The Block,screw, cataloged under National Stock Number 3950-01-434-6832, is classified within Federal Supply Class 3950 (Winches, Hoists, Cranes, and Derricks) of the Materials Handling Equipment group. The manufacturer of record is Appleton Marine Inc. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3950-01-434-6832 |
| Primary Part Number | MMD-2240 |
| Item Name | Block,screw |
| FSC / FSG | 3950 / 39 — Winches, Hoists, Cranes, and Derricks |
| Manufacturer | Appleton Marine Inc |
| Status | ACTIVE |
| Material | COPPER ALLOY |
| 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 |
|---|---|
| MMD-2240 PRIMARY | Appleton Marine Inc (USA) |
| AMD-1088 IT-39 | Appleton Marine Inc (USA) |
| Reference | Meaning |
|---|---|
| AMD-1088 | D/9 Drawing number reference only Appleton Marine Inc |
NSN 3950-01-434-6832 is a Block,screw, manufactured by Appleton Marine Inc, classified under FSC 3950, Winches, Hoists, Cranes, and Derricks. Status: active.
NSN 3950-01-434-6832 has 2 manufacturer part numbers on file: MMD-2240 (Appleton Marine Inc), AMD-1088 IT-39 (Appleton Marine Inc).
Key specifications for MMD-2240: Overall Length: 5.000 INCHES NOMINAL IN; Overall Width: 2.500 INCHES NOMINAL IN; Special Features: USED ON THE BRAKE LINKAGE OF A WINCH; End Item Identification: WINCH; STRATEGIC SEALAIFT CONVERSION SHIPS CLASS. 1 specification is 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.