The Valve,safety Relief, cataloged under National Stock Number 4820-01-573-7501, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Bahr Machine Company Inc Dba Bahr Machine Co. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-573-7501 |
| Primary Part Number | 11010-6MS |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Bahr Machine Company Inc Dba Bahr Machine Co |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 11010-6MS PRIMARY | Bahr Machine Company Inc Dba Bahr Machine Co (USA) |
| Reference | Meaning |
|---|---|
| 72120-01 | 5/2 Secondary reference U.S. Government activity |
NSN 4820-01-573-7501 is a Valve,safety Relief, manufactured by Bahr Machine Company Inc Dba Bahr Machine Co, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-573-7501 has 1 manufacturer part number on file: 11010-6MS (Bahr Machine Company Inc Dba Bahr Machine Co).
Key specifications for 11010-6MS: Part Name Assigned by Controlling Agency: RELIEF VALVE; End Item Identification: KC-135 AIRCRAFT. 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.
NSN 4820-01-573-7501 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.