The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-01-117-5055, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 16 specifications, cited from the U.S. Government catalog. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5310-01-117-5055 |
| Item Name | Nut,self-Locking,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Width Across Flats | 0.679 INCHES MINIMUM AND 0.692 INCHES MAXIMUM IN |
| Bearing Surface Finish | 125.0 MICROINCHES |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Temp Rating | 250.0 FAHRENHEIT MAXIMUM DEGF |
| Material Document and Classification | ASTM D4066,COMP A,TYPE 1 ASSN STD SINGLE MATERIAL RESPONSE LOCKING INSERT |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.438 INCHES IN |
| Locking Feature | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| Nut Height | 0.435 INCHES MINIMUM AND 0.469 INCHES MAXIMUM IN |
| Countersink Angle | 88.0 DEGREES MINIMUM NUT |
| Nut Style | HEXAGON |
| Thread Class | 3B |
| Thread Quantity Per Inch | 14 |
| Material | PLASTIC POLYHEXAMETHYLENE AMIDE LOCKING INSERT |
| Material | NICKEL ALLOY R-405 OR NICKEL ALLOY 400 NUT |
| Bearing Surface Type | CHAMFERED OR WASHER FACED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 0.4375-14UNC-3B NICU | 5/1 Secondary reference Naval Sea Systems Command |
| MS17828-7C | 3/2 Design control — primary reference U.S. Government activity |
| MS17828-7C | 5/9 Secondary reference U.S. Government activity |
| 801-64088788-51 | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
| 709-8500410 ITEM 01-6 | 3/1 Design control — primary reference Naval Sea Systems Command |
| 709-8500409 ITEM 41-4 | 3/1 Design control — primary reference Naval Sea Systems Command |
NSN 5310-01-117-5055 is a Nut,self-Locking,hexagon, classified under FSC 5310, Nuts and Washers. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 5310-01-331-1590, 5310-01-346-3146. Verify interchangeability with system specifications before substitution.
Key specifications for 5310-01-117-5055: Width Across Flats: 0.679 INCHES MINIMUM AND 0.692 INCHES MAXIMUM IN; Bearing Surface Finish: 125.0 MICROINCHES; Thread Series: UNIFIED NATIONAL COARSE (UNC); Temp Rating: 250.0 FAHRENHEIT MAXIMUM DEGF. 16 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.