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A37318 — SEAL,PLAIN ENCASED

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

A37318: SEAL,PLAIN ENCASED.

The SEAL,PLAIN ENCASED is a the manufacturer industrial component. Key specifications include material: CARBON GRAPHITE SEALING ELEMENT, case_style: SQUARE, seal_width: 0.550 INCHES MINIMUM AND 0.578 INCHES MAXIMUM IN, temp_rating: 250.0 FAHRENHEIT DEGF, housing_bore_diameter: 2.501 INCHES MINIMUM AND 2.503 INCHES MAXIMUM IN, sealing_element_style: VERTICAL. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-955-9696, 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
A37318
NSN: 5330-00-955-9696
FSC: 5330 — Packing and Gasket Materials
CAGE: 77842 — EATON CORPORATION DBA EATON INOAC DIV EATON (USA)
SPECIFICATIONS
materialCARBON GRAPHITE SEALING ELEMENT
case_styleSQUARE
seal_width0.550 INCHES MINIMUM AND 0.578 INCHES MAXIMUM IN
temp_rating250.0 FAHRENHEIT DEGF
housing_bore_diameter2.501 INCHES MINIMUM AND 2.503 INCHES MAXIMUM IN
sealing_element_styleVERTICAL
accommodated_shaft_diameter1.810 INCHES MINIMUM AND 1.815 INCHES MAXIMUM IN
material_document_and_classificationN0. 39,FSCM 91547 MFR REF SINGLE MATERIAL RESPONSE SEALING ELEMENT
NSN5330-00-955-9696
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A37318 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
•
TEMP RATING: 250.0 FAHRENHEIT DEGF
•
SEAL WIDTH: 0.550 INCHES MINIMUM AND 0.578 INCHES MAXIMUM IN
•
SEALING ELEMENT STYLE: VERTICAL
•
HOUSING BORE DIAMETER: 2.501 INCHES MINIMUM AND 2.503 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD ALL MATERIAL RESPONSES CASE
•
CASE STYLE: SQUARE
•
ACCOMMODATED SHAFT DIAMETER: 1.810 INCHES MINIMUM AND 1.815 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
TEMP RATING250.0 FAHRENHEIT DEGF
SEAL WIDTH0.550 INCHES MINIMUM AND 0.578 INCHES MAXIMUM IN
SEALING ELEMENT STYLEVERTICAL
HOUSING BORE DIAMETER2.501 INCHES MINIMUM AND 2.503 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD ALL MATERIAL RESPONSES CASE
MATERIAL DOCUMENT AND CLASSIFICATIONN0. 39,FSCM 91547 MFR REF SINGLE MATERIAL RESPONSE SEALING ELEMENT
CASE STYLESQUARE
ACCOMMODATED SHAFT DIAMETER1.810 INCHES MINIMUM AND 1.815 INCHES MAXIMUM IN
MATERIALCARBON GRAPHITE SEALING ELEMENT
MATERIALSTEEL COMP 302 OR STEEL COMP 303 CASE
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 3
B30-800614AReference document
Same NSN cross-reference
Reference document — Secondary reference
1-300-334Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
1-300-334-01Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is A37318?
A37318 is a SEAL,PLAIN ENCASED.
What parts can replace A37318?
There are 3 known substitutes for A37318: B30-800614A, 1-300-334, 1-300-334-01. Substitute compatibility should be verified for your specific system.
What is the NSN for A37318?
A37318 is cataloged in the U.S. Government catalog under NSN 5330-00-955-9696. This indicates validated use in U.S. government and defense supply chains.
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