The Nut,plain,hexagon, cataloged under National Stock Number 5310-00-208-6529, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Telephone Company of America Incorporated. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-208-6529 |
| Primary Part Number | N4CBB |
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Telephone Company of America Incorporated |
| Status | ACTIVE |
| Width Across Flats | 0.241 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.112 INCHES IN |
| Nut Height | 0.087 INCHES MINIMUM AND 0.098 INCHES MAXIMUM IN |
| Surface Treatment | OXIDE OVERALL |
| Nut Style | HEXAGON |
| Thread Class | 3B |
| Thread Quantity Per Inch | 40 |
| Material | COPPER ALLOY OVERALL |
| Bearing Surface Type | WASHER FACED |
| 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 |
|---|---|
| N4CBB PRIMARY | Telephone Company of America Incorporated (USA) |
NSN 5310-00-208-6529 is a Nut,plain,hexagon, manufactured by Telephone Company of America Incorporated, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-208-6529 has 1 manufacturer part number on file: N4CBB (Telephone Company of America Incorporated).
Key specifications for N4CBB: Width Across Flats: 0.241 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN; Thread Series: UNIFIED NATIONAL COARSE (UNC); Thread Direction: RIGHT-HAND; Nominal Thread Size: 0.112 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.