The Disk,valve, cataloged under National Stock Number 4820-01-507-9352, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Apco/valve & Primer Corp. Government technical data includes 3 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-507-9352 |
| Primary Part Number | 1700159 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Apco/valve & Primer Corp |
| Status | ACTIVE |
| Style Designator | SOLID |
| Media for Which Designed | GAS OR WATER |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR |
| 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 |
|---|---|
| 1700159 PRIMARY | Apco/valve & Primer Corp (USA) |
| Reference | Meaning |
|---|---|
| S-100 | D/9 Drawing number reference only Apco/valve & Primer Corp |
| S-100-4IN DET. 10 | 5/9 Secondary reference Apco/valve & Primer Corp |
| 104-10 | 5/9 Secondary reference Apco/valve & Primer Corp |
NSN 4820-01-507-9352 is a Disk,valve, manufactured by Apco/valve & Primer Corp, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-507-9352 has 1 manufacturer part number on file: 1700159 (Apco/valve & Primer Corp).
Key specifications for 1700159: Style Designator: SOLID; Special Features: PART NAME ASSIGNED BY CONTROLLING AGENCY; RUBBER FLAPPER; Media for Which Designed: GAS OR WATER; End Item Identification: 4 INCH SWING CHECK VALVE IN. 3 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.