The Nut,plain,round, cataloged under National Stock Number 5310-00-033-5284, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Safran Power Usa Llc. Government technical data includes 15 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-033-5284 |
| Primary Part Number | 26478 |
| Item Name | Nut,plain,round |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Safran Power Usa Llc |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-416,TY 1,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNF |
| Material Document and Classification | QQ-S-633,COND A-CANC FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Drive Point Width | 0.031 INCHES MINIMUM AND 0.062 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.138 INCHES IN |
| Nut Diameter | 0.236 INCHES MINIMUM AND 0.240 INCHES MAXIMUM IN |
| Drive Point Depth | 0.016 INCHES MINIMUM AND 0.047 INCHES MAXIMUM IN |
| Nut Thickness | 0.125 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| Drive Point Quantity | 2 |
| Nut Style | ROUND |
| Thread Class | 2B |
| Thread Quantity Per Inch | 40 |
| Material | STEEL COMP 1117 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 |
|---|---|
| 26478 PRIMARY | Safran Power Usa Llc (USA) |
| Reference | Meaning |
|---|---|
| 26478 | 5/9 Secondary reference Ge Aviation Systems Llc |
| 26478 | 3/9 Design control — primary reference Lucas Aerospace Power Equipment Corporation |
NSN 5310-00-033-5284 is a Nut,plain,round, manufactured by Safran Power Usa Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-033-5284 has 1 manufacturer part number on file: 26478 (Safran Power Usa Llc).
6 possible matches (shared part number, not a government interchangeability claim): 5360-00-254-1370, 5130-00-430-0996, 3020-01-422-8348. Verify interchangeability with system specifications before substitution.
Key specifications for 26478: Surface Treatment Document and Classification: QQ-P-416,TY 1,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Series: UNF; Material Document and Classification: QQ-S-633,COND A-CANC FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Drive Point Width: 0.031 INCHES MINIMUM AND 0.062 INCHES MAXIMUM IN. 15 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.