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3731-52-1 — FLOOR,AIRCRAFT

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

3731-52-1: FLOOR,AIRCRAFT.

The FLOOR,AIRCRAFT is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC OVERALL, construction: SOLIDSOLID, style_designator: CIRCULAR, aperture_diameter: 2.900 INCHES NOMINAL2.900 INCHES NOMINAL IN, attachment_method: ROUND HOLEROUND HOLE, fabrication_method: SOLIDSOLID. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-134-1511, 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
3731-52-1
NSN: 5340-00-134-1511
NIINs: 001341511, 003293866, 005343287, 015665017
FSC: 5340 — Hardware, Commercial
CAGE: 74006 — RELIANCE COMM/TEC CORP LORAIN PRODUCTS DIV (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC OVERALL
constructionSOLIDSOLID
style_designatorCIRCULAR
aperture_diameter2.900 INCHES NOMINAL2.900 INCHES NOMINAL IN
attachment_methodROUND HOLEROUND HOLE
fabrication_methodSOLIDSOLID
fsc_application_dataACFT MODEL B52
cross-sectional_width0.400 INCHES NOMINAL0.400 INCHES NOMINAL IN
cross-sectional_height2.900 INCHES NOMINAL2.900 INCHES NOMINAL IN
attachment_hole_diameter0.187 INCHES NOMINAL0.187 INCHES NOMINAL IN
attachment_feature_quantity88
cross-sectional_shape_styleSPECIALSPECIAL
NSN5340-00-134-1511
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 3731-52-1 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
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 3731-52-1?
3731-52-1 is a FLOOR,AIRCRAFT.
What is the NSN for 3731-52-1?
3731-52-1 is cataloged in the U.S. Government catalog under NSN 5340-00-134-1511. 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.