The Valve,check, cataloged under National Stock Number 4820-00-132-2002, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Ge Aviation Systems Llc Dba Ge Aviation Systems Llc. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Valve,check |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Ge Aviation Systems Llc Dba Ge Aviation Systems Llc (CAGE 05624); Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) (CAGE 59364) |
| Parameter | Value |
|---|---|
| NSN | 4820-00-132-2002 |
| Primary Part Number | CYLB-51475 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Ge Aviation Systems Llc Dba Ge Aviation Systems 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 |
|---|---|
| CYLB-51475 | Ge Aviation Systems Llc Dba Ge Aviation Systems Llc (USA) |
| 4A90174-101A | Ge Aviation Systems Llc Dba Ge Aviation Systems Llc (USA) |
| 4A90174-101A | Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) (USA) |
| Reference | Meaning |
|---|---|
| 4A90174 | D/9 Drawing number reference only U.S. Government activity |
| 4A90174-101A | 1/2 Source control — Government-approved source U.S. Government activity |
| 123616-1-1 | 5/9 Secondary reference Ontic Engineering & Manufacturing, Inc Dba Ontic Us |
| 123616-1-1 | 3/9 Design control — primary reference Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) |
| 123616-1-1 | 5/9 Secondary reference U.S. Government activity |
NSN 4820-00-132-2002 is a Valve,check, manufactured by Ge Aviation Systems Llc Dba Ge Aviation Systems Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-132-2002 has 3 manufacturer part numbers on file: CYLB-51475 (Ge Aviation Systems Llc Dba Ge Aviation Systems Llc), 4A90174-101A (Ge Aviation Systems Llc Dba Ge Aviation Systems Llc), 4A90174-101A (Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road)).
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.