The Nut,self-Locking,plate, cataloged under National Stock Number 5310-01-434-0833, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Howmet Global Fastening Systems Inc. Government technical data includes 27 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-434-0833 |
| Primary Part Number | F51827-4-40 |
| Item Name | Nut,self-Locking,plate |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Howmet Global Fastening Systems Inc |
| Status | ACTIVE |
| Lubrication | DRY FILM LUBRICANT |
| Plate Thickness | 0.023 INCHES MINIMUM AND 0.027 INCHES MAXIMUM IN |
| Nut Length | 1.360 INCHES MINIMUM AND 1.390 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Plate Width | 0.865 INCHES MAXIMUM IN |
| Mounting Hole Arrangement Style | 2 HOLES |
| Material Document and Classification | AMS5528 ASSN STD SINGLE MATERIAL RESPONSE CLIP |
| Material Document and Classification | AMS5528 ASSN STD SINGLE MATERIAL RESPONSE SHELL |
| Material Document and Classification | AMS5528 ASSN STD SINGLE MATERIAL RESPONSE SPRING |
| Material Document and Classification | AMS5737 ASSN STD SINGLE MATERIAL RESPONSE NUT |
| Mounting Hole Diameter | 0.098 INCHES MINIMUM AND 0.103 INCHES MAXIMUM IN |
| Features Provided | FLOATING NUT |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.250 INCHES IN |
| Distance From Aperture Center to Mounting Hole Center | 0.557 INCHES MINIMUM AND 0.567 INCHES MAXIMUM IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Center to Center Distance Between Mounting Holes Along Length | 1.123 INCHES MINIMUM AND 1.127 INCHES MAXIMUM IN |
| Nut Height | 0.765 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 3B |
| Thread Quantity Per Inch | 28 |
| Material | IRON ALLOY 660 NUT |
| Material | STEEL COMP 631 SPRING |
| Material | STEEL COMP 631 SHELL |
| Material | STEEL COMP 631 CLIP |
| Nut Mounting Provision | STRAIGHT HOLES |
| 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 |
|---|---|
| F51827-4-40 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| 10122323 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| NS202545-4-40C | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| ALLAF17/40-4 | 3/2 Design control — primary reference U.S. Government activity |
| ST3M722C4M40-1 | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
NSN 5310-01-434-0833 is a Nut,self-Locking,plate, manufactured by Howmet Global Fastening Systems Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-434-0833 has 1 manufacturer part number on file: F51827-4-40 (Howmet Global Fastening Systems Inc).
Key specifications for F51827-4-40: Lubrication: DRY FILM LUBRICANT; Plate Thickness: 0.023 INCHES MINIMUM AND 0.027 INCHES MAXIMUM IN; Nut Length: 1.360 INCHES MINIMUM AND 1.390 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 27 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.