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11B5091901 — GASKET

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

11B5091901: GASKET.

The GASKET is a the manufacturer industrial component. Key specifications include overall_width: 1.86 INCHES NOMINAL IN, end_cut_length: 80.50 INCHES NOMINAL IN, overall_length: 79.38 INCHES NOMINAL IN, cross-sectional_height: 1.86 INCHES NOMINAL IN, end_item_identification: 4940-01-680-2383, cross-sectional_thickness: 1.00 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-703-1285, 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
11B5091901
NSN: 5330-01-703-1285
NIINs: 017031285, 017031300
FSC: 5330 — Packing and Gasket Materials
CAGE: 5B5M3 — DEVCOM CHEMICAL BIOLOGICAL CENTER DBA CHEMICAL BIOLOGICAL CENTER DIV U.S. DEPT OF ARMY (USA)
SPECIFICATIONS
overall_width1.86 INCHES NOMINAL IN
end_cut_length80.50 INCHES NOMINAL IN
overall_length79.38 INCHES NOMINAL IN
cross-sectional_height1.86 INCHES NOMINAL IN
end_item_identification4940-01-680-2383
cross-sectional_thickness1.00 INCHES NOMINAL IN
part_name_assigned_by_controlling_agencyWALL AND CEILING GASKET, MODIFIED
NSN5330-01-703-1285
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 11B5091901 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
•
END CUT LENGTH: 80.50 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
END CUT LENGTH80.50 INCHES NOMINAL IN
OVERALL WIDTH1.86 INCHES NOMINAL IN
PART NAME ASSIGNED BY CONTROLLING AGENCYWALL AND CEILING GASKET,EXPANDABLE CEILING ASM
END ITEM IDENTIFICATION4940-01-680-2383
SUBSTITUTES & CROSS-REFERENCES 1
11B5091901-2Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
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 11B5091901?
11B5091901 is a GASKET.
What parts can replace 11B5091901?
There is 1 known substitute for 11B5091901: 11B5091901-2. Substitute compatibility should be verified for your specific system.
What is the NSN for 11B5091901?
11B5091901 is cataloged in the U.S. Government catalog under NSN 5330-01-703-1285. 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.