The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-01-657-5099, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Norma Pennsylvania Inc. Div Breeze Industrial Products. Government technical data includes 13 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-01-657-5099 |
| Primary Part Number | A-9200-14 |
| Item Name | Nut,self-Locking,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Norma Pennsylvania Inc. Div Breeze Industrial Products |
| Status | ACTIVE |
| Width Across Flats | 0.44 INCHES NOMINAL IN |
| Thread Series | UNF |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.250 INCHES IN |
| Locking Feature | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| Nut Height | 0.31 INCHES NOMINAL IN |
| Surface Treatment | ZINC NUT |
| Nut Style | HEXAGON |
| Thread Class | 2B |
| Thread Quantity Per Inch | 28 |
| Material | STEEL NUT |
| Material | PLASTIC NYLON LOCKING INSERT |
| Bearing Surface Type | FLAT |
| 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 |
|---|---|
| A-9200-14 PRIMARY | Norma Pennsylvania Inc. Div Breeze Industrial Products (USA) |
| Reference | Meaning |
|---|---|
| 4193173 | 7/2 Vendor item drawing reference Oshkosh Defense Llc |
NSN 5310-01-657-5099 is a Nut,self-Locking,hexagon, manufactured by Norma Pennsylvania Inc. Div Breeze Industrial Products, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-657-5099 has 1 manufacturer part number on file: A-9200-14 (Norma Pennsylvania Inc. Div Breeze Industrial Products).
Key specifications for A-9200-14: Width Across Flats: 0.44 INCHES NOMINAL IN; Thread Series: UNF; Thread Direction: RIGHT-HAND; Nominal Thread Size: 0.250 INCHES IN. 13 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.