The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-00-559-1189, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Sps Technologies, Llc Dba PB Fasteners. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5310-00-559-1189 |
| Primary Part Number | 639292 |
| Item Name | Nut,self-Locking,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Sps Technologies, Llc Dba PB Fasteners |
| Status | CANCELLED |
| Width Across Flats | 0.558 INCHES NOMINAL IN |
| Thread Series | UNF |
| Criticality Code Justification | FEAT |
| Material Document and Classification | AMS 5024 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.375 INCHES IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Nut Height | 0.453 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM OVERALL |
| Nut Style | HEXAGON |
| Thread Class | 3B |
| Thread Quantity Per Inch | 24 |
| Material | STEEL COMP 1137 OVERALL |
| Bearing Surface Type | CHAMFERED |
| Acquisition Status | CANCELLED |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 270406 | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| 157147 | Esna, Llc (USA) |
| 270406 | Howmet Global Fastening Systems Inc (USA) |
| 639292 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| H29123-6 | Howmet Global Fastening Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| 234534 | E/8 Replaced / superseded reference Now Corp Modern Mfg Div |
| 270406 | 5/9 Secondary reference Harvard Industries Inc |
| 270406 | 5/9 Secondary reference Sps Technologies Inc |
NSN 5310-00-559-1189 is a Nut,self-Locking,hexagon, manufactured by Sps Technologies, Llc Dba PB Fasteners, classified under FSC 5310, Nuts and Washers. Status: cancelled.
NSN 5310-00-559-1189 has 5 manufacturer part numbers on file: 270406 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 157147 (Esna, Llc), 270406 (Howmet Global Fastening Systems Inc), 639292 (Sps Technologies, Llc Dba PB Fasteners), H29123-6 (Howmet Global Fastening Systems Inc).
2 possible matches (shared part number, not a government interchangeability claim): 4820-00-639-9224, 4730-01-393-2210. Verify interchangeability with system specifications before substitution.
Key specifications for 639292: Width Across Flats: 0.558 INCHES NOMINAL IN; Thread Series: UNF; Criticality Code Justification: FEAT; Material Document and Classification: AMS 5024 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 14 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.
NSN 5310-00-559-1189 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.
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.