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Technical Data Sheet
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6407529 ITEM 6 — 6407529 ITEM 6

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

6407529 ITEM 6: 6407529 ITEM 6.

The 6407529 ITEM 6 is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5331-01-453-8140, 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
6407529 ITEM 6
NSN: 5331-01-453-8140
FSC: 5331 — O-ring
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
Part Number6407529 ITEM 6
NSN5331-01-453-8140
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 6407529 ITEM 6 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: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-R-83485, TY 1 MIL SPEC SINGLE MATERIAL RESPONSE
•
CENTER HOLE DIAMETER: 27.880 INCHES MINIMUM AND 28.120 INCHES MAXIMUM IN
•
MATERIAL: RUBBER FLUOROCARBON CLASS FPM
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-83485, TY 1 MIL SPEC SINGLE MATERIAL RESPONSE
CENTER HOLE DIAMETER27.880 INCHES MINIMUM AND 28.120 INCHES MAXIMUM IN
MATERIALRUBBER FLUOROCARBON CLASS FPM
SUBSTITUTES & CROSS-REFERENCES 2
754-6407600 ITEM 1Reference document
Same NSN cross-reference
Reference document — Secondary reference
754-6407529 ITEM 6Reference 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 6407529 ITEM 6?
6407529 ITEM 6 is a 6407529 ITEM 6.
What parts can replace 6407529 ITEM 6?
There are 2 known substitutes for 6407529 ITEM 6: 754-6407600 ITEM 1, 754-6407529 ITEM 6. Substitute compatibility should be verified for your specific system.
What is the NSN for 6407529 ITEM 6?
6407529 ITEM 6 is cataloged in the U.S. Government catalog under NSN 5331-01-453-8140. 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.