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N400-1PCAU51YA004 — GASKET

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

N400-1PCAU51YA004: GASKET.

The GASKET is a the manufacturer industrial component. Key specifications include material: IRON OVERALL, outside_diameter: 0.438 INCHES NOMINAL IN, style_designator: CIRCULAR, aperture_diameter: 0.328 INCHES NOMINAL IN, cross-sectional_thickness: 0.031 INCHES NOMINAL IN, cross-sectional_shape_style: RECTANGULAR METAL. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-375-6989, 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
N400-1PCAU51YA004
NSN: 5330-00-375-6989
FSC: 5330 — Packing and Gasket Materials
CAGE: 10855 — CARRIER CORP (USA)
SPECIFICATIONS
materialIRON OVERALL
outside_diameter0.438 INCHES NOMINAL IN
style_designatorCIRCULAR
aperture_diameter0.328 INCHES NOMINAL IN
cross-sectional_thickness0.031 INCHES NOMINAL IN
cross-sectional_shape_styleRECTANGULAR METAL
NSN5330-00-375-6989
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: N400-1PCAU51YA004 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 THICKNESS: 0.031 INCHES NOMINAL IN
•
STYLE DESIGNATOR: CIRCULAR
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR METAL
•
OUTSIDE DIAMETER: 0.438 INCHES NOMINAL IN
•
APERTURE DIAMETER: 0.328 INCHES NOMINAL IN
•
MATERIAL: IRON OVERALL
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.031 INCHES NOMINAL IN
STYLE DESIGNATORCIRCULAR
CROSS-SECTIONAL SHAPE STYLERECTANGULAR METAL
OUTSIDE DIAMETER0.438 INCHES NOMINAL IN
APERTURE DIAMETER0.328 INCHES NOMINAL IN
MATERIALIRON 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 5
52120-5901-998700ALT2PC614Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
AV51YA-004Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
5330PL0870857Reference document
Same NSN cross-reference
Reference document — Informative reference only
N11950ALT2PC614Reference document
Same NSN cross-reference
Reference document — Secondary reference
AU51YA004-10855Reference 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 N400-1PCAU51YA004?
N400-1PCAU51YA004 is a GASKET.
What parts can replace N400-1PCAU51YA004?
There are 5 known substitutes for N400-1PCAU51YA004: 52120-5901-998700ALT2PC614, AV51YA-004, 5330PL0870857 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for N400-1PCAU51YA004?
N400-1PCAU51YA004 is cataloged in the U.S. Government catalog under NSN 5330-00-375-6989. 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.