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545261 — SEAL,PLAIN ENCASED

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

545261: SEAL,PLAIN ENCASED.

The SEAL,PLAIN ENCASED is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC SEALING ELEMENT B, case_style: SQUARE, seal_width: 0.735 INCHES MINIMUM AND 0.765 INCHES MAXIMUM IN, housing_bore_diameter: 4.004 INCHES NOMINAL IN, sealing_element_style: VERTICAL-ANGULAR, accommodated_shaft_diameter: 3.000 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-054-5261, 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
545261
NSN: 5330-00-054-5261
FSC: 5330 — Packing and Gasket Materials
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC SEALING ELEMENT B
case_styleSQUARE
seal_width0.735 INCHES MINIMUM AND 0.765 INCHES MAXIMUM IN
housing_bore_diameter4.004 INCHES NOMINAL IN
sealing_element_styleVERTICAL-ANGULAR
accommodated_shaft_diameter3.000 INCHES NOMINAL IN
accommodated_shaft_maximum_rated_speed1600 FEET PER MINUTE FT
NSN5330-00-054-5261
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 545261 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: 0.735 INCHES MINIMUM AND 0.765 INCHES MAXIMUM IN
•
SEALING ELEMENT STYLE: VERTICAL-ANGULAR
•
HOUSING BORE DIAMETER: 4.004 INCHES NOMINAL IN
•
ACCOMMODATED SHAFT MAXIMUM RATED SPEED: 1600 FEET PER MINUTE FT
•
CASE STYLE: SQUARE
•
ACCOMMODATED SHAFT DIAMETER: 3.000 INCHES NOMINAL IN
•
MATERIAL: LEATHER SEALING ELEMENT A
TECHNICAL CHARACTERISTICS
SEAL WIDTH0.735 INCHES MINIMUM AND 0.765 INCHES MAXIMUM IN
SEALING ELEMENT STYLEVERTICAL-ANGULAR
HOUSING BORE DIAMETER4.004 INCHES NOMINAL IN
ACCOMMODATED SHAFT MAXIMUM RATED SPEED1600 FEET PER MINUTE FT
CASE STYLESQUARE
ACCOMMODATED SHAFT DIAMETER3.000 INCHES NOMINAL IN
MATERIALLEATHER SEALING ELEMENT A
MATERIALRUBBER SYNTHETIC SEALING ELEMENT B
OTHER ITEMS IN FSC 5330 — Packing and Gasket Materials
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5330-00-000-0085 5330-00-000-0167 5330-00-000-5275 5330-00-001-1260 5330-00-001-1833 5330-00-001-1844 5330-00-001-1845 5330-00-001-1846
SUBSTITUTES & CROSS-REFERENCES 1
00044Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 545261?
545261 is a SEAL,PLAIN ENCASED.
What parts can replace 545261?
There is 1 known substitute for 545261: 00044. Substitute compatibility should be verified for your specific system.
What is the NSN for 545261?
545261 is cataloged in the U.S. Government catalog under NSN 5330-00-054-5261. This indicates validated use in U.S. government and defense supply chains.
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