The Valve,check, cataloged under National Stock Number 4820-01-102-3924, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Airborne Technologies, Inc.. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-102-3924 |
| Primary Part Number | 72585 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Airborne Technologies, Inc. |
| Status | ACTIVE |
| Style Designator | STRAIGHT THRU FLANGED ENDS |
| Face to Face Distance | 1.250 INCHES IN |
| 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 |
|---|---|
| A51H9030-1 | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems (USA) |
| 72585 PRIMARY | Airborne Technologies, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 72585 | 3/2 Design control — primary reference U.S. Government activity |
| 3C3312 | 3/2 Design control — primary reference U.S. Government activity |
| A51H9030-1 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
NSN 4820-01-102-3924 is a Valve,check, manufactured by Airborne Technologies, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-102-3924 has 2 manufacturer part numbers on file: A51H9030-1 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems), 72585 (Airborne Technologies, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 5330-01-426-7101. Verify interchangeability with system specifications before substitution.
Key specifications for 72585: Style Designator: STRAIGHT THRU FLANGED ENDS; Face to Face Distance: 1.250 INCHES IN. 2 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.