The Valve,check, cataloged under National Stock Number 4820-01-455-1868, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is North American Controls Inc Dba North American Controls Inc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-455-1868 |
| Primary Part Number | 10666 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | North American Controls Inc Dba North American Controls 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 |
|---|---|
| 10666 PRIMARY | North American Controls Inc Dba North American Controls Inc (USA) |
| Reference | Meaning |
|---|---|
| 10660 ILS | D/9 Drawing number reference only North American Controls Inc Dba North American Controls Inc |
NSN 4820-01-455-1868 is a Valve,check, manufactured by North American Controls Inc Dba North American Controls Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-455-1868 has 1 manufacturer part number on file: 10666 (North American Controls Inc Dba North American Controls Inc).
2 possible matches (shared part number, not a government interchangeability claim): 6545-01-572-4201, 2910-01-672-5193. Verify interchangeability with system specifications before substitution.
Key specifications for 10666: Special Features: O/ALL LG 1.40 IN.; HEAD, 0.31 IN. LG IN; End Item Identification: STEERING MANIFOLD. 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.