The Block,tackle, cataloged under National Stock Number 3940-00-368-2891, is classified within Federal Supply Class 3940 (No Item Name Available) of the Materials Handling Equipment group. The primary manufacturer of record is Naval Ship Systems Command. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3940-00-368-2891 |
| Primary Part Number | S8101-1008936 |
| Item Name | Block,tackle |
| FSC / FSG | 3940 / 39 — No Item Name Available |
| Manufacturer | Naval Ship Systems Command |
| Status | ACTIVE |
| Material | STEEL SHELL |
| Bearing Type | PLAIN |
| Style Designator | OVAL PATTERN |
| Sheave Quantity | 1 |
| Antitoppling Device | NOT INCLUDED |
| Unable to Decode | UNABLE TO DECODE |
| Center Pin Diameter | 0.750 INCHES NOMINAL IN |
| Tackle Accommodated Type | WIRE ROPE |
| Sheave Bearing Lubrication Method | SELF-LUBRICATED |
| Block Type | SNATCH |
| Sheave Outside Diameter | 6.000 INCHES NOMINAL IN |
| Maximum Tackle Diameter Accommodated | 0.500 INCHES IN |
| Attachment Style | OBLONG SWIVEL EYE |
| Tackle Locking Device | NOT INCLUDED |
| Material | STEEL CENTER PIN |
| Material | STEEL SHEAVE |
| Material | COPPER ALLOY BEARING |
| Locking Style | DROP LINK |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| S8101-1008936 PRIMARY | Naval Ship Systems Command (USA) |
| 4114 | Sherman + Reilly, Inc. (USA) |
| 4083P | Brewer-Titchner Corp Sub Joslyn Mfg and Supply Co (USA) |
| 439B | Crosby Group Inc the Mckissick Plant Div (USA) |
NSN 3940-00-368-2891 is a Block,tackle, manufactured by Naval Ship Systems Command, classified under FSC 3940 (No Item Name Available). Status: active.
NSN 3940-00-368-2891 has 4 cross-referenced part numbers: S8101-1008936 (Naval Ship Systems Command), 4114 (Sherman + Reilly, Inc.), 4083P (Brewer-Titchner Corp Sub Joslyn Mfg and Supply Co), 439B (Crosby Group Inc the Mckissick Plant Div).
There are 12 known substitutes for 3940-00-368-2891: 5330-00-123-2723, 4320-00-147-1733, 5120-00-189-7924 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for S8101-1008936: Material: STEEL SHELL; Bearing Type: PLAIN; Style Designator: OVAL PATTERN; Sheave Quantity: 1. 18 total characteristics are documented in the Federal Logistics Information System.