The Valve,safety Relief, cataloged under National Stock Number 4820-01-547-7201, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Fairbanks Morse, Llc. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-547-7201 |
| Primary Part Number | ZZAUT004B1B |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Fairbanks Morse, Llc |
| 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 |
| Part Number | Manufacturer |
|---|---|
| ZZAUT004B1B | Everllence France (FRA) |
| B/M P12619563 ITEM 15 | Fairbanks Morse, Llc (USA) |
| ZZAUT004B1B PRIMARY | Fairbanks Morse, Llc (USA) |
| Reference | Meaning |
|---|---|
| ZZAUT004B1B | 3/9 Design control — primary reference U.S. Government activity |
| B/M P12619563 ITEM 15 | 5/9 Secondary reference U.S. Government activity |
| P12619563 | D/9 Drawing number reference only U.S. Government activity |
NSN 4820-01-547-7201 is a Valve,safety Relief, manufactured by Fairbanks Morse, Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-547-7201 has 3 manufacturer part numbers on file: ZZAUT004B1B (Everllence France), B/M P12619563 ITEM 15 (Fairbanks Morse, Llc), ZZAUT004B1B (Fairbanks Morse, Llc).
3 possible matches (shared part number, not a government interchangeability claim): 4820-01-547-7206, 4820-01-547-7214, 4820-01-547-7219. Verify interchangeability with system specifications before substitution.
Key specifications for ZZAUT004B1B: Part Name Assigned by Controlling Agency: VALVE, QUICK RELEASE; End Item Identification: PNEUMATIC CONTROL BOX ASSEMBLY; LPD-17. 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.