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631269 — GASKET

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

631269: GASKET.

The GASKET is a the manufacturer industrial component. Key specifications include material: RUBBER SILICONE CLASS Q OVERALL, hole_diameter: 0.150 INCHES MINIMUM AND 0.170 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN, overall_width: 1.553 INCHES MINIMUM AND 1.573 INCHES MAXIMUM IN, overall_length: 1.553 INCHES MINIMUM AND 1.573 INCHES MAXIMUM IN, hardness_rating: 35.0 SHORE DUROMETER A MINIMUM AND 45.0 SHORE DUROMETER A MAXIMUM OVERALL, aperture_diameter: 1.375 INCHES MINIMUM AND 1.390 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-753-1392, 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
631269
NSN: 5330-00-753-1392
FSC: 5330 — Packing and Gasket Materials
CAGE: 06481 — NORTHROP GRUMMAN SYSTEMS CORPORATION DBA NORTHROP GRUMMAN SYSTEMS CORP (USA)
SPECIFICATIONS
materialRUBBER SILICONE CLASS Q OVERALL
hole_diameter0.150 INCHES MINIMUM AND 0.170 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN
overall_width1.553 INCHES MINIMUM AND 1.573 INCHES MAXIMUM IN
overall_length1.553 INCHES MINIMUM AND 1.573 INCHES MAXIMUM IN
hardness_rating35.0 SHORE DUROMETER A MINIMUM AND 45.0 SHORE DUROMETER A MAXIMUM OVERALL
aperture_diameter1.375 INCHES MINIMUM AND 1.390 INCHES MAXIMUM IN
fsc_application_dataAIR NAVIGATION COMPUTER
outside_corner_radius0.156 INCHES NOMINAL IN
maximum_pressure_rating700.0 POUNDS PER SQUARE INCH (PSI) LBS
cross-sectional_thickness0.031 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
material_document_and_classificationZZ-R-765 CL 2B FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5330-00-753-1392
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 631269 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
•
FSC APPLICATION DATA: AIR NAVIGATION COMPUTER
•
CROSS-SECTIONAL THICKNESS: 0.031 INCHES NOMINAL IN
•
MAXIMUM PRESSURE RATING: 700.0 POUNDS PER SQUARE INCH (PSI) LBS
•
HARDNESS RATING: 35.0 SHORE DUROMETER A MINIMUM AND 45.0 SHORE DUROMETER A MAXIMUM OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: ZZ-R-765 CL 2B FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
TECHNICAL CHARACTERISTICS
FSC APPLICATION DATAAIR NAVIGATION COMPUTER
CROSS-SECTIONAL THICKNESS0.031 INCHES NOMINAL IN
MAXIMUM PRESSURE RATING700.0 POUNDS PER SQUARE INCH (PSI) LBS
HARDNESS RATING35.0 SHORE DUROMETER A MINIMUM AND 45.0 SHORE DUROMETER A MAXIMUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONZZ-R-765 CL 2B FED SPEC SINGLE MATERIAL RESPONSE OVERALL
OVERALL LENGTH1.553 INCHES MINIMUM AND 1.573 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
OVERALL WIDTH1.553 INCHES MINIMUM AND 1.573 INCHES MAXIMUM IN
APERTURE DIAMETER1.375 INCHES MINIMUM AND 1.390 INCHES MAXIMUM IN
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG LENGTH1.240 INCHES MINIMUM AND 1.260 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN
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
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 631269?
631269 is a GASKET.
What is the NSN for 631269?
631269 is cataloged in the U.S. Government catalog under NSN 5330-00-753-1392. 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.