The Valve,plug, cataloged under National Stock Number 4820-01-153-8806, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Flowserve Us Inc. Div Flowserve Cookeville Valve Operation. Government technical data includes 8 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-153-8806 |
| Primary Part Number | MG432-1 D4L/D4 |
| Item Name | Valve,plug |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Flowserve Us Inc. Div Flowserve Cookeville Valve Operation |
| Status | ACTIVE |
| Nominal Pipe Size Accommodated | 0.500 INCHES FIRST END IN |
| Connection Style | STREAMLINED WITH ONE BRAZING RING ALL ENDS |
| Connection Type | UNTHREADED INTERNAL PIPE ALL ENDS |
| Material Document and Classification | ASTM A3521,GRADE CF8M ASSN STD SINGLE MATERIAL RESPONSE BODY |
| Flow Style | TWO-WAY TWO PORT 90 DEGREE PLUG TURN |
| Material | STEEL BODY |
| Material | PLASTIC POLYCHLOROTRIFLUOROETHYLENE FLOW CONTROL DEVICE |
| Valve Operation Method | MANUAL |
| 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 |
|---|---|
| MG432-1 D4L/D4 PRIMARY | Flowserve Us Inc. Div Flowserve Cookeville Valve Operation (USA) |
| Reference | Meaning |
|---|---|
| SP128-MG432 1/2IN | 5/9 Secondary reference Duriron Co Inc the |
| MG434C 1/2IN SB | C/1 Advisory reference — outside the item-of-supply concept Duriron Co Inc the |
| SP128 | D/9 Drawing number reference only Duriron Co Inc the |
| MG432 | D/9 Drawing number reference only Duriron Co Inc the |
| MG432-1/2IN SBU | 3/9 Design control — primary reference Duriron Co Inc the |
NSN 4820-01-153-8806 is a Valve,plug, manufactured by Flowserve Us Inc. Div Flowserve Cookeville Valve Operation, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-153-8806 has 1 manufacturer part number on file: MG432-1 D4L/D4 (Flowserve Us Inc. Div Flowserve Cookeville Valve Operation).
2 possible matches (shared part number, not a government interchangeability claim): 5905-01-287-2252, 6840-01-562-5707. Verify interchangeability with system specifications before substitution.
Key specifications for MG432-1 D4L/D4: Nominal Pipe Size Accommodated: 0.500 INCHES FIRST END IN; Connection Style: STREAMLINED WITH ONE BRAZING RING ALL ENDS; Connection Type: UNTHREADED INTERNAL PIPE ALL ENDS; Material Document and Classification: ASTM A3521,GRADE CF8M ASSN STD SINGLE MATERIAL RESPONSE BODY. 8 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.