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639AS6744 — RETAINER,PACKING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

639AS6744: RETAINER,PACKING.

The RETAINER,PACKING is a the manufacturer industrial component. Key specifications include angle: 30.0 DEGREES NOMINAL, material: RUBBER ETHYLENE-PROPYLENE CLASS EPM OVERALL, peripheral_diameter: 0.629 INCHES MINIMUM AND 0.630 INCHES MAXIMUM IN, center_hole_diameter: 0.454 INCHES MINIMUM AND 0.470 INCHES MAXIMUM IN, cross-sectional_height: 0.071 INCHES MINIMUM AND 0.091 INCHES MAXIMUM IN, material_document_and_classification: ASTM D2000,-2AA907A13F17EA14Z ASSN STD SINGLE MATERIAL RESPONSE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-374-0401, 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
639AS6744
NSN: 5330-01-374-0401
FSC: 5330 — Packing and Gasket Materials
CAGE: 30003 — NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
angle30.0 DEGREES NOMINAL
materialRUBBER ETHYLENE-PROPYLENE CLASS EPM OVERALL
peripheral_diameter0.629 INCHES MINIMUM AND 0.630 INCHES MAXIMUM IN
center_hole_diameter0.454 INCHES MINIMUM AND 0.470 INCHES MAXIMUM IN
cross-sectional_height0.071 INCHES MINIMUM AND 0.091 INCHES MAXIMUM IN
material_document_and_classificationASTM D2000,-2AA907A13F17EA14Z ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5330-01-374-0401
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 639AS6744 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
•
CROSS-SECTIONAL HEIGHT: 0.071 INCHES MINIMUM AND 0.091 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM D2000,-2AA907A13F17EA14Z ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
ANGLE: 30.0 DEGREES NOMINAL
•
PERIPHERAL DIAMETER: 0.629 INCHES MINIMUM AND 0.630 INCHES MAXIMUM IN
•
CENTER HOLE DIAMETER: 0.454 INCHES MINIMUM AND 0.470 INCHES MAXIMUM IN
•
MATERIAL: RUBBER ETHYLENE-PROPYLENE CLASS EPM OVERALL
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.071 INCHES MINIMUM AND 0.091 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONASTM D2000,-2AA907A13F17EA14Z ASSN STD SINGLE MATERIAL RESPONSE OVERALL
ANGLE30.0 DEGREES NOMINAL
PERIPHERAL DIAMETER0.629 INCHES MINIMUM AND 0.630 INCHES MAXIMUM IN
CENTER HOLE DIAMETER0.454 INCHES MINIMUM AND 0.470 INCHES MAXIMUM IN
MATERIALRUBBER ETHYLENE-PROPYLENE CLASS EPM OVERALL
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
S53P86S644304207Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 639AS6744?
639AS6744 is a RETAINER,PACKING.
What parts can replace 639AS6744?
There is 1 known substitute for 639AS6744: S53P86S644304207. Substitute compatibility should be verified for your specific system.
What is the NSN for 639AS6744?
639AS6744 is cataloged in the U.S. Government catalog under NSN 5330-01-374-0401. This indicates validated use in U.S. government and defense supply chains.
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