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831031 ITEM 11 — PACKING MATERIAL

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

831031 ITEM 11: PACKING MATERIAL.

The PACKING MATERIAL is a the manufacturer industrial component. Key specifications include material: ASBESTOS AND IRON ALLOY, fabrication_method: BRAIDED AND SOLID, cross-sectional_width: 0.250 INCHES NOMINAL IN, cross-sectional_height: 0.250 INCHES NOMINAL IN, cross-sectional_shape_style: SQUARE, nondefinitive_spec/std_data: L TYPE AND 2 CLASS AND 1111 SYMBOL. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-599-9546, 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
831031 ITEM 11
NSN: 5330-00-599-9546
FSC: 5330 — Packing and Gasket Materials
CAGE: 06546 — BEE LINE COMPANY (USA)
SPECIFICATIONS
materialASBESTOS AND IRON ALLOY
fabrication_methodBRAIDED AND SOLID
cross-sectional_width0.250 INCHES NOMINAL IN
cross-sectional_height0.250 INCHES NOMINAL IN
cross-sectional_shape_styleSQUARE
nondefinitive_spec/std_dataL TYPE AND 2 CLASS AND 1111 SYMBOL
NSN5330-00-599-9546
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 831031 ITEM 11 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: 0.250 INCHES NOMINAL IN
•
CROSS-SECTIONAL WIDTH: 0.250 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: SQUARE
•
NONDEFINITIVE SPEC/STD DATA: L TYPE AND 2 CLASS AND 1111 SYMBOL
•
MATERIAL: ASBESTOS AND IRON ALLOY
•
FABRICATION METHOD: BRAIDED AND SOLID
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.250 INCHES NOMINAL IN
CROSS-SECTIONAL WIDTH0.250 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLESQUARE
NONDEFINITIVE SPEC/STD DATAL TYPE AND 2 CLASS AND 1111 SYMBOL
MATERIALASBESTOS AND IRON ALLOY
FABRICATION METHODBRAIDED AND SOLID
SUBSTITUTES & CROSS-REFERENCES 9
86740PC12Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
187I-1/4IN LBReference document
Same NSN cross-reference
Reference document — Secondary reference
C80009Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
800330Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
MILP17303CL2TYE SYM1111 .31THKReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
3652XW2INPKReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
HAZMAT per U.S. Government catalogNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 831031 ITEM 11?
831031 ITEM 11 is a PACKING MATERIAL.
What parts can replace 831031 ITEM 11?
There are 9 known substitutes for 831031 ITEM 11: 86740PC12, 187I-1/4IN LB, C80009 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 831031 ITEM 11?
831031 ITEM 11 is cataloged in the U.S. Government catalog under NSN 5330-00-599-9546. 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.