The Nut Assembly,self-Locking,gang C, cataloged under National Stock Number 5310-00-124-8989, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Esna, Llc. Government technical data includes 8 specifications, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-124-8989 |
| Primary Part Number | 646247 |
| Item Name | Nut Assembly,self-Locking,gang C |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Esna, Llc |
| Status | ACTIVE |
| Radius | 13.680 INCHES NOMINAL IN |
| Nut Quantity | 36 |
| Material Document and Classification | AMS 5525 ASSN STD SINGLE MATERIAL RESPONSE CHANNEL |
| Channel Height | 0.118 INCHES MINIMUM AND 0.147 INCHES MAXIMUM IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Nut Style | GANG CHANNEL, SELF LOCKING |
| Material | IRON ALLOY 660 OVERALL |
| Channel Style | RADIUS TYPE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 646247 | Howmet Global Fastening Systems Inc (USA) |
| 646247 PRIMARY | Esna, Llc (USA) |
| Reference | Meaning |
|---|---|
| 646247 | 5/9 Secondary reference Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| 646247 | 5/9 Secondary reference Harvard Industries Inc |
NSN 5310-00-124-8989 is a Nut Assembly,self-Locking,gang C, manufactured by Esna, Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-124-8989 has 2 manufacturer part numbers on file: 646247 (Howmet Global Fastening Systems Inc), 646247 (Esna, Llc).
Key specifications for 646247: Radius: 13.680 INCHES NOMINAL IN; Nut Quantity: 36; Material Document and Classification: AMS 5525 ASSN STD SINGLE MATERIAL RESPONSE CHANNEL; Overall Width: 0.446 INCHES MINIMUM AND 0.520 INCHES MAXIMUM IN. 8 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). 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.