PartsTable
Technical Data Sheet
Download PDF

A-1205-J-738 — SEAL,PLAIN ENCASED

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

A-1205-J-738: SEAL,PLAIN ENCASED.

The SEAL,PLAIN ENCASED is a the manufacturer industrial component. Key specifications include material: STEEL CASE, case_style: SQUARE, seal_width: 0.546 INCHES MINIMUM AND 0.578 INCHES MAXIMUM IN, housing_bore_diameter: 4.754 INCHES MINIMUM AND 4.758 INCHES MAXIMUM IN, sealing_element_style: ANGULAR, accommodated_shaft_diameter: 3.438 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-844-0539, 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
A-1205-J-738
NSN: 5330-00-844-0539
FSC: 5330 — Packing and Gasket Materials
CAGE: 78500 — MERITOR HEAVY VEHICLE SYSTEMS, LLC (USA)
SPECIFICATIONS
materialSTEEL CASE
case_styleSQUARE
seal_width0.546 INCHES MINIMUM AND 0.578 INCHES MAXIMUM IN
housing_bore_diameter4.754 INCHES MINIMUM AND 4.758 INCHES MAXIMUM IN
sealing_element_styleANGULAR
accommodated_shaft_diameter3.438 INCHES NOMINAL IN
NSN5330-00-844-0539
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A-1205-J-738 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: 0.546 INCHES MINIMUM AND 0.578 INCHES MAXIMUM IN
•
SEALING ELEMENT STYLE: ANGULAR
•
HOUSING BORE DIAMETER: 4.754 INCHES MINIMUM AND 4.758 INCHES MAXIMUM IN
•
CASE STYLE: SQUARE
•
ACCOMMODATED SHAFT DIAMETER: 3.438 INCHES NOMINAL IN
•
MATERIAL: STEEL CASE
TECHNICAL CHARACTERISTICS
SEAL WIDTH0.546 INCHES MINIMUM AND 0.578 INCHES MAXIMUM IN
SEALING ELEMENT STYLEANGULAR
HOUSING BORE DIAMETER4.754 INCHES MINIMUM AND 4.758 INCHES MAXIMUM IN
CASE STYLESQUARE
ACCOMMODATED SHAFT DIAMETER3.438 INCHES NOMINAL IN
MATERIALSTEEL CASE
MATERIALRUBBER SYNTHETIC SEALING ELEMENT
SUBSTITUTES & CROSS-REFERENCES 2
27104Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
9-049-106281Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
Ready to buy A-1205-J-738?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is A-1205-J-738?
A-1205-J-738 is a SEAL,PLAIN ENCASED.
What parts can replace A-1205-J-738?
There are 2 known substitutes for A-1205-J-738: 27104, 9-049-106281. Substitute compatibility should be verified for your specific system.
What is the NSN for A-1205-J-738?
A-1205-J-738 is cataloged in the U.S. Government catalog under NSN 5330-00-844-0539. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — A-1205-J-738

✓ 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.