The Nut,self-Locking,plate, cataloged under National Stock Number 5310-01-182-9135, 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 26 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-182-9135 |
| Primary Part Number | F49251E3-3 |
| 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 | 0.028 INCHES MINIMUM AND 0.036 INCHES MAXIMUM IN |
| Nut Length | 1.051 INCHES MAXIMUM IN |
| Thread Series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Plate Width | 0.454 INCHES MAXIMUM IN |
| Mounting Hole Arrangement Style | 2 HOLES |
| Removable Nut Manufacturer Part Number | ST3M445C3M3 |
| Material Document and Classification | AMS 5525 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5732 ASSN STD SINGLE MATERIAL RESPONSE NUT |
| Material Document and Classification | AMS 5525 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5732 ASSN STD SINGLE MATERIAL RESPONSE BASE |
| Mounting Hole Diameter | 0.098 INCHES MINIMUM AND 0.103 INCHES MAXIMUM IN |
| Features Provided | FLOATING NUT |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.190 INCHES IN |
| Distance From Aperture Center to Mounting Hole Center | 0.339 INCHES MINIMUM AND 0.349 INCHES MAXIMUM IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Center to Center Distance Between Mounting Holes Along Length | 0.310 INCHES MINIMUM AND 0.314 INCHES MAXIMUM IN |
| Nut Height | 0.362 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Nut Style | PLATE |
| Thread Class | 3B |
| Thread Quantity Per Inch | 32 |
| Material | IRON ALLOY 660 NUT |
| Material | IRON ALLOY 660 BASE |
| Material | STEEL CORROSION RESISTING CLIP |
| Nut Mounting Provision | STRAIGHT HOLES |
| Removable Nut Manufacturer Code | 76301 |
| 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 |
|---|---|
| F49251E3-3 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| ST3M442-3A3 PRIMARY | Bristol Industries, Llc (USA) |
| Reference | Meaning |
|---|---|
| 10110078 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| NS202042-02-3 | 3/2 Design control — primary reference U.S. Government activity |
| F52890-3-3 | C/1 Advisory reference — outside the item-of-supply concept Howmet Global Fastening Systems Inc |
| ST3M442-3A3 | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
| F18427L3-3 | 5/9 Secondary reference Harvard Industries Inc |
NSN 5310-01-182-9135 is a Nut,self-Locking,plate, manufactured by Howmet Global Fastening Systems Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-182-9135 has 2 manufacturer part numbers on file: F49251E3-3 (Howmet Global Fastening Systems Inc), ST3M442-3A3 (Bristol Industries, Llc).
1 possible match (shared part number, not a government interchangeability claim): 5310-01-327-5703. Verify interchangeability with system specifications before substitution.
Key specifications for F49251E3-3: Lubrication: DRY FILM LUBRICANT; Plate Thickness: 0.028 INCHES MINIMUM AND 0.036 INCHES MAXIMUM IN; Nut Length: 1.051 INCHES MAXIMUM IN; Thread Series: UNIFIED NATIONAL JOINT FINE (UNJF). 26 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.