PartsTable
Technical Data Sheet
MS51944-3 ✓ 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: 0.950 INCHES NOMINAL IN, overall_length: 1.300 INCHES NOMINAL IN, enameled_feature: NOT INCLUDED, special_features: OPTIONAL BUCKLE STYLE RDGB20. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-290-0837, 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
MS51944-3
NSN: 5340-00-290-0837
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_width0.950 INCHES NOMINAL IN
overall_length1.300 INCHES NOMINAL IN
enameled_featureNOT INCLUDED
special_featuresOPTIONAL BUCKLE STYLE RDGB20
buckle_style_designatorDOUBLE BAR-TONGUELESS
strap_accommodation_width0.770 INCHES NOMINAL IN
NSN5340-00-290-0837
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: MS51944-3 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
BUCKLE STYLE DESIGNATOR: DOUBLE BAR-TONGUELESS
ENAMELED FEATURE: NOT INCLUDED
STRAP ACCOMMODATION WIDTH: 0.770 INCHES NOMINAL IN
INSIGNIA: NOT INCLUDED
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL WIDTH0.950 INCHES NOMINAL IN
MATERIALCOPPER ALLOY OVERALL
BUCKLE STYLE DESIGNATORDOUBLE BAR-TONGUELESS
ENAMELED FEATURENOT INCLUDED
STRAP ACCOMMODATION WIDTH0.770 INCHES NOMINAL IN
SPECIAL FEATURESOPTIONAL BUCKLE STYLE RDGB20
INSIGNIANOT INCLUDED
OVERALL LENGTH1.300 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
MILB543TY2STYLE3CLASS3SIZE5-8Interchangeable
interchangeable cross-reference
interchangeable
MIL-B-543Interchangeable
interchangeable cross-reference
interchangeable
MS51944-9Interchangeable
interchangeable cross-reference
interchangeable
MS51944-10Interchangeable
interchangeable cross-reference
interchangeable
MS51944-5Interchangeable
interchangeable cross-reference
interchangeable
MS51927-5Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS51944-3?
MS51944-3 is a BUCKLE.
What parts can replace MS51944-3?
There are 14 known substitutes for MS51944-3: MILB543TY2STYLE3CLASS3SIZE5-8, MIL-B-543, MS51944-9 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS51944-3?
MS51944-3 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-290-0837. This indicates validated use in U.S. government and defense supply chains.
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