The Parts Kit,valve, cataloged under National Stock Number 4820-01-458-6724, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-458-6724 |
| Primary Part Number | 6983521-5 |
| Item Name | Parts Kit,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Component Quantity | 11 |
| Nonsupply Items and Quantities | 91816 HV08-6-9045-700 RETAINING RING 1*91816 MS28774-023 BACKUP RING 1*91816 M83461/1-023 O-RING 1*91816 HV08-6-195BL BACKUP RING 2*91816 M83461/1-013 O-RING 2*91816 A1939L BACKUP RING 1*91816 M83461/1-010 O-RING 1*91816 HV08-6-12941L2 VALVE SEAT 1*91816 6983532 FACE SEAL W/BACKUP RING 1 |
| 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 |
|---|---|
| 6983521-5 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 6983521 | D/9 Drawing number reference only Naval Sea Systems Command |
| 4820PL1283145 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 17304 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4820-01-458-6724 is a Parts Kit,valve, manufactured by Naval Sea Systems Command, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-458-6724 has 1 manufacturer part number on file: 6983521-5 (Naval Sea Systems Command).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-458-7153. Verify interchangeability with system specifications before substitution.
Key specifications for 6983521-5: Component Quantity: 11; Nonsupply Items and Quantities: 91816 HV08-6-9045-700 RETAINING RING 1*91816 MS28774-023 BACKUP RING 1*91816 M83461/1-023 O-RING 1*91816 HV08-6-195BL BACKUP RING 2*91816 M83461/1-013 O-RING 2*91816 A1939L BACKUP RING 1*91816 M83461/1-010 O-RING 1*91816 HV08-6-12941L2 VALVE SEAT 1*91816 6983532 FACE SEAL W/BACKUP RING 1; Special Features: SHUTOFF VALVE REPAIR KIT; End Item Identification: LAUNCHER;CAGE 44114. 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.