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Technical Data Sheet
PartsTable / COMPONENT / 8811991PC1
8811991PC1 ✓ Verified by PartsTable
— · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The RUBBER STRIP is a the manufacturer industrial component. Key specifications include length: 100.000 INCHES NOMINAL IN, material: RUBBER SYNTHETIC, surface_condition: SMOOTH BOTH SIDES, cross-sectional_height: 0.344 INCHES NOMINAL IN, cross_section_outside_diameter: 0.250 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-025-0473, 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
8811991PC1
NSN: 5330-00-025-0473
FSC: 5330
CAGE: 49671 — LOCKHEED MARTIN CORPORATION DBA LOCKHEED MARTIN DIV LOCKHEED MARTIN (USA)
SPECIFICATIONS
length100.000 INCHES NOMINAL IN
materialRUBBER SYNTHETIC
surface_conditionSMOOTH BOTH SIDES
cross-sectional_height0.344 INCHES NOMINAL IN
cross-sectional_shape_styleD
cross_section_outside_diameter0.250 INCHES NOMINAL IN
NSN5330-00-025-0473
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 8811991PC1 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 SECTION OUTSIDE DIAMETER: 0.250 INCHES NOMINAL IN
•
MATERIAL: RUBBER SYNTHETIC
•
CROSS-SECTIONAL HEIGHT: 0.344 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: D
•
SURFACE CONDITION: SMOOTH BOTH SIDES
•
LENGTH: 100.000 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
CROSS SECTION OUTSIDE DIAMETER0.250 INCHES NOMINAL IN
MATERIALRUBBER SYNTHETIC
CROSS-SECTIONAL HEIGHT0.344 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLED
SURFACE CONDITIONSMOOTH BOTH SIDES
LENGTH100.000 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 2
1054826PC1Interchangeable
Same NIIN cross-reference
interchangeable
MILR900Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 8811991PC1?
8811991PC1 is a RUBBER STRIP.
What parts can replace 8811991PC1?
There are 2 known substitutes for 8811991PC1: 1054826PC1, MILR900. Substitute compatibility should be verified for your specific system.
What is the NSN for 8811991PC1?
8811991PC1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-025-0473. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026