The Sensitivity Discs,diagnostic, cataloged under National Stock Number 6550-01-139-7512, 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 Becton, Dickinson and Company Dba Becton Dickinson & Co. Government technical data includes 7 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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: PG.
| Parameter | Value |
|---|---|
| NSN | 6550-01-139-7512 |
| Primary Part Number | 231539 |
| Item Name | Sensitivity Discs,diagnostic |
| FSC / FSG | 6550 / 65 — In Vitro Diagnostic Substances, Reagents, Test Kits and Sets |
| Manufacturer | Becton, Dickinson and Company Dba Becton Dickinson & Co |
| Status | ACTIVE |
| Composition Ingredients | SULFAMETHOXAZOLE AND TRIMETHOPRIM |
| Active Ingredients Per Unit | 25.0000 MICROGRAMS PER DISK |
| Primary Container Content Quantity | 50.000 DISK |
| Primary Container Type | TUBE, DISPENSING |
| Protective Storage Feature | REQUIRES REFRIGERATION STORAGE BETWEEN 2 TO 8 DEG CELSIUS |
| Material | PAPER |
| Total Primary Container Quantity | 10 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Unit of Issue | PG |
| Part Number | Manufacturer |
|---|---|
| 231539 PRIMARY | Becton, Dickinson and Company Dba Becton Dickinson & Co (USA) |
| Reference | Meaning |
|---|---|
| BB31539 | 5/9 Secondary reference Vwr International Inc Dba Vwr Scientific |
| 31539 | 5/9 Secondary reference Becton-Dickinson and Co Microbiology Systems Div |
| BB4331539 | 5/9 Secondary reference Vwr International Inc Dba Vwr Scientific |
NSN 6550-01-139-7512 is a Sensitivity Discs,diagnostic, manufactured by Becton, Dickinson and Company Dba Becton Dickinson & Co, classified under FSC 6550, In Vitro Diagnostic Substances, Reagents, Test Kits and Sets. Status: active.
NSN 6550-01-139-7512 has 1 manufacturer part number on file: 231539 (Becton, Dickinson and Company Dba Becton Dickinson & Co).
2 possible matches (shared part number, not a government interchangeability claim): 5315-01-398-6469, 6550-01-555-0968. Verify interchangeability with system specifications before substitution.
Key specifications for 231539: Composition Ingredients: SULFAMETHOXAZOLE AND TRIMETHOPRIM; Active Ingredients Per Unit: 25.0000 MICROGRAMS PER DISK; Primary Container Content Quantity: 50.000 DISK; Primary Container Type: TUBE, DISPENSING. 7 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.