The Block,tackle, cataloged under National Stock Number 3940-00-297-2030, is classified within Federal Supply Class 3940 (Blocks, Tackle, Rigging, and Slings) of the Materials Handling Equipment group. The manufacturer of record is Raytheon Company Div Corp. Government technical data includes 21 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3940-00-297-2030 |
| Primary Part Number | C23Z61606 |
| Item Name | Block,tackle |
| FSC / FSG | 3940 / 39 — Blocks, Tackle, Rigging, and Slings |
| Manufacturer | Raytheon Company Div Corp |
| Status | ACTIVE |
| Attachment Style | CHAIN SHACKLE |
| Becket Type | THIMBLE |
| Sheave Bearing Lubrication Method | SELF-LUBRICATED |
| Maximum Tackle Diameter Accommodated | 0.500 INCHES IN |
| Load Rating | 1400.0 POUNDS MAXIMUM LBS |
| Tackle Locking Device | NOT INCLUDED |
| Sheave Outside Diameter | 2.250 INCHES NOMINAL IN |
| Becket Quantity | 1 |
| Tackle Accommodated Type | FIBROUS ROPE |
| Block Type | REGULAR |
| Center Pin Diameter | 0.312 INCHES NOMINAL IN |
| Style Designator | OVAL PATTERN |
| Shell Length | 4.000 INCHES NOMINAL IN |
| Bearing Type | PLAIN |
| Surface Treatment | VARNISH OVERALL |
| Sheave Quantity | 2 |
| Material | WOOD SHELL |
| Material | STEEL CENTER PIN |
| Material | COPPER ALLOY BEARING |
| Material | IRON SHEAVE |
| Antitoppling Device | NOT INCLUDED |
| 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 |
|---|---|
| C23Z61606 PRIMARY | Raytheon Company Div Corp (USA) |
| Reference | Meaning |
|---|---|
| SMC185618 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3940-00-297-2030 is a Block,tackle, manufactured by Raytheon Company Div Corp, classified under FSC 3940, Blocks, Tackle, Rigging, and Slings. Status: active.
NSN 3940-00-297-2030 has 1 manufacturer part number on file: C23Z61606 (Raytheon Company Div Corp).
Key specifications for C23Z61606: Attachment Style: CHAIN SHACKLE; Becket Type: THIMBLE; Sheave Bearing Lubrication Method: SELF-LUBRICATED; Maximum Tackle Diameter Accommodated: 0.500 INCHES IN. 21 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.