The Valve,check, cataloged under National Stock Number 4820-01-511-5491, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Hamilton Sundstrand Corporation Dba Collins Aerospace. The record lists 5 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-511-5491 |
| Primary Part Number | NV822168-1 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Hamilton Sundstrand Corporation Dba Collins Aerospace |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| S9515-AL-MMA-010 7-36 ITEM 9 | Naval Sea Systems Command (USA) |
| NV822203 FIND 28 | Hamilton Sundstrand Corporation Dba Collins Aerospace (USA) |
| NV822168-1 PRIMARY | Hamilton Sundstrand Corporation Dba Collins Aerospace (USA) |
| NV822201 FIND 26 | Hamilton Sundstrand Corporation Dba Collins Aerospace (USA) |
| S9515-AL-MMA-010 7-28 ITEM 5 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| NV822201 | D/9 Drawing number reference only Hamilton Sundstrand Corporation Dba Collins Aerospace |
| S9515-AL-MMA-010 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 4820-01-511-5491 is a Valve,check, manufactured by Hamilton Sundstrand Corporation Dba Collins Aerospace, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-511-5491 has 5 manufacturer part numbers on file: S9515-AL-MMA-010 7-36 ITEM 9 (Naval Sea Systems Command), NV822203 FIND 28 (Hamilton Sundstrand Corporation Dba Collins Aerospace), NV822168-1 (Hamilton Sundstrand Corporation Dba Collins Aerospace), NV822201 FIND 26 (Hamilton Sundstrand Corporation Dba Collins Aerospace), S9515-AL-MMA-010 7-28 ITEM 5 (Naval Sea Systems Command).
Key specifications for NV822168-1: Part Name Assigned by Controlling Agency: VALVE AND ADAPTER ASSEMBLY; End Item Identification: VIRGINIA CLASS SUBMARINE. 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 4820-01-511-5491 has DEMIL Code D. 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.