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351-20500-312A — RETAINER,PACKING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

351-20500-312A: RETAINER,PACKING.

The RETAINER,PACKING is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYURETHANE OVERALL, hardness_rating: 95.0 SHORE DUROMETER A NOMINAL OVERALL, special_features: RUBBER SPRING ACTUATED (RSA) SCRAPER, peripheral_diameter: 0.678 INCHES NOMINAL IN, center_hole_diameter: 0.435 INCHES NOMINAL IN, cross-sectional_height: 0.188 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-392-9533, 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
351-20500-312A
NSN: 5330-01-392-9533
FSC: 5330 — Packing and Gasket Materials
CAGE: 5F573 — GREENE TWEED & CO INC (USA)
SPECIFICATIONS
materialPLASTIC POLYURETHANE OVERALL
hardness_rating95.0 SHORE DUROMETER A NOMINAL OVERALL
special_featuresRUBBER SPRING ACTUATED (RSA) SCRAPER
peripheral_diameter0.678 INCHES NOMINAL IN
center_hole_diameter0.435 INCHES NOMINAL IN
cross-sectional_height0.188 INCHES NOMINAL IN
end_item_identificationPACER DAWN
cross-sectional_shape_styleU WITH O-RING
NSN5330-01-392-9533
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 351-20500-312A 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: 0.188 INCHES NOMINAL IN
•
HARDNESS RATING: 95.0 SHORE DUROMETER A NOMINAL OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: U WITH O-RING
•
PERIPHERAL DIAMETER: 0.678 INCHES NOMINAL IN
•
CENTER HOLE DIAMETER: 0.435 INCHES NOMINAL IN
•
MATERIAL: PLASTIC POLYURETHANE OVERALL
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.188 INCHES NOMINAL IN
HARDNESS RATING95.0 SHORE DUROMETER A NOMINAL OVERALL
CROSS-SECTIONAL SHAPE STYLEU WITH O-RING
PERIPHERAL DIAMETER0.678 INCHES NOMINAL IN
SPECIAL FEATURESRUBBER SPRING ACTUATED (RSA) SCRAPER
CENTER HOLE DIAMETER0.435 INCHES NOMINAL IN
END ITEM IDENTIFICATIONPACER DAWN
MATERIALPLASTIC POLYURETHANE 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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 351-20500-312A?
351-20500-312A is a RETAINER,PACKING.
What is the NSN for 351-20500-312A?
351-20500-312A is cataloged in the U.S. Government catalog under NSN 5330-01-392-9533. This indicates validated use in U.S. government and defense supply chains.
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