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NAS1611-438 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

NAS1611-438: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER ETHYLENE-PROPYLENE CLASS EPM, center_hole_diameter: 6.202 INCHES MINIMUM AND 6.248 INCHES MAXIMUM IN, cross-sectional_height: 0.269 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN, material_document_and_classification: NAS1613 CLASS 2 ASSN STD SINGLE MATERIAL RESPONSE. This part is cataloged in the U.S.

Government catalog under NSN 5331-01-451-8570, 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
NAS1611-438
NSN: 5331-01-451-8570
FSC: 5331 — O-ring
CAGE: 80205 — NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE (USA)
SPECIFICATIONS
materialRUBBER ETHYLENE-PROPYLENE CLASS EPM
center_hole_diameter6.202 INCHES MINIMUM AND 6.248 INCHES MAXIMUM IN
cross-sectional_height0.269 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN
material_document_and_classificationNAS1613 CLASS 2 ASSN STD SINGLE MATERIAL RESPONSE
NSN5331-01-451-8570
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: NAS1611-438 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
•
CROSS-SECTIONAL HEIGHT: 0.269 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: NAS1613 CLASS 2 ASSN STD SINGLE MATERIAL RESPONSE
•
CENTER HOLE DIAMETER: 6.202 INCHES MINIMUM AND 6.248 INCHES MAXIMUM IN
•
MATERIAL: RUBBER ETHYLENE-PROPYLENE CLASS EPM
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.269 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONNAS1613 CLASS 2 ASSN STD SINGLE MATERIAL RESPONSE
CENTER HOLE DIAMETER6.202 INCHES MINIMUM AND 6.248 INCHES MAXIMUM IN
MATERIALRUBBER ETHYLENE-PROPYLENE CLASS EPM
OTHER ITEMS IN FSC 5331 — O-ring
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5331-00-001-1971 5331-00-001-1979 5331-00-001-3904 5331-00-001-3905 5331-00-001-3906 5331-00-001-3908 5331-00-001-3923 5331-00-001-3924
SUBSTITUTES & CROSS-REFERENCES 2
917707Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
NAS1613Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is NAS1611-438?
NAS1611-438 is a O-RING.
What parts can replace NAS1611-438?
There are 2 known substitutes for NAS1611-438: 917707, NAS1613. Substitute compatibility should be verified for your specific system.
What is the NSN for NAS1611-438?
NAS1611-438 is cataloged in the U.S. Government catalog under NSN 5331-01-451-8570. This indicates validated use in U.S. government and defense supply chains.
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