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074-6406328 — GUIDE BLOCK,DOOR,MARINE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

074-6406328: GUIDE BLOCK,DOOR,MARINE.

The GUIDE BLOCK,DOOR,MARINE is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC OVERALL, minor_width: 0.390 INCHES MINIMUM AND 0.390 INCHES MINIMUM AND 0.410 INCHES MAXIMUM0.410 INCHES MAXIMUM IN, construction: ONE-PIECEONE-PIECE, overall_width: 2.500 INCHES NOMINAL IN, overall_height: 1.000 INCHES NOMINAL IN, overall_length: 10.200 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-509-4749, 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
074-6406328
NSN: 5330-01-509-4749
NIINs: 015094749, 015098264, 015098328, 015104293, 015105321
FSC: 5330 — Packing and Gasket Materials
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC OVERALL
minor_width0.390 INCHES MINIMUM AND 0.390 INCHES MINIMUM AND 0.410 INCHES MAXIMUM0.410 INCHES MAXIMUM IN
constructionONE-PIECEONE-PIECE
overall_width2.500 INCHES NOMINAL IN
overall_height1.000 INCHES NOMINAL IN
overall_length10.200 INCHES NOMINAL IN
hardness_rating50.0 SHORE DUROMETER A NOMINAL OVERALL
special_featuresCONE SHAPED;POINT HAS RADIUS OF 0.120
style_designatorCIRCULAR
aperture_diameter67.450 INCHES NOMINAL67.450 INCHES NOMINAL IN
cross-sectional_width0.745 INCHES MINIMUM AND 0.745 INCHES MINIMUM AND 0.750 INCHES MAXIMUM0.750 INCHES MAXIMUM IN
cross-sectional_height0.890 INCHES MINIMUM AND 0.890 INCHES MINIMUM AND 0.910 INCHES MAXIMUM0.910 INCHES MAXIMUM IN
NSN5330-01-509-4749
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 074-6406328 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: 0.190 INCHES MINIMUM AND 0.190 INCHES MINIMUM AND 0.210 INCHES MAXIMUM0.210 INCHES MAXIMUM IN
•
CROSS-SECTIONAL HEIGHT: 0.890 INCHES MINIMUM AND 0.890 INCHES MINIMUM AND 0.910 INCHES MAXIMUM0.910 INCHES MAXIMUM IN
•
CROSS-SECTIONAL WIDTH: 0.745 INCHES MINIMUM AND 0.745 INCHES MINIMUM AND 0.750 INCHES MAXIMUM0.750 INCHES MAXIMUM IN
•
HARDNESS RATING: 50.0 SHORE DUROMETER A NOMINAL OVERALL
•
STYLE DESIGNATOR: CIRCULAR
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-R-15624 CL-III MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: BEVELED-SQUARE BASEBEVELED-SQUARE BASE
•
APERTURE DIAMETER: 67.450 INCHES NOMINAL67.450 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.190 INCHES MINIMUM AND 0.190 INCHES MINIMUM AND 0.210 INCHES MAXIMUM0.210 INCHES MAXIMUM IN
CROSS-SECTIONAL HEIGHT0.890 INCHES MINIMUM AND 0.890 INCHES MINIMUM AND 0.910 INCHES MAXIMUM0.910 INCHES MAXIMUM IN
CROSS-SECTIONAL WIDTH0.745 INCHES MINIMUM AND 0.745 INCHES MINIMUM AND 0.750 INCHES MAXIMUM0.750 INCHES MAXIMUM IN
HARDNESS RATING50.0 SHORE DUROMETER A NOMINAL OVERALL
STYLE DESIGNATORCIRCULAR
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-15624 CL-III MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLEBEVELED-SQUARE BASEBEVELED-SQUARE BASE
APERTURE DIAMETER67.450 INCHES NOMINAL67.450 INCHES NOMINAL IN
MINOR WIDTH0.390 INCHES MINIMUM AND 0.390 INCHES MINIMUM AND 0.410 INCHES MAXIMUM0.410 INCHES MAXIMUM IN
SPECIAL FEATURESCONE SHAPED;POINT HAS RADIUS OF 0.120
SUBSTITUTES & CROSS-REFERENCES 4
211035660Reference document
Same NSN cross-reference
Reference document — Secondary reference
640328PC27Reference document
Same NSN cross-reference
Reference document — Secondary reference
074-6406328-27Reference document
Same NSN cross-reference
Reference document — Secondary reference
100-6985275Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Shelf-life managedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 074-6406328?
074-6406328 is a GUIDE BLOCK,DOOR,MARINE.
What parts can replace 074-6406328?
There are 4 known substitutes for 074-6406328: 211035660, 640328PC27, 074-6406328-27 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 074-6406328?
074-6406328 is cataloged in the U.S. Government catalog under NSN 5330-01-509-4749. 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.