The Nut,self-Locking,plate, cataloged under National Stock Number 5310-00-133-4595, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Amerace Ltd. Government technical data includes 28 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-133-4595 |
| Primary Part Number | FMA2502-02 |
| Item Name | Nut,self-Locking,plate |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Amerace Ltd |
| Status | ACTIVE |
| Lubrication | DRY FILM LUBRICANT |
| Plate Thickness | 0.085 INCHES MAXIMUM IN |
| Nut Length | 0.989 INCHES MAXIMUM IN |
| Thread Series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Plate Width | 0.568 INCHES MAXIMUM IN |
| Temp Rating | 225.0 FAHRENHEIT MAXIMUM DEGF |
| Mounting Hole Arrangement Style | 2 HOLES |
| Mounting Hole Diameter | 0.098 INCHES MINIMUM AND 0.103 INCHES MAXIMUM IN |
| Nut Counterbore Depth | 0.125 INCHES MINIMUM BASE IN |
| Features Provided | FLOATING NUT |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.190 INCHES IN |
| Counterbore Diameter | 0.229 INCHES MINIMUM BASE IN |
| Distance From Aperture Center to Mounting Hole Center | 0.344 INCHES MINIMUM AND 0.349 INCHES MAXIMUM IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Center to Center Distance Between Mounting Holes Along Length | 0.686 INCHES MINIMUM AND 0.690 INCHES MAXIMUM IN |
| Nut Height | 0.313 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM AND CHROMATE NUT |
| Surface Treatment | CADMIUM SHELL |
| Surface Treatment | ANODIZE OR CADMIUM WASHER |
| Nut Style | PLATE |
| Thread Class | 3B |
| Thread Quantity Per Inch | 32 |
| Material | STEEL SHELL |
| Material | STEEL NUT |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEAL |
| Material | ALUMINUM ALLOY OR STEEL WASHER |
| Nut Mounting Provision | STRAIGHT HOLES |
| 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 |
|---|---|
| FMA2502-02 PRIMARY | Amerace Ltd (CAN) |
| Reference | Meaning |
|---|---|
| FM2502-2 | 5/9 Secondary reference Harvard Industries Inc |
NSN 5310-00-133-4595 is a Nut,self-Locking,plate, manufactured by Amerace Ltd, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-133-4595 has 1 manufacturer part number on file: FMA2502-02 (Amerace Ltd).
1 possible match (shared part number, not a government interchangeability claim): 5310-00-964-0878. Verify interchangeability with system specifications before substitution.
Key specifications for FMA2502-02: Lubrication: DRY FILM LUBRICANT; Overall Height: 0.640 INCHES MAXIMUM IN; Plate Thickness: 0.085 INCHES MAXIMUM IN; Nut Length: 0.989 INCHES MAXIMUM IN. 28 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.