The Valve Flapper,pump, cataloged under National Stock Number 4320-00-034-8301, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Itt Marlow a Unit of Itt Pumps and Compressors Div. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 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 | 4320-00-034-8301 |
| Primary Part Number | 15219-02 |
| Item Name | Valve Flapper,pump |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Itt Marlow a Unit of Itt Pumps and Compressors Div |
| Status | ACTIVE |
| Mounting Hole Quantity | 1 |
| Overall Diameter | 3.562 INCHES NOMINAL IN |
| Overall Thickness | 0.438 INCHES NOMINAL IN |
| Mounting Hole Diameter | 0.375 INCHES NOMINAL IN |
| Material | IRON CAST AND RUBBER SYNTHETIC |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 4320-00-034-8301 is a Valve Flapper,pump, manufactured by Itt Marlow a Unit of Itt Pumps and Compressors Div, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-00-034-8301 has 3 manufacturer part numbers on file: TP230L (Itt Marlow a Unit of Itt Pumps and Compressors Div), 15219-02 (Itt Marlow a Unit of Itt Pumps and Compressors Div), 8331644 (U S Army Tank Automotive Command Amsta-Im-Mm).
1 possible match (shared part number, not a government interchangeability claim): 5950-00-409-5527. Verify interchangeability with system specifications before substitution.
Key specifications for 15219-02: Mounting Hole Quantity: 1; Overall Diameter: 3.562 INCHES NOMINAL IN; Overall Thickness: 0.438 INCHES NOMINAL IN; Mounting Hole Diameter: 0.375 INCHES NOMINAL IN. 5 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.