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A1205Q641 — SEAL,PLAIN ENCASED

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

A1205Q641: SEAL,PLAIN ENCASED.

The SEAL,PLAIN ENCASED is a the manufacturer industrial component. Key specifications include material: LEATHER SEALING ELEMENT, case_style: SQUARE, seal_width: 1.615 INCHES MINIMUM AND 1.635 INCHES MAXIMUM IN, housing_bore_diameter: 2.556 INCHES MINIMUM AND 2.560 INCHES MAXIMUM IN, sealing_element_style: ANGULAR, accommodated_shaft_diameter: 1.937 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-353-2295, 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
A1205Q641
NSN: 5330-00-353-2295
FSC: 5330 — Packing and Gasket Materials
CAGE: 78500 — MERITOR HEAVY VEHICLE SYSTEMS, LLC (USA)
SPECIFICATIONS
materialLEATHER SEALING ELEMENT
case_styleSQUARE
seal_width1.615 INCHES MINIMUM AND 1.635 INCHES MAXIMUM IN
housing_bore_diameter2.556 INCHES MINIMUM AND 2.560 INCHES MAXIMUM IN
sealing_element_styleANGULAR
accommodated_shaft_diameter1.937 INCHES NOMINAL IN
NSN5330-00-353-2295
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A1205Q641 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
•
SEAL WIDTH: 1.615 INCHES MINIMUM AND 1.635 INCHES MAXIMUM IN
•
SEALING ELEMENT STYLE: ANGULAR
•
HOUSING BORE DIAMETER: 2.556 INCHES MINIMUM AND 2.560 INCHES MAXIMUM IN
•
CASE STYLE: SQUARE
•
ACCOMMODATED SHAFT DIAMETER: 1.937 INCHES NOMINAL IN
•
MATERIAL: STEEL CASE
TECHNICAL CHARACTERISTICS
SEAL WIDTH1.615 INCHES MINIMUM AND 1.635 INCHES MAXIMUM IN
SEALING ELEMENT STYLEANGULAR
HOUSING BORE DIAMETER2.556 INCHES MINIMUM AND 2.560 INCHES MAXIMUM IN
CASE STYLESQUARE
ACCOMMODATED SHAFT DIAMETER1.937 INCHES NOMINAL IN
MATERIALSTEEL CASE
MATERIALLEATHER SEALING ELEMENT
SUBSTITUTES & CROSS-REFERENCES 9
26128FReference document
Same NSN cross-reference
Reference document — Secondary reference
49423Reference document
Same NSN cross-reference
Reference document — Secondary reference
26128Reference document
Same NSN cross-reference
Reference document — Secondary reference
4FKW0395Reference document
Same NSN cross-reference
Reference document — Secondary reference
11A8943Reference document
Same NSN cross-reference
Reference document — Secondary reference
7331886Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is A1205Q641?
A1205Q641 is a SEAL,PLAIN ENCASED.
What parts can replace A1205Q641?
There are 9 known substitutes for A1205Q641: 26128F, 49423, 26128 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A1205Q641?
A1205Q641 is cataloged in the U.S. Government catalog under NSN 5330-00-353-2295. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
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.