The Coupling,wire Rope,quick Disconn, cataloged under National Stock Number 4030-00-489-1851, is classified within Federal Supply Class 4030 (Fittings for Rope, Cable, and Chain) of the Rope, Cable, Chain, and Fittings group. The manufacturer of record is Bell-Memphis Inc. Government technical data includes 6 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4030-00-489-1851 |
| Primary Part Number | BM2258-2 |
| Item Name | Coupling,wire Rope,quick Disconn |
| FSC / FSG | 4030 / 40 — Fittings for Rope, Cable, and Chain |
| Manufacturer | Bell-Memphis Inc |
| Status | ACTIVE |
| Outside Diameter | 0.422 INCHES NOMINAL IN |
| Style Designator | SPRING TYPE |
| Material Document and Classification | 66 FED STD ALL MATERIAL RESPONSES |
| Accommodated Material Diameter | 0.062 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE |
| Material | STEEL COMP 305 OR STEEL COMP 303SE |
| 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 |
|---|---|
| BM2258-2 PRIMARY | Bell-Memphis Inc (USA) |
| Reference | Meaning |
|---|---|
| DCBL402 | 5/9 Secondary reference Marathonnorco Aerospace, Inc. |
| RA2258-2 | 5/9 Secondary reference Acco Industries Inc Sub of Babcock Intl Inc |
NSN 4030-00-489-1851 is a Coupling,wire Rope,quick Disconn, manufactured by Bell-Memphis Inc, classified under FSC 4030, Fittings for Rope, Cable, and Chain. Status: active.
NSN 4030-00-489-1851 has 1 manufacturer part number on file: BM2258-2 (Bell-Memphis Inc).
Key specifications for BM2258-2: Outside Diameter: 0.422 INCHES NOMINAL IN; Style Designator: SPRING TYPE; Material Document and Classification: 66 FED STD ALL MATERIAL RESPONSES; Overall Length: 1.220 INCHES NOMINAL IN. 6 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.