The Shackle, cataloged under National Stock Number 4030-00-164-6673, 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 Sea Systems Command. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4030-00-164-6673 |
| Primary Part Number | 803-6397320-1 3/8 |
| Item Name | Shackle |
| FSC / FSG | 4030 / 40 — No Item Name Available |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Inside Length | 5.125 INCHES NOMINAL IN |
| Opening Width | 3.000 INCHES NOMINAL IN |
| Material | STEEL |
| Features Provided | FORELOCK PINHOLE AND RETAINING CHAIN |
| Locking Device Type | TAPER PIN W/LEAD PLUG |
| Locking Device Type | TAPER PIN W/LEAD PLUG |
| Material Diameter | 1.750 INCHES NOMINAL IN |
| Style Designator | CHAIN |
| Features Provided | FORELOCK PINHOLE AND RETAINING CHAIN |
| Material | STEEL |
| End Condition | PLAIN |
| Closure Head Style | OVAL COUNTERSINK |
| Material Diameter | 1.750 INCHES NOMINAL IN |
| Closure Head Style | OVAL COUNTERSINK |
| Style Designator | CHAIN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 803-6397320-1 3/8 PRIMARY | Naval Sea Systems Command (USA) |
| 9188 | Boston Naval Shipyard (USA) |
| S2603-860341 | Naval Ship Systems Command (USA) |
NSN 4030-00-164-6673 is a Shackle, manufactured by Naval Sea Systems Command, classified under FSC 4030 (No Item Name Available). Status: active.
NSN 4030-00-164-6673 has 3 cross-referenced part numbers: 803-6397320-1 3/8 (Naval Sea Systems Command), 9188 (Boston Naval Shipyard), S2603-860341 (Naval Ship Systems Command).
There are 7 known substitutes for 4030-00-164-6673: 5133-00-189-9253, 5950-00-602-8723, 1670-00-986-1139 and 4 more. Verify interchangeability with system specifications before substitution.
Key specifications for 803-6397320-1 3/8: Inside Length: 5.125 INCHES NOMINAL IN; Opening Width: 3.000 INCHES NOMINAL IN; Special Features: 2.500 IN. BY 2.000 IN. PEAR SHAPE CLOSURE PIN IN; Material: STEEL. 17 total characteristics are documented in the Federal Logistics Information System.