The Nut,plain,extended Washer,hexago, cataloged under National Stock Number 5310-01-175-2812, 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 11 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-175-2812 |
| Primary Part Number | 73783CM918 |
| Item Name | Nut,plain,extended Washer,hexago |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Sps Technologies, Llc Dba PB Fasteners |
| Status | ACTIVE |
| Washer Outside Diameter | 0.850 INCHES NOMINAL IN |
| Width Across Flats | 0.683 INCHES NOMINAL IN |
| Thread Series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Washer Thickness | 0.045 INCHES NOMINAL IN |
| Material Document and Classification | AMS5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.563 INCHES IN |
| Nut Style | CASTELLATED HEXAGON |
| Thread Class | 3B |
| Thread Quantity Per Inch | 18 |
| Material | STEEL CORROSION RESISTING 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 |
|---|---|
| 73783CM918 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| 9131M74P27 | General Electric Company (USA) |
| Reference | Meaning |
|---|---|
| SMTE9925-9 | 5/9 Secondary reference Harvard Industries Inc |
| H49403-9 | 5/9 Secondary reference Howmet Global Fastening Systems Inc |
| 9131M74P27 | D/9 Drawing number reference only Cfm International Inc Dba Cfm International |
| 73783CM918 | 5/9 Secondary reference U.S. Government activity |
| 9131M74P07 | 5/9 Secondary reference Cfm International Inc Dba Cfm International |
| 9131M74P17 | D/9 Drawing number reference only Cfm International Inc Dba Cfm International |
| 9131M74P17 | D/9 Drawing number reference only General Electric Company |
| 9131M74P07 | 5/9 Secondary reference General Electric Company |
NSN 5310-01-175-2812 is a Nut,plain,extended Washer,hexago, manufactured by Sps Technologies, Llc Dba PB Fasteners, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-175-2812 has 2 manufacturer part numbers on file: 73783CM918 (Sps Technologies, Llc Dba PB Fasteners), 9131M74P27 (General Electric Company).
Key specifications for 73783CM918: Overall Height: 0.301 INCHES NOMINAL IN; Washer Outside Diameter: 0.850 INCHES NOMINAL IN; Width Across Flats: 0.683 INCHES NOMINAL IN; Thread Series: UNIFIED NATIONAL JOINT FINE (UNJF). 11 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.