The Valve,ball,oxygen Generator Port, cataloged under National Stock Number 6515-01-513-6902, is classified within Federal Supply Class 6515 (Medical and Surgical Instruments, Equipment, and Supplies) of the Medical, Dental, and Veterinary Equipment group. The manufacturer of record is On Site Gas Systems Inc. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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: EA.
| Parameter | Value |
|---|---|
| NSN | 6515-01-513-6902 |
| Primary Part Number | 33325K21 |
| Item Name | Valve,ball,oxygen Generator Port |
| FSC / FSG | 6515 / 65 — Medical and Surgical Instruments, Equipment, and Supplies |
| Manufacturer | On Site Gas Systems Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| 33325K21 PRIMARY | On Site Gas Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| 03-1813 | 5/1 Secondary reference U.S. Government activity |
| 6515NCM031518 | 5/1 Secondary reference Defense Medical Standardization Board |
NSN 6515-01-513-6902 is a Valve,ball,oxygen Generator Port, manufactured by On Site Gas Systems Inc, classified under FSC 6515, Medical and Surgical Instruments, Equipment, and Supplies. Status: active.
NSN 6515-01-513-6902 has 1 manufacturer part number on file: 33325K21 (On Site Gas Systems Inc).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-628-0444. Verify interchangeability with system specifications before substitution.
Key specifications for 33325K21: Special Features: BALL VALVE 1/4 (POGS 33); Part Name Assigned by Controlling Agency: VALVE BALL 1/4 OXYGEN GENERATOR PORTABLE (POGS 33); End Item Identification: FOR USE WITH NSN 6515-01-505-0203, OXYGEN GENERATOR SYSTEM, PORTABLE. 0 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). 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.