The Nut,plain,spline, cataloged under National Stock Number 5310-00-686-1593, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Lockheed Martin Corporation. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 6 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 10 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-686-1593 |
| Primary Part Number | 13084258 |
| Item Name | Nut,plain,spline |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Lockheed Martin Corporation |
| Status | ACTIVE |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Material Document and Classification | AISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.086 INCHES IN |
| Nut Diameter | 0.219 INCHES NOMINAL IN |
| Pilot Diameter | 0.158 INCHES MINIMUM AND 0.162 INCHES MAXIMUM IN |
| Pilot Length | 0.060 INCHES MAXIMUM IN |
| Nut Height | 0.122 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE OVERALL |
| Nut Style | SPLINE |
| Thread Class | 2B |
| Thread Quantity Per Inch | 56 |
| Material | STEEL COMP 303 OVERALL |
| 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 |
|---|---|
| 13084258 | Lockheed Martin Corporation (USA) |
| KFS2-256 | Penn Engineering & Manufacturing Corp (USA) |
| 11834470-1 | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA) |
| 15890238-0 | Safran Electronics & Defense (FRA) |
| 136214-1 | Raytheon Company (USA) |
| 13043005-1 | Us Army Aviation and Missile Command (USA) |
| Reference | Meaning |
|---|---|
| 15890238-0 | 5/9 Secondary reference Safran |
| 04MF034-001 | 5/9 Secondary reference Raytheon Co ESD Long Island Div |
| KFS2-256 | 3/9 Design control — primary reference Spyraflo Inc |
| 13084258 | 5/9 Secondary reference Program Manager Advanced Attack Helicopter Barcom Amcpm-Aah |
| KF82-256 | C/1 Advisory reference — outside the item-of-supply concept Penn Engineering & Manufacturing Corp |
| 7901604-1 | 5/2 Secondary reference U.S. Government activity |
| 019155-1 | 5/9 Secondary reference Sci Systems Inc |
| 7224812PT1 | C/1 Advisory reference — outside the item-of-supply concept Lockheed Martin Corporation |
| 7224812PT1 | 5/9 Secondary reference U.S. Government activity |
| 413012-14 | 5/2 Secondary reference U.S. Government activity |
NSN 5310-00-686-1593 is a Nut,plain,spline, manufactured by Lockheed Martin Corporation, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-686-1593 has 6 manufacturer part numbers on file: 13084258 (Lockheed Martin Corporation), KFS2-256 (Penn Engineering & Manufacturing Corp), 11834470-1 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate), 15890238-0 (Safran Electronics & Defense), 136214-1 (Raytheon Company) and 1 more.
Key specifications for 13084258: Thread Series: UNIFIED NATIONAL COARSE (UNC); Material Document and Classification: AISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Thread Direction: RIGHT-HAND; Nominal Thread Size: 0.086 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.