The Block,double, cataloged under National Stock Number 3940-01-558-3496, is classified within Federal Supply Class 3940 (No Item Name Available) of the Materials Handling Equipment group. The primary manufacturer of record is Harken Inc. This item has 1 commercial cross-reference from 1 manufacturer, 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 | 3940-01-558-3496 |
| Primary Part Number | 2603 |
| Item Name | Block,double |
| FSC / FSG | 3940 / 39 — No Item Name Available |
| Manufacturer | Harken Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 2603 PRIMARY | Harken Inc (USA) |
NSN 3940-01-558-3496 is a Block,double, manufactured by Harken Inc, classified under FSC 3940 (No Item Name Available). Status: active.
NSN 3940-01-558-3496 has 1 cross-referenced part number: 2603 (Harken Inc).
There are 12 known substitutes for 3940-01-558-3496: 5905-00-064-3189, 5998-00-136-6230, 5962-00-169-8959 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 2603: Special Features: WEIGHT WITH SHACKLE:6.6 OZ; SHEAVE DIA:2.25 IN.; DESCRIPTION:DOUBLE/SWIVEL/BECKET; MAX.LINE DIA:0.4375 IN.; SWL:1584 LBS; BREAKING STRENGTH:3300 LBS LBS; Part Name Assigned by Controlling Agency: BLOCK-57MM CARBO DOUBLE W/BKT MM; End Item Identification: DAVIT PORTABLE LONG RANGE INSERTION CRAFT GEN IV; Overall Length: 5.625 INCHES NOMINAL IN. 4 total characteristics are documented in the Federal Logistics Information System.