The Shackle, cataloged under National Stock Number 4030-00-164-6678, is classified within Federal Supply Class 4030 (No Item Name Available) of the Rope, Cable, Chain, and Fittings group. The primary manufacturer of record is Naval Ship Systems Command. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4030-00-164-6678 |
| Primary Part Number | S2603-860341 |
| Item Name | Shackle |
| FSC / FSG | 4030 / 40 — No Item Name Available |
| Manufacturer | Naval Ship Systems Command |
| Status | ACTIVE |
| Material Diameter | 2.750 INCHES NOMINAL IN |
| Locking Device Type | TAPER PIN W/LEAD PLUG |
| Locking Device Type | TAPER PIN W/LEAD PLUG |
| Inside Length | 7.125 INCHES NOMINAL IN |
| Material | STEEL |
| Material | STEEL |
| Style Designator | CHAIN |
| Features Provided | FORELOCK PINHOLE AND RETAINING CHAIN |
| Material Diameter | 2.750 INCHES NOMINAL IN |
| Features Provided | FORELOCK PINHOLE AND RETAINING CHAIN |
| Opening Width | 4.000 INCHES NOMINAL IN |
| End Condition | PLAIN |
| Closure Head Style | OVAL COUNTERSINK |
| Closure Head Style | OVAL COUNTERSINK |
| Style Designator | CHAIN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| S2603-860341 | Naval Ship Systems Command (USA) |
| 9193 | Boston Naval Shipyard (USA) |
NSN 4030-00-164-6678 is a Shackle, manufactured by Naval Ship Systems Command, classified under FSC 4030 (No Item Name Available). Status: active.
NSN 4030-00-164-6678 has 2 cross-referenced part numbers: S2603-860341 (Naval Ship Systems Command), 9193 (Boston Naval Shipyard).
There are 8 known substitutes for 4030-00-164-6678: 5935-00-031-6179, 8135-00-178-9193, 2940-00-367-0008 and 5 more. Verify interchangeability with system specifications before substitution.
Key specifications for S2603-860341: Material Diameter: 2.750 INCHES NOMINAL IN; Locking Device Type: TAPER PIN W/LEAD PLUG; Locking Device Type: TAPER PIN W/LEAD PLUG; Inside Length: 7.125 INCHES NOMINAL IN. 17 total characteristics are documented in the Federal Logistics Information System.