The Nut,self-Locking,extended Washer, cataloged under National Stock Number 5310-01-181-9719, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Howmet Fixations Simmonds SAS. Government technical data includes 10 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through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-181-9719 |
| Primary Part Number | CR5554-8 |
| Item Name | Nut,self-Locking,extended Washer |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Howmet Fixations Simmonds SAS |
| Status | ACTIVE |
| Washer Outside Diameter | 0.740 INCHES NOMINAL IN |
| Width Across Flats | 0.625 INCHES NOMINAL IN |
| Thread Series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Material Document and Classification | AMS5735 ASSN STD 1ST MATERIAL RESPONSE OR AMS5737 ASSN STD 2ND MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.500 INCHES IN |
| Nut Style | DOUBLE HEXAGON |
| Thread Class | 3B |
| Thread Quantity Per Inch | 20 |
| 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 |
|---|---|
| CR5554-8 | Howmet Fixations Simmonds SAS (FRA) |
| BA16150-08 | Blanc Aero Industries - Groupe Lisi Aerospace (FRA) |
| J626P08 | Ge Engine Services Distribution, L.l.c. (USA) |
| 72424-820 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| J626P08 | General Electric Company (USA) |
| H10024N-820 | National Aerospace Fasteners Corporation |
| Reference | Meaning |
|---|---|
| J626P08D | D/9 Drawing number reference only General Electric Company |
| J626P08B | D/9 Drawing number reference only General Electric Company |
| LH10506-8 | 5/9 Secondary reference Harvard Industries Inc |
| VN811DA080 | 3/2 Design control — primary reference U.S. Government activity |
| J626P08A | D/9 Drawing number reference only General Electric Company |
| J626P08E | D/9 Drawing number reference only General Electric Company |
| J626P08 | 5/9 Secondary reference Cfm International Inc Dba Cfm International |
NSN 5310-01-181-9719 is a Nut,self-Locking,extended Washer, manufactured by Howmet Fixations Simmonds SAS, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-181-9719 has 6 manufacturer part numbers on file: CR5554-8 (Howmet Fixations Simmonds SAS), BA16150-08 (Blanc Aero Industries - Groupe Lisi Aerospace), J626P08 (Ge Engine Services Distribution, L.l.c.), 72424-820 (Sps Technologies, Llc Dba PB Fasteners), J626P08 (General Electric Company) and 1 more.
Key specifications for CR5554-8: Overall Height: 0.675 INCHES NOMINAL IN; Washer Outside Diameter: 0.740 INCHES NOMINAL IN; Width Across Flats: 0.625 INCHES NOMINAL IN; Thread Series: UNIFIED NATIONAL JOINT FINE (UNJF). 10 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.