National Stock Number
6550-01-212-1280
National Stock Number (NSN) 6550-01-212-1280, or NIIN 012121280, (buffer solution,tris phosphate) was assigned July 6, 1985 in the Federal Logistics Information System (FLIS). This NSN does not replace any other NSNs.
There is only one manufacturer part number associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by one supplier. Today, one supplier is listed as an Active supplier for this NSN. Of the active suppliers, only one supplier is deemed design controlled or valid supply parts.
This part number has not been procured by the US Government in over 5 years.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Apr 02, 1991, this NSN's acquisition method was noted as: Not established. Not established.
This NSN is assigned to Item Name Code (INC) 37395. [A MIXTURE FORMULATED TO A SPECIFIC PH BY THE ADDITION OF PHOSPHORIC ACID TO A BUFFER. IT IS USED SPECIFICALLY IN QUALITY CONTROL PROCEDURES FOR THE PH MEASUREMENT OF BLOOD.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no information in the HMIRS; however, the NSN is in an FSC in Table II of Federal Standard 313 and an MSDS may be required by the user. The requirement for an MSDS is dependent on a hazard determination of the supplier or the intended end use of the product. NSN 6550012121280 does not contain precious metals.
This information was last updated on Jul 01, 2025.