The Nut,plain,hexagon, cataloged under National Stock Number 5310-00-469-8142, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Preci-Manufacturing, Incorporated. Government technical data includes 19 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-469-8142 |
| Primary Part Number | 660900 |
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Preci-Manufacturing, Incorporated |
| Status | ACTIVE |
| Width Across Flats | 0.865 INCHES MINIMUM AND 0.877 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | AMS 2410 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNF |
| Precious Material | SILVER |
| Hole Configuration Style | CONFIGURATION B |
| Material Document and Classification | AMS 5735 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nut Counterbore Depth | 0.050 INCHES MINIMUM AND 0.060 INCHES MAXIMUM NUT IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.562 INCHES IN |
| Counterbore Diameter | 0.765 INCHES MINIMUM AND 0.775 INCHES MAXIMUM NUT IN |
| Nut Height | 0.271 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN |
| Drilled Hole Diameter | 0.060 INCHES NOMINAL IN |
| Surface Treatment | SILVER OVERALL |
| Nut Style | HEXAGON |
| Thread Class | 3B |
| Thread Quantity Per Inch | 18 |
| Material | IRON ALLOY 660 OVERALL |
| Bearing Surface Type | CHAMFERED |
| Hole Type and Quantity | 2 DRILLED |
| 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 |
|---|---|
| 660900 PRIMARY | Preci-Manufacturing, Incorporated (USA) |
| 660900 PRIMARY | G.s. Precision, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 660900 | 5/9 Secondary reference Kito Mfg Co. Ltd |
| 660900 | 5/9 Secondary reference Turbo Power & Marine System Inc Sub of United Technologies Corp |
| 660900 | 5/9 Secondary reference Comet Mfg Co Inc |
| 660900 | 5/1 Secondary reference Md3 Industries, Limited Div Md3 Industries, Ltd. |
| 660900 | 5/1 Secondary reference Kito Mfg Co. Ltd |
| 660900 | 7/2 Vendor item drawing reference Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
NSN 5310-00-469-8142 is a Nut,plain,hexagon, manufactured by Preci-Manufacturing, Incorporated, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-469-8142 has 2 manufacturer part numbers on file: 660900 (Preci-Manufacturing, Incorporated), 660900 (G.s. Precision, Inc.).
Key specifications for 660900: Width Across Flats: 0.865 INCHES MINIMUM AND 0.877 INCHES MAXIMUM IN; Surface Treatment Document and Classification: AMS 2410 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Thread Series: UNF; Precious Material: SILVER. 19 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.