The Nut,concave,hexagon, cataloged under National Stock Number 5310-00-810-2170, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-810-2170 |
| Primary Part Number | 343986 |
| Item Name | Nut,concave,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. |
| Status | ACTIVE |
| Thread Direction | RIGHT-HAND |
| Nut Height | 0.400 INCHES MINIMUM AND 0.420 INCHES MAXIMUM IN |
| Nut Style | SINGLE CONCAVE, HEXAGON |
| Thread Class | 3B |
| Material | ALUMINUM 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 |
|---|---|
| 343986 PRIMARY | Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. (CAN) |
| Reference | Meaning |
|---|---|
| 343986 | 5/9 Secondary reference Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
NSN 5310-00-810-2170 is a Nut,concave,hexagon, manufactured by Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp., classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-810-2170 has 1 manufacturer part number on file: 343986 (Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.).
Key specifications for 343986: Thread Direction: RIGHT-HAND; Nut Height: 0.400 INCHES MINIMUM AND 0.420 INCHES MAXIMUM IN; Nut Style: SINGLE CONCAVE, HEXAGON; Thread Class: 3B. 5 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.