The Valve,plug, cataloged under National Stock Number 4820-01-017-9355, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is R & M Energy Systems Tomball P. Government technical data includes 13 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-017-9355 |
| Primary Part Number | 50433 |
| Item Name | Valve,plug |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | R & M Energy Systems Tomball P |
| Status | ACTIVE |
| Flange Shape | ROUND ALL ENDS |
| Flange Face Design | RAISED STRAIGHT ALL ENDS |
| Connection Type | FLANGE ALL ENDS |
| Material Document and Classification | QQ-C-390,ALLOY D4/D/ FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Flow Style | THREE-WAY THREE PORT 180 DEGREE PLUG TURN |
| Operating Pressure | 75.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Nominal Outside Diameter | 5.062 INCHES ALL ENDS IN |
| Media for Which Designed | WATER, SALT SINGLE RESPONSE |
| Material | COPPER ALLOY 922 OVERALL |
| Raised Face Nominal Diameter | 3.312 INCHES ALL ENDS IN |
| Valve Operation Method | MANUAL |
| Raised Face Nominal Height | 0.016 INCHES ALL ENDS IN |
| Nominal Thickness | 0.734 INCHES ALL ENDS IN |
| 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 |
|---|---|
| 50433 PRIMARY | R & M Energy Systems Tomball P (USA) |
| Reference | Meaning |
|---|---|
| 3132195 | D/9 Drawing number reference only U.S. Government activity |
| 5131688FIG1 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 5131688-F1 | 5/9 Secondary reference U.S. Government activity |
NSN 4820-01-017-9355 is a Valve,plug, manufactured by R & M Energy Systems Tomball P, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-017-9355 has 1 manufacturer part number on file: 50433 (R & M Energy Systems Tomball P).
4 possible matches (shared part number, not a government interchangeability claim): 4810-01-306-3885, 5930-01-416-0042, 5950-01-597-1181. Verify interchangeability with system specifications before substitution.
Key specifications for 50433: Flange Shape: ROUND ALL ENDS; Flange Face Design: RAISED STRAIGHT ALL ENDS; Connection Type: FLANGE ALL ENDS; Material Document and Classification: QQ-C-390,ALLOY D4/D/ FED SPEC SINGLE MATERIAL RESPONSE OVERALL. 13 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.