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72893 — PISTON,VALVE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

72893: PISTON,VALVE.

The PISTON,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL CASE, case_style: SQUARE, seal_width: 0.375 INCHES NOMINAL IN, housing_bore_diameter: 3.253 INCHES MINIMUM AND 3.257 INCHES MAXIMUM IN, sealing_element_style: VERTICAL, accommodated_shaft_diameter: 2.500 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-136-2810, 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
72893
NSN: 5330-00-136-2810
NIINs: 001362810, 012702425, 014753432
FSC: 5330 — Packing and Gasket Materials
CAGE: 95097 — LITTLE GIANT CRANE AND SHOVEL INC (USA)
SPECIFICATIONS
materialSTEEL CASE
case_styleSQUARE
seal_width0.375 INCHES NOMINAL IN
housing_bore_diameter3.253 INCHES MINIMUM AND 3.257 INCHES MAXIMUM IN
sealing_element_styleVERTICAL
accommodated_shaft_diameter2.500 INCHES NOMINAL IN
NSN5330-00-136-2810
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 72893 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: 0.375 INCHES NOMINAL IN
•
SEALING ELEMENT STYLE: VERTICAL
•
HOUSING BORE DIAMETER: 3.253 INCHES MINIMUM AND 3.257 INCHES MAXIMUM IN
•
CASE STYLE: SQUARE
•
ACCOMMODATED SHAFT DIAMETER: 2.500 INCHES NOMINAL IN
•
MATERIAL: STEEL CASE
TECHNICAL CHARACTERISTICS
SEAL WIDTH0.375 INCHES NOMINAL IN
SEALING ELEMENT STYLEVERTICAL
HOUSING BORE DIAMETER3.253 INCHES MINIMUM AND 3.257 INCHES MAXIMUM IN
CASE STYLESQUARE
ACCOMMODATED SHAFT DIAMETER2.500 INCHES NOMINAL IN
MATERIALSTEEL CASE
MATERIALRUBBER SYNTHETIC SEALING ELEMENT
SUBSTITUTES & CROSS-REFERENCES 2
3405HReference document
Same NSN cross-reference
Reference document — Secondary reference
47215Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 72893?
72893 is a PISTON,VALVE.
What parts can replace 72893?
There are 2 known substitutes for 72893: 3405H, 47215. Substitute compatibility should be verified for your specific system.
What is the NSN for 72893?
72893 is cataloged in the U.S. Government catalog under NSN 5330-00-136-2810. This indicates validated use in U.S. government and defense supply chains.
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