The Nut,plain,round, cataloged under National Stock Number 5310-00-808-6566, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Transdigm Inc. Government technical data includes 11 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. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-808-6566 |
| Primary Part Number | 40097-4 |
| Item Name | Nut,plain,round |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Transdigm Inc |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNF |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.625 INCHES IN |
| Nut Diameter | 1.000 INCHES NOMINAL IN |
| Nut Thickness | 0.125 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM OVERALL |
| Nut Style | ROUND |
| Thread Class | 1B |
| Thread Quantity Per Inch | 18 |
| Material | STEEL 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 |
|---|---|
| 40097-4 PRIMARY | Transdigm Inc (USA) |
NSN 5310-00-808-6566 is a Nut,plain,round, manufactured by Transdigm Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-808-6566 has 1 manufacturer part number on file: 40097-4 (Transdigm Inc).
2 possible matches (shared part number, not a government interchangeability claim): 1560-00-859-8643, 5905-01-687-3275. Verify interchangeability with system specifications before substitution.
Key specifications for 40097-4: Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Series: UNF; Thread Direction: RIGHT-HAND; Nominal Thread Size: 0.625 INCHES IN. 11 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.