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1904137020 — PACKING,PREFORMED

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

1904137020: PACKING,PREFORMED.

The PACKING,PREFORMED is a the manufacturer industrial component. Key specifications include material: RUBBER FLUOROCARBON CLASS FPM OVERALL, hardness_rating: 75.0 SHORE DUROMETER A NOMINAL OVERALL, peripheral_diameter: 0.558 INCHES NOMINAL IN, center_hole_diameter: 0.409 INCHES MINIMUM AND 0.419 INCHES MAXIMUM IN, elongation_percentage: 125 MAXIMUM, cross-sectional_height: 0.069 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-064-5491, 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
1904137020
NSN: 5330-01-064-5491
FSC: 5330 — Packing and Gasket Materials
CAGE: F6137 — SAFRAN LANDING SYSTEMS (FRA)
SPECIFICATIONS
materialRUBBER FLUOROCARBON CLASS FPM OVERALL
hardness_rating75.0 SHORE DUROMETER A NOMINAL OVERALL
peripheral_diameter0.558 INCHES NOMINAL IN
center_hole_diameter0.409 INCHES MINIMUM AND 0.419 INCHES MAXIMUM IN
elongation_percentage125 MAXIMUM
cross-sectional_height0.069 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN
part_name_assigned_by_controlling_agencyPACKING,PREFORMED
NSN5330-01-064-5491
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 1904137020 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: 0.069 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN
•
HARDNESS RATING: 75.0 SHORE DUROMETER A NOMINAL OVERALL
•
ELONGATION PERCENTAGE: 125 MAXIMUM
•
PERIPHERAL DIAMETER: 0.558 INCHES NOMINAL IN
•
CENTER HOLE DIAMETER: 0.409 INCHES MINIMUM AND 0.419 INCHES MAXIMUM IN
•
MATERIAL: RUBBER FLUOROCARBON CLASS FPM OVERALL
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.069 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN
HARDNESS RATING75.0 SHORE DUROMETER A NOMINAL OVERALL
ELONGATION PERCENTAGE125 MAXIMUM
PERIPHERAL DIAMETER0.558 INCHES NOMINAL IN
CENTER HOLE DIAMETER0.409 INCHES MINIMUM AND 0.419 INCHES MAXIMUM IN
PART NAME ASSIGNED BY CONTROLLING AGENCYPACKING,PREFORMED
MATERIALRUBBER FLUOROCARBON CLASS FPM OVERALL
SUBSTITUTES & CROSS-REFERENCES 5
L-1140-096 PC36Reference document
Same NSN cross-reference
Reference document — Secondary reference
5330PL1032375Reference document
Same NSN cross-reference
Reference document — Informative reference only
5330PL1635675Reference document
Same NSN cross-reference
Reference document — Informative reference only
F-375-B-905-QT-AReference document
Same NSN cross-reference
Reference document — Secondary reference
M83248/1-905Reference 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 1904137020?
1904137020 is a PACKING,PREFORMED.
What parts can replace 1904137020?
There are 5 known substitutes for 1904137020: L-1140-096 PC36, 5330PL1032375, 5330PL1635675 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1904137020?
1904137020 is cataloged in the U.S. Government catalog under NSN 5330-01-064-5491. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.