The Nut,self-Locking,gang Channel, cataloged under National Stock Number 5310-00-997-6841, 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 16 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-997-6841 |
| Primary Part Number | 490284 |
| Item Name | Nut,self-Locking,gang Channel |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Esna, Llc |
| Status | ACTIVE |
| Nut Length | 0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | AMS 2410 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNF |
| Precious Material | SILVER |
| Thread Pitch Diameters | +0.2298 TO 0.2330 INCHES IN |
| Material Document and Classification | AMS 5709 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Base Width | 0.421 INCHES MINIMUM AND 0.431 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.250 INCHES IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Nut Height | 0.396 INCHES MINIMUM AND 0.411 INCHES MAXIMUM IN |
| Surface Treatment | SILVER OVERALL |
| Nut Style | GANG CHANNEL, SELF LOCKING |
| Base Thickness | 0.065 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN |
| Thread Quantity Per Inch | 28 |
| Material | NICKEL ALLOY OVERALL |
| 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 |
|---|---|
| ZG6628-048K | Esna, Llc (USA) |
| 490284 | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| 490284 PRIMARY | Esna, Llc (USA) |
| Reference | Meaning |
|---|---|
| ZG6628-048K | 5/9 Secondary reference Harvard Industries Inc |
| 490284 | 5/9 Secondary reference Turbo Power & Marine System Inc Sub of United Technologies Corp |
| 490284 | 5/9 Secondary reference Harvard Industries Inc |
NSN 5310-00-997-6841 is a Nut,self-Locking,gang Channel, manufactured by Esna, Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-997-6841 has 3 manufacturer part numbers on file: ZG6628-048K (Esna, Llc), 490284 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 490284 (Esna, Llc).
Key specifications for 490284: Nut Length: 0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM IN; Surface Treatment Document and Classification: AMS 2410 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Thread Series: UNF; Precious Material: SILVER. 16 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.