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Technical Data Sheet
PartsTable / COMPONENT / MS51944-6
MS51944-6 ✓ 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 BUCKLE is a the manufacturer industrial component. Key specifications include insignia: NOT INCLUDED, material: COPPER ALLOY OVERALL, overall_width: 2.380 INCHES NOMINAL IN, overall_length: 2.600 INCHES NOMINAL IN, enameled_feature: NOT INCLUDED, special_features: OPTIONAL BUCKLE STYLE RDGB20. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-290-0967, 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
MS51944-6
NSN: 5340-00-290-0967
FSC: 5340
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
insigniaNOT INCLUDED
materialCOPPER ALLOY OVERALL
overall_width2.380 INCHES NOMINAL IN
overall_length2.600 INCHES NOMINAL IN
enameled_featureNOT INCLUDED
special_featuresOPTIONAL BUCKLE STYLE RDGB20
buckle_style_designatorDOUBLE BAR-TONGUELESS
strap_accommodation_width2.060 INCHES NOMINAL IN
NSN5340-00-290-0967
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: MS51944-6 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
•
MATERIAL: COPPER ALLOY OVERALL
•
STRAP ACCOMMODATION WIDTH: 2.060 INCHES NOMINAL IN
•
ENAMELED FEATURE: NOT INCLUDED
•
INSIGNIA: NOT INCLUDED
•
BUCKLE STYLE DESIGNATOR: DOUBLE BAR-TONGUELESS
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL LENGTH2.600 INCHES NOMINAL IN
OVERALL WIDTH2.380 INCHES NOMINAL IN
MATERIALCOPPER ALLOY OVERALL
STRAP ACCOMMODATION WIDTH2.060 INCHES NOMINAL IN
ENAMELED FEATURENOT INCLUDED
INSIGNIANOT INCLUDED
SPECIAL FEATURESOPTIONAL BUCKLE STYLE RDGB20
BUCKLE STYLE DESIGNATORDOUBLE BAR-TONGUELESS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
MILB543TY2STYLE3CLASS3SIZE5-8Interchangeable
interchangeable cross-reference
interchangeable
MIL-B-543Interchangeable
interchangeable cross-reference
interchangeable
MS51944-3Interchangeable
interchangeable cross-reference
interchangeable
MS51944-9Interchangeable
interchangeable cross-reference
interchangeable
MS51944-10Interchangeable
interchangeable cross-reference
interchangeable
MS51944-5Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS51944-6?
MS51944-6 is a BUCKLE.
What parts can replace MS51944-6?
There are 13 known substitutes for MS51944-6: MILB543TY2STYLE3CLASS3SIZE5-8, MIL-B-543, MS51944-3 and 10 more. Substitute compatibility should be verified for your specific system.
Is MS51944-6 still available?
MS51944-6 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026