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AMS-7259 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

AMS-7259: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER FLUOROCARBON CLASS FPM, temp_rating: -15.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF, hardness_rating: 85.0 SHORE DUROMETER A MINIMUM AND 95.0 SHORE DUROMETER A MAXIMUM, special_features: M83248/2 SUPERSEDED BY AS3209, center_hole_diameter: 0.667 INCHES MINIMUM AND 0.685 INCHES MAXIMUM IN, cross-sectional_height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5331-00-001-6681, 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
AMS-7259
NSN: 5331-00-001-6681
NIINs: 000016681, 001661078, 001661081, 001661085, 001661087, 001661091, 001661098, 001661100, 001661109, 001661111, 001675171, 001675172, 001675175, 001727189, 002119143, 003381440, 004250649, 005285236, 005567506, 005567513, 008316643, 009009428, 009271910, 009286806, 010062130, 010176535, 010185663, 010229019, 010242512, 010274703, 010286511, 010286512, 010431417, 010431904, 010455604, 010573134, 010584008, 010992558, 011044411, 011060942, 011193220, 011209550, 011218092, 011251731, 011747868, 011759164, 011764014, 011773403, 011805229, 011863498, 012013348, 012032327, 012052857, 012053476, 012113124, 012113125, 012124623, 012157329, 012179096, 012197478, 012220838, 012226927, 012234425, 012298081, 012322372, 012361749, 012377661, 012430772, 012520124, 012864695, 013264328, 014182971, 014182974, 014229794, 014702127, 014840125, 014994733, 015128642, 015180486, 015286356, 015286410, 015935836, 016505036
FSC: 5331 — O-ring
CAGE: 81343 — SOCIETY OF AUTOMOTIVE ENGINEERS INC (USA)
SPECIFICATIONS
materialRUBBER FLUOROCARBON CLASS FPM
temp_rating-15.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF
hardness_rating85.0 SHORE DUROMETER A MINIMUM AND 95.0 SHORE DUROMETER A MAXIMUM
special_featuresM83248/2 SUPERSEDED BY AS3209
center_hole_diameter0.667 INCHES MINIMUM AND 0.685 INCHES MAXIMUM IN
cross-sectional_height0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
end_item_identificationDRY DECK SHELTER O2 PRESSURE REDUCING MANIFOLD (MB-74)
specification/standard_data03950-AS3209 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
departure_from_cited_documentCLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D
criticality_code_justificationZZZY
material_document_and_classificationSAE AMS7259 ASSN STD SINGLE MATERIAL RESPONSE
reference_number_differentiating_characteristicsCLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D.
NSN5331-00-001-6681
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: AMS-7259 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
•
TEMP RATING: -20.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF
•
CROSS-SECTIONAL HEIGHT: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
•
OUTSIDE DIAMETER: 3.693 INCHES NOMINAL IN
•
HARDNESS RATING: 90.0 SHORE DUROMETER A NOMINAL
•
CENTER HOLE DIAMETER: 3.463 INCHES MINIMUM AND 3.511 INCHES MAXIMUM IN
•
MATERIAL: RUBBER FLUOROCARBON CLASS FPM
TECHNICAL CHARACTERISTICS
TEMP RATING-20.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF
CROSS-SECTIONAL HEIGHT0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
OUTSIDE DIAMETER3.693 INCHES NOMINAL IN
HARDNESS RATING90.0 SHORE DUROMETER A NOMINAL
CENTER HOLE DIAMETER3.463 INCHES MINIMUM AND 3.511 INCHES MAXIMUM IN
MATERIALRUBBER FLUOROCARBON CLASS FPM
SUBSTITUTES & CROSS-REFERENCES 6
M83248/2-153Reference document
Same NSN cross-reference
Reference document — Secondary reference
MILR-83248/2Reference document
Same NSN cross-reference
Reference document — Secondary reference
AS3581-153Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
NAS1594-153Reference document
Same NSN cross-reference
Reference document — Secondary reference
SAE-AS3581Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
R1312P153Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is AMS-7259?
AMS-7259 is a O-RING.
What parts can replace AMS-7259?
There are 6 known substitutes for AMS-7259: M83248/2-153, MILR-83248/2, AS3581-153 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AMS-7259?
AMS-7259 is cataloged in the U.S. Government catalog under NSN 5331-00-001-6681. This indicates validated use in U.S. government and defense supply chains.
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U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.