The Retainer,disk,valve, cataloged under National Stock Number 4820-01-491-0599, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Lexair Inc. The record lists 2 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Retainer,disk,valve |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Lexair Inc (CAGE 56607); Ja Moody Llc (CAGE 3B558) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-491-0599 |
| Primary Part Number | 109-247-100-360-000 |
| Item Name | Retainer,disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Lexair 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 |
| Part Number | Manufacturer |
|---|---|
| 109-247-100-360-000 PRIMARY | Lexair Inc (USA) |
| 109-247-100-360-000 | Ja Moody Llc (USA) |
| Reference | Meaning |
|---|---|
| D362-10-512 ITEM 18 | 5/9 Secondary reference Emerson Automation Solutions Final Control Us Lp |
| 109-247-100-360-000 | 3/9 Design control — primary reference Emerson Automation Solutions Final Control Us Lp |
| D362-10-512 | D/9 Drawing number reference only Emerson Automation Solutions Final Control Us Lp |
NSN 4820-01-491-0599 is a Retainer,disk,valve, manufactured by Lexair Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-491-0599 has 2 manufacturer part numbers on file: 109-247-100-360-000 (Lexair Inc), 109-247-100-360-000 (Ja Moody Llc).
2 possible matches (shared part number, not a government interchangeability claim): 4820-01-491-0605, 4820-01-491-3422. Verify interchangeability with system specifications before substitution.
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.