The Test Pack,blood Gas and Electrol, cataloged under National Stock Number 6550-01-334-4358, 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 Werfen Usa Llc. Government technical data includes 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 6550-01-334-4358 |
| Primary Part Number | 4301 |
| Item Name | Test Pack,blood Gas and Electrol |
| FSC / FSG | 6550 / 65 — In Vitro Diagnostic Substances, Reagents, Test Kits and Sets |
| Manufacturer | Werfen Usa Llc |
| Status | ACTIVE |
| Component Quantity | 5 |
| Supplementary Features | D-DAY ITEM FOR DOD |
| 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 |
|---|---|
| 4301 PRIMARY | Werfen Usa Llc (USA) |
| Reference | Meaning |
|---|---|
| 91-0535 | 5/1 Secondary reference U.S. Government activity |
| GEM-STAT PAK | 5/1 Secondary reference Werfen Usa Llc |
NSN 6550-01-334-4358 is a Test Pack,blood Gas and Electrol, manufactured by Werfen Usa Llc, classified under FSC 6550, In Vitro Diagnostic Substances, Reagents, Test Kits and Sets. Status: active.
NSN 6550-01-334-4358 has 1 manufacturer part number on file: 4301 (Werfen Usa Llc).
1 possible match (shared part number, not a government interchangeability claim): 4540-01-470-1396. Verify interchangeability with system specifications before substitution.
Key specifications for 4301: Component Quantity: 5; Supplementary Features: D-DAY ITEM FOR DOD; Special Features: DISPOSABLE AND SELF-CONTAINED. CONTAINS THE FOLLOWING ELECTRODES: PH, PO2, PCO2, HCT, NA, K, CA, HCT HI AND HCT LO, AND REF. CONTAINS ALL NECCESSARY GASES, CALIBRATING SOLUTIONS, AND A WASTE BAG FOR PROCESSED BLOOD AND REAGENTS. FOR USE WITH BLOOD GAS ANALYZER 6630-01-334-4058 AND 6630-01-364-8555. UNIT PKG QUANTITY: 4 EA TEST PACKS.; Part Name Assigned by Controlling Agency: TEST PACK BLD GAS&ELECTROLYTES DETERMINATION 4S U/W6630013344058. 2 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.