The Valve,check, cataloged under National Stock Number 4820-01-453-9049, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Chemetron Fire Systems. Government technical data includes 4 specifications, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-453-9049 |
| Primary Part Number | 70610009 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Chemetron Fire Systems |
| Status | ACTIVE |
| Style Designator | STRAIGHT THRU |
| Media for Which Designed | WATER, FRESH SECOND RESPONSE |
| Media for Which Designed | STEAM FIRST RESPONSE |
| Valve Operation Method | MANUAL |
| 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 |
|---|---|
| 70610009 PRIMARY | Chemetron Fire Systems (USA) |
| Reference | Meaning |
|---|---|
| 7-061-0009 | C/1 Advisory reference — outside the item-of-supply concept Badger Fire Protection Inc |
NSN 4820-01-453-9049 is a Valve,check, manufactured by Chemetron Fire Systems, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-453-9049 has 1 manufacturer part number on file: 70610009 (Chemetron Fire Systems).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-561-7297. Verify interchangeability with system specifications before substitution.
Key specifications for 70610009: Style Designator: STRAIGHT THRU; Media for Which Designed: WATER, FRESH SECOND RESPONSE; Media for Which Designed: STEAM FIRST RESPONSE; End Item Identification: STRATEGIC SEALIFT CONVERSION SHIPS CLASS. 4 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.