The Block,tackle, cataloged under National Stock Number 3940-01-370-7968, is classified within Federal Supply Class 3940 (Blocks, Tackle, Rigging, and Slings) of the Materials Handling Equipment group. The manufacturer of record is Mcmaster-Carr Supply Co. Government technical data includes 14 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3940-01-370-7968 |
| Primary Part Number | 3099T13 |
| Item Name | Block,tackle |
| FSC / FSG | 3940 / 39 — Blocks, Tackle, Rigging, and Slings |
| Manufacturer | Mcmaster-Carr Supply Co |
| Status | ACTIVE |
| Attachment Style | ROUND SWIVEL EYE |
| Becket Type | SWIVEL EYE |
| Sheave Bearing Lubrication Method | SELF-LUBRICATED |
| Maximum Tackle Diameter Accommodated | 0.188 INCHES IN |
| Load Rating | 480.0 POUNDS MAXIMUM LBS |
| Sheave Outside Diameter | 2.000 INCHES NOMINAL IN |
| Becket Quantity | 1 |
| Tackle Accommodated Type | WIRE ROPE |
| Block Type | SNATCH |
| Style Designator | PULLEY PATTERN |
| Locking Style | DROP LINK |
| Sheave Quantity | 1 |
| Material | STEEL OVERALL |
| 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 |
|---|---|
| 3099T13 PRIMARY | Mcmaster-Carr Supply Co (USA) |
| Reference | Meaning |
|---|---|
| 75-2743121-1 | 7/2 Vendor item drawing reference General Dynamics Mission Systems, Inc. |
NSN 3940-01-370-7968 is a Block,tackle, manufactured by Mcmaster-Carr Supply Co, classified under FSC 3940, Blocks, Tackle, Rigging, and Slings. Status: active.
NSN 3940-01-370-7968 has 1 manufacturer part number on file: 3099T13 (Mcmaster-Carr Supply Co).
Key specifications for 3099T13: Attachment Style: ROUND SWIVEL EYE; Becket Type: SWIVEL EYE; Sheave Bearing Lubrication Method: SELF-LUBRICATED; Maximum Tackle Diameter Accommodated: 0.188 INCHES IN. 14 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.