The Stopple Assy,pressu, cataloged under National Stock Number 4920-00-936-3221, is classified within Federal Supply Class 4920 (Aircraft Maintenance and Repair Shop Specialized Equipment) of the Maintenance and Repair Shop Equipment group. The manufacturer of record is Ambac International Corporation Div Ambac International. The record lists 2 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.
| Item Name | Stopple Assy,pressu |
| FSC / FSG | 4920 — Aircraft Maintenance and Repair Shop Specialized Equipment (FSG 49) |
| Manufacturers | Ambac International Corporation Div Ambac International (CAGE 01843); Turbo Diesel & Electric Systems Inc (CAGE 1XDQ9) |
| Parameter | Value |
|---|---|
| NSN | 4920-00-936-3221 |
| Primary Part Number | FU202572-4 |
| Item Name | Stopple Assy,pressu |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| Manufacturer | Ambac International Corporation Div Ambac International |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| FU202572-4 PRIMARY | Ambac International Corporation Div Ambac International (USA) |
| FU202572-4 | Turbo Diesel & Electric Systems Inc (USA) |
NSN 4920-00-936-3221 is a Stopple Assy,pressu, manufactured by Ambac International Corporation Div Ambac International, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
NSN 4920-00-936-3221 has 2 manufacturer part numbers on file: FU202572-4 (Ambac International Corporation Div Ambac International), FU202572-4 (Turbo Diesel & Electric Systems Inc).
1 possible match (shared part number, not a government interchangeability claim): 1650-01-293-3041. Verify interchangeability with system specifications before substitution.
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.