The Buffer Solution,tris Phosphate, cataloged under National Stock Number 6550-01-507-7680, is classified within Federal Supply Class 6550 (In Vitro Diagnostic Substances, Reagents, Test Kits and Sets) of the Medical, Dental, and Veterinary Equipment group. The manufacturer of record is Sigma-Aldrich, Inc. Dba Sigma-Aldrich Sales, Inc. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 6550-01-507-7680 |
| Primary Part Number | 93302-100ML |
| Item Name | Buffer Solution,tris Phosphate |
| FSC / FSG | 6550 / 65 — In Vitro Diagnostic Substances, Reagents, Test Kits and Sets |
| Manufacturer | Sigma-Aldrich, Inc. Dba Sigma-Aldrich Sales, Inc |
| Status | ACTIVE |
| Primary Container Content Quantity | 100.000 MILLILITERS |
| Primary Container Type | BOTTLE |
| Usage Design | FOR MOLECULAR BIOLOGY |
| Total Primary Container Quantity | 1 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Hazardous per DLA record (HMIC Y) |
| Criticality Code | X |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| 93302-100ML PRIMARY | Sigma-Aldrich, Inc. Dba Sigma-Aldrich Sales, Inc (USA) |
| Reference | Meaning |
|---|---|
| 93302 | 5/9 Secondary reference China Sigma-Aldrich Inc Div Sigma-Aldrich Fine Chemicals |
| 6550NCM020066 | 5/1 Secondary reference Defense Medical Standardization Board |
| 03-0535 | 5/1 Secondary reference U.S. Government activity |
| EDTA | 5/1 Secondary reference China Sigma-Aldrich Inc Div Sigma-Aldrich Fine Chemicals |
NSN 6550-01-507-7680 is a Buffer Solution,tris Phosphate, manufactured by Sigma-Aldrich, Inc. Dba Sigma-Aldrich Sales, Inc, classified under FSC 6550, In Vitro Diagnostic Substances, Reagents, Test Kits and Sets. Status: active.
NSN 6550-01-507-7680 has 1 manufacturer part number on file: 93302-100ML (Sigma-Aldrich, Inc. Dba Sigma-Aldrich Sales, Inc).
2 possible matches (shared part number, not a government interchangeability claim): 5305-01-598-9279, 5995-01-643-9525. Verify interchangeability with system specifications before substitution.
Key specifications for 93302-100ML: Primary Container Content Quantity: 100.000 MILLILITERS; Primary Container Type: BOTTLE; Special Features: TE BUFFER SOLUTION, PH7.4; TRIS-EDTA; 100ML. BOTTLE; Part Name Assigned by Controlling Agency: BUFFER SOLUTION EDTA-TRIS PH7.4 100ML. 4 specifications are documented in the U.S. Government catalog.
Hazardous per DLA record (HMIC Y). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.