The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-00-222-4259, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is F and B/ceco 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-222-4259 |
| Primary Part Number | 1000PT23AAND23B |
| Item Name | Nut,self-Locking,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | F and B/ceco Inc |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE NUT |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Material Document and Classification | QQ-S-633,COMP C1112 FED SPEC SINGLE MATERIAL RESPONSE NUT |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.250 INCHES IN |
| Locking Feature | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| Surface Treatment | CADMIUM NUT |
| Thread Class | 2B |
| Thread Quantity Per Inch | 20 |
| Material | STEEL NUT |
| Material | FIBER LOCKING INSERT |
| 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 |
|---|---|
| 1000PT23AAND23B PRIMARY | F and B/ceco Inc (USA) |
| Reference | Meaning |
|---|---|
| A102-9TYPE102-9S416 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-00-222-4259 is a Nut,self-Locking,hexagon, manufactured by F and B/ceco Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-222-4259 has 1 manufacturer part number on file: 1000PT23AAND23B (F and B/ceco Inc).
Key specifications for 1000PT23AAND23B: Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE NUT; Thread Series: UNIFIED NATIONAL COARSE (UNC); Material Document and Classification: QQ-S-633,COMP C1112 FED SPEC SINGLE MATERIAL RESPONSE NUT; Thread Direction: RIGHT-HAND. 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.