The Valve,plug, cataloged under National Stock Number 4820-01-244-5038, 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 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-244-5038 |
| Primary Part Number | BM-051618 |
| Item Name | Valve,plug |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | R & M Energy Systems Tomball P |
| Status | ACTIVE |
| Flange Shape | ROUND WITH HOLES ALL ENDS |
| Bolt Circle Nominal Diameter | 6.562 INCHES ALL ENDS IN |
| Connection Type | FLANGE ALL ENDS |
| Bolt Hole Nominal Diameter | 0.562 INCHES ALL ENDS IN |
| Nominal Outside Diameter | 7.688 INCHES ALL ENDS IN |
| Bolt Hole Quantity | 8 ALL ENDS |
| Material | COPPER ALLOY BODY |
| Valve Operation Method | AUTOMATIC |
| Nominal Thickness | 0.500 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 |
|---|---|
| BM-051618 PRIMARY | R & M Energy Systems Tomball P (USA) |
| 5134181 FIG 5 | R & M Energy Systems Tomball P (USA) |
| Reference | Meaning |
|---|---|
| BM-51618 | 5/9 Secondary reference R & M Energy Systems Tomball P |
NSN 4820-01-244-5038 is a Valve,plug, manufactured by R & M Energy Systems Tomball P, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-244-5038 has 2 manufacturer part numbers on file: BM-051618 (R & M Energy Systems Tomball P), 5134181 FIG 5 (R & M Energy Systems Tomball P).
Key specifications for BM-051618: Flange Shape: ROUND WITH HOLES ALL ENDS; Bolt Circle Nominal Diameter: 6.562 INCHES ALL ENDS IN; Connection Type: FLANGE ALL ENDS; Bolt Hole Nominal Diameter: 0.562 INCHES ALL ENDS IN. 9 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.