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LO1399 — GASKET

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

LO1399: GASKET.

The GASKET is a the manufacturer industrial component. Key specifications include material: RUBBER CHLOROPRENE CLASS CR OVERALL, overall_width: 0.350 INCHES MINIMUM AND 0.410 INCHES MAXIMUM IN, overall_length: 2.440 INCHES MINIMUM AND 2.560 INCHES MAXIMUM IN, special_features: ITEM MUST COMPLY WITH REQUIREMENTS OF DEFENSE SUPPLY CENTER COLUMBUS PRODUCTION STANDARD NO. LO1399, style_designator: RECTANGULAR, special_test_features: SPECIAL QUALITY CONTROL TESTING.

This part is cataloged in the U.S. Government catalog under NSN 5330-01-295-1082, 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
LO1399
NSN: 5330-01-295-1082
FSC: 5330 — Packing and Gasket Materials
CAGE: 16236 — DLA LAND AND MARITIME DBA ENGINEERING AND TECHNICAL SUPPORT DIV DOCUMENT STANDARDIZATION DIVISION (VENDOR ITEM DRAWINGS) (USA)
SPECIFICATIONS
materialRUBBER CHLOROPRENE CLASS CR OVERALL
overall_width0.350 INCHES MINIMUM AND 0.410 INCHES MAXIMUM IN
overall_length2.440 INCHES MINIMUM AND 2.560 INCHES MAXIMUM IN
special_featuresITEM MUST COMPLY WITH REQUIREMENTS OF DEFENSE SUPPLY CENTER COLUMBUS PRODUCTION STANDARD NO. LO1399
style_designatorRECTANGULAR
special_test_featuresSPECIAL QUALITY CONTROL TESTING
cross-sectional_thickness0.125 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
criticality_code_justificationZZZY
material_document_and_classificationMIL-R-6130,TYPE 2,GRADE A,SOFT MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
reference_number_differentiating_characteristicsREFERENCE NUMBER DIFFERENTIATING MATERIAL WILL BE IN ACCORDANCE WITH NAVAL INVENTORY CONTROL POINT ACTIVITY HX QUALITY CONTROL. MANUFACTURING AND TESTING SPECIFICATIONS AVAILABLE AT THE DLA ICP
NSN5330-01-295-1082
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: LO1399 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 THICKNESS: 0.125 INCHES NOMINAL IN
•
SPECIAL TEST FEATURES: SPECIAL QUALITY CONTROL TESTING
•
CRITICALITY CODE JUSTIFICATION: ZZZY
•
STYLE DESIGNATOR: RECTANGULAR
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-R-6130,TYPE 2,GRADE A,SOFT MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.125 INCHES NOMINAL IN
SPECIAL TEST FEATURESSPECIAL QUALITY CONTROL TESTING
CRITICALITY CODE JUSTIFICATIONZZZY
STYLE DESIGNATORRECTANGULAR
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-6130,TYPE 2,GRADE A,SOFT MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
OVERALL LENGTH2.440 INCHES MINIMUM AND 2.560 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
OVERALL WIDTH0.350 INCHES MINIMUM AND 0.410 INCHES MAXIMUM IN
SPECIAL FEATURESITEM MUST COMPLY WITH REQUIREMENTS OF DEFENSE SUPPLY CENTER COLUMBUS PRODUCTION STANDARD NO. LO1399
TEST DATA DOCUMENT81349-MIL-P-23199 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
OTHER ITEMS IN FSC 5330 — Packing and Gasket Materials
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5330-00-000-0085 5330-00-000-0167 5330-00-000-5275 5330-00-001-1260 5330-00-001-1833 5330-00-001-1844 5330-00-001-1845 5330-00-001-1846
SUBSTITUTES & CROSS-REFERENCES 4
128373-2Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LL-HQ6-1226Reference document
Same NSN cross-reference
Reference document — Secondary reference
PO012951082Reference document
Same NSN cross-reference
Reference document — Secondary reference
PO0029NRPReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Shelf-life managedAcquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is LO1399?
LO1399 is a GASKET.
What parts can replace LO1399?
There are 4 known substitutes for LO1399: 128373-2, LL-HQ6-1226, PO012951082 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for LO1399?
LO1399 is cataloged in the U.S. Government catalog under NSN 5330-01-295-1082. 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.