The Block,tackle, cataloged under National Stock Number 3940-01-387-9220, is classified within Federal Supply Class 3940 (No Item Name Available) of the Materials Handling Equipment group. The primary manufacturer of record is Mcmaster-Carr Supply Co. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3940-01-387-9220 |
| Primary Part Number | 3151T14 |
| Item Name | Block,tackle |
| FSC / FSG | 3940 / 39 — No Item Name Available |
| Manufacturer | Mcmaster-Carr Supply Co |
| Status | ACTIVE |
| Center Pin Diameter | 0.360 INCHES MINIMUM IN |
| Sheave Quantity | 1 |
| Attachment Style | FRONT EYE FLATTED LOOSE HOOK |
| Load Rating | 900.0 POUNDS MAXIMUM LBS |
| Material | STEEL SHELL |
| Material | IRON SHEAVE |
| Bearing Type | PLAIN |
| Maximum Tackle Diameter Accommodated | 0.500 INCHES IN |
| Sheave Outside Diameter | 2.250 INCHES NOMINAL IN |
| Tackle Locking Device | NOT INCLUDED |
| Shell Length | 4.000 INCHES NOMINAL IN |
| Antitoppling Device | NOT INCLUDED |
| Locking Style | DROP LINK |
| Style Designator | OVAL PATTERN |
| Tackle Accommodated Type | FIBROUS ROPE |
| Block Type | SNATCH |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 25039-1 | Engineered Air Systems, Inc. Dba Drs Sustainment Systems (USA) |
| 25039-1 | Drs Environmental Systems Inc (USA) |
| 25039 | Engineered Air Systems, Inc. Dba Drs Sustainment Systems (USA) |
| 3151T14 PRIMARY | Mcmaster-Carr Supply Co (USA) |
| 25039-1 | Hdt Expeditionary Systems Inc (USA) |
NSN 3940-01-387-9220 is a Block,tackle, manufactured by Mcmaster-Carr Supply Co, classified under FSC 3940 (No Item Name Available). Status: active.
NSN 3940-01-387-9220 has 5 cross-referenced part numbers: 25039-1 (Engineered Air Systems, Inc. Dba Drs Sustainment Systems), 25039-1 (Drs Environmental Systems Inc), 25039 (Engineered Air Systems, Inc. Dba Drs Sustainment Systems), 3151T14 (Mcmaster-Carr Supply Co), 25039-1 (Hdt Expeditionary Systems Inc).
There are 11 known substitutes for 3940-01-387-9220: 6530-00-027-5018, 5120-00-496-1559, 4820-01-065-7206 and 8 more. Verify interchangeability with system specifications before substitution.
Key specifications for 3151T14: Center Pin Diameter: 0.360 INCHES MINIMUM IN; Sheave Quantity: 1; Attachment Style: FRONT EYE FLATTED LOOSE HOOK; Load Rating: 900.0 POUNDS MAXIMUM LBS. 17 total characteristics are documented in the Federal Logistics Information System.