Specification Brand : Generic BulletPoint1 : Needle System: UY154GAS / 151X21 / SY1431 BulletPoint2 : Curved Industrial Overlock Sewing Machine Needles BulletPoint3 : A: 2.02 (shank diameter) / D: 31.60 (Butt to eye length) / N: 14.50 (length of shank) BulletPoint4 : Included per order per size is 10 Needles Color : Chrome CompatibleDevices : Domestic Sewing Machine ExternallyAssignedProductIdentifier1 : 0789548478310 ExternallyAssignedProductIdentifier2 : 789548478310 ItemName : Needle It Up with 10 Organ UY154GAS / 151X21 / SY1431 Curved Overlock Sewing Machines - Size - 032/12 (10) ItemTypeKeyword : sewing-machine-needles Manufacturer : Organ ModelName : Needle ModelNumber : 10 NumberOfItems : 1 PartNumber : ORG-UY154GAS ProductDescription : UY154GAS / 151X21 / SY1431 (Size - 032/12) - Curved Industrial Sewing Machine Needles for the UNION SPECIAL 39500 OVERLOCK. The system or style of this needle Is: UY154 or 154G. This needle fits the following machines: Pegasus: E- 256, Singer: 990B, 991B, 993BX, Union Special: 39500, 39600 The Needle Shank Is Flat On One Side Only. The Flat Spot Helps To Position The Needle Properly.Style 154G Shank Flat One Side Is Generally Used For 3 Thread Overlock Machines With Only One Needle.The Mock Safety Stitch 4 Thread And Safety Stitch 5 Thread Machines With Two Needles Use The Same 154G Needle BUT With The SHANK Flat On BOTH Sides. (Style 154GDS)This SYSTEM 154G (Shank Flat On One Side) 18Sewing Machine Manufacturers Use Different Numbers For The Same Exact Needle Style. This Listed Style - 154G Is Also Sold Under These Numbers:151X21 SY1431 SY1433 UOX154 UY154GAS UY154GHS UYX154GAS - Included per order per size is 10 Needles ProductSiteLaunchDate : 2022-08-26T07:13:30.314Z UnitCount : 10 UnspscCode : 60120000 WarrantyDescription : Manufacturer warranty for 30 days from date of purchase