The Cover,valve Topworks, cataloged under National Stock Number 4820-01-425-8092, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Dover Resources, Inc. Div Norriseal. 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-425-8092 |
| Primary Part Number | 52715A029 |
| Item Name | Cover,valve Topworks |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Dover Resources, Inc. Div Norriseal |
| Status | ACTIVE |
| General Characteristics Item Description | FITS SIZE 10IN THRU 12IN IN |
| Material | PLASTIC |
| 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 |
|---|---|
| 52715A029 PRIMARY | Dover Resources, Inc. Div Norriseal (USA) |
| 980-012 IT16 PRIMARY | Dover Resources, Inc. Div Norriseal (USA) |
| Reference | Meaning |
|---|---|
| 52715A029 | 5/9 Secondary reference Cooper Cameron Corp Cooper Cameron Valves Div |
| 980-012 IT16 | 5/9 Secondary reference U.S. Government activity |
| 980-012 | D/9 Drawing number reference only U.S. Government activity |
| 52715A029 | 5/9 Secondary reference U.S. Government activity |
NSN 4820-01-425-8092 is a Cover,valve Topworks, manufactured by Dover Resources, Inc. Div Norriseal, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-425-8092 has 2 manufacturer part numbers on file: 52715A029 (Dover Resources, Inc. Div Norriseal), 980-012 IT16 (Dover Resources, Inc. Div Norriseal).
2 possible matches (shared part number, not a government interchangeability claim): 1730-01-667-5102, 3940-01-671-7117. Verify interchangeability with system specifications before substitution.
Key specifications for 52715A029: General Characteristics Item Description: FITS SIZE 10IN THRU 12IN IN; End Item Identification: NORRIS VALVE 10IN MODEL M3011-222A-1J; STRATEGIC SEALIFT CONVERSION SHIPS CLASS A; Material: PLASTIC. 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.