The Valve,check, cataloged under National Stock Number 4820-01-507-3453, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Aero Technical Components, Inc. Dba Aero Technical Components Corp. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-507-3453 |
| Primary Part Number | 12769-2 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Aero Technical Components, Inc. Dba Aero Technical Components Corp |
| 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 |
|---|---|
| 12769-2 PRIMARY | Aero Technical Components, Inc. Dba Aero Technical Components Corp (USA) |
| Reference | Meaning |
|---|---|
| 12769-2 | 5/9 Secondary reference Gse Holdings Inc. Dba Itw Military Gse Div Hobart Ground Systems |
| 12769-2 | C/1 Advisory reference — outside the item-of-supply concept Itw Gse Inc. |
NSN 4820-01-507-3453 is a Valve,check, manufactured by Aero Technical Components, Inc. Dba Aero Technical Components Corp, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-507-3453 has 1 manufacturer part number on file: 12769-2 (Aero Technical Components, Inc. Dba Aero Technical Components Corp).
1 possible match (shared part number, not a government interchangeability claim): 8470-01-560-3052. Verify interchangeability with system specifications before substitution.
Key specifications for 12769-2: End Item Identification: F/A-22 RAPTOR ACFT.. 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.