649 INCHES MAXIMUM IN
•
TEMP RATING: -30.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
•
OUTSIDE DIAMETER: 0.803 INCHES MINIMUM AND 0.833 INCHES MAXIMUM IN
•
CROSS-SECTIONAL HEIGHT: 0.084 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN
•
ELONGATION PERCENTAGE: 331 MAXIMUM
TECHNICAL CHARACTERISTICS
HARDNESS RATING70.0 SHORE DUROMETER A NOMINAL
MATERIALRUBBER SYNTHETIC
END ITEM IDENTIFICATIONHELICOPTER, CARRIER BASED ASW, SH-60F; HELICOPTER, USCG SEARCH AND RESCUE, HH-60J; SHIPBOARD MATERIAL HANDLING EQUIPMENT (MHE), DEEP SUBMERGENCE SYSTEMS PROGRAMS (DSSP); TORPEDO, MK 48; HELICOPTER, SEARCH AND RESCUE, HH-60H; ELEVATORS, CARGO/WEAPONS; ELEVATORS, AIRCRAFT; TORPEDO, ADCAP 48
CENTER HOLE DIAMETER0.639 INCHES MINIMUM AND 0.649 INCHES MAXIMUM IN
TEMP RATING-30.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
OUTSIDE DIAMETER0.803 INCHES MINIMUM AND 0.833 INCHES MAXIMUM IN
CROSS-SECTIONAL HEIGHT0.084 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN
ELONGATION PERCENTAGE331 MAXIMUM
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
3-908N219-7InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
3-908N674-7InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
691-00908-0KInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
2507294-51InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
AS28775-908InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
9-926-106222InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS28775-908?
MS28775-908 is a O-RING.
What parts can replace MS28775-908?
There are 11 known substitutes for MS28775-908: 3-908N219-7, 3-908N674-7, 691-00908-0K and 8 more. Substitute compatibility should be verified for your specific system.
Is MS28775-908 still available?
MS28775-908 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: October 2026