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Technical Data Sheet
PartsTable / COMPONENT / H16-1778
H16-1778 ✓ Verified by PartsTable
— · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The GASKET is a the manufacturer industrial component. Key specifications include material: PAPER AND GLUE OVERALL, hole_diameter: 0.406 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, overall_width: 7.250 INCHES NOMINAL IN, aperture_width: 5.500 INCHES NOMINAL IN, overall_length: 9.875 INCHES NOMINAL IN, aperture_length: 8.625 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-353-5805, 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
H16-1778
NSN: 5330-00-353-5805
FSC: 5330
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
materialPAPER AND GLUE OVERALL
hole_diameter0.406 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
overall_width7.250 INCHES NOMINAL IN
aperture_width5.500 INCHES NOMINAL IN
overall_length9.875 INCHES NOMINAL IN
aperture_length8.625 INCHES NOMINAL IN
outside_corner_radius0.250 INCHES NOMINAL IN
cross-sectional_thickness0.016 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
material_document_and_classificationMIL-G-12803,+3313B MIL SPEC ALL MATERIAL RESPONSES OR MIL-G-12803,+3313C MIL SPEC ALL MATERIAL RESPONSES OVERALL
NSN5330-00-353-5805
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: H16-1778 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 SHAPE STYLE: SOLID SINGLE OR COMPOSITION
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-G-12803,+3313B MIL SPEC ALL MATERIAL RESPONSES OR MIL-G-12803,+3313C MIL SPEC ALL MATERIAL RESPONSES OVERALL
•
MATERIAL: PAPER AND GLUE OVERALL
•
OUTSIDE CORNER RADIUS: 0.250 INCHES NOMINAL IN
•
APERTURE WIDTH: 5.500 INCHES NOMINAL IN
•
APERTURE LENGTH: 8.625 INCHES NOMINAL IN
•
CROSS-SECTIONAL THICKNESS: 0.016 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-G-12803,+3313B MIL SPEC ALL MATERIAL RESPONSES OR MIL-G-12803,+3313C MIL SPEC ALL MATERIAL RESPONSES OVERALL
MATERIALPAPER AND GLUE OVERALL
OUTSIDE CORNER RADIUS0.250 INCHES NOMINAL IN
APERTURE WIDTH5.500 INCHES NOMINAL IN
OVERALL WIDTH7.250 INCHES NOMINAL IN
APERTURE LENGTH8.625 INCHES NOMINAL IN
CROSS-SECTIONAL THICKNESS0.016 INCHES NOMINAL IN
OVERALL LENGTH9.875 INCHES NOMINAL IN
HOLE DIAMETER0.406 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
38515-4Interchangeable
interchangeable cross-reference
interchangeable
AC259-4Interchangeable
interchangeable cross-reference
interchangeable
7324Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is H16-1778?
H16-1778 is a GASKET.
What parts can replace H16-1778?
There are 3 known substitutes for H16-1778: 38515-4, AC259-4, 7324. Substitute compatibility should be verified for your specific system.
What is the NSN for H16-1778?
H16-1778 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-353-5805. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026