The Turnbuckle, cataloged under National Stock Number 5340-01-648-6615, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Huntington Ingalls Inc Div Newport News Shipbuilding. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active. Unit of issue: EA.
| Item Name | Turnbuckle |
| FSC / FSG | 5340 — Hardware, Commercial (FSG 53) |
| Manufacturers | Mcmaster-Carr Supply Co (CAGE 39428); Huntington Ingalls Inc Div Newport News Shipbuilding (CAGE 43689) |
| Parameter | Value |
|---|---|
| NSN | 5340-01-648-6615 |
| Primary Part Number | 16607246 |
| Item Name | Turnbuckle |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Huntington Ingalls Inc Div Newport News Shipbuilding |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| 3000T54 | Mcmaster-Carr Supply Co (USA) |
| 16607246 PRIMARY | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
| Reference | Meaning |
|---|---|
| 613-8399899 PART NO. 36 | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
| 613-8399899 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 5340-01-648-6615 is a Turnbuckle, manufactured by Huntington Ingalls Inc Div Newport News Shipbuilding, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-648-6615 has 2 manufacturer part numbers on file: 3000T54 (Mcmaster-Carr Supply Co), 16607246 (Huntington Ingalls Inc Div Newport News Shipbuilding).
5 possible matches (shared part number, not a government interchangeability claim): 4030-01-648-6621, 4020-01-649-0367, 4020-01-649-0369. Verify interchangeability with system specifications before substitution.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.