The Nut,self-Locking,plate, cataloged under National Stock Number 5310-01-026-0816, 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. Div Microdot Products. Government technical data includes 22 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through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-026-0816 |
| Primary Part Number | BACN10RL3A4 |
| Item Name | Nut,self-Locking,plate |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Howmet Global Fastening Systems Inc. Div Microdot Products |
| Status | ACTIVE |
| Plate Thickness | 0.050 INCHES MINIMUM IN |
| Nut Length | 0.980 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | MIL-A-8625A MIL SPEC SINGLE TREATMENT RESPONSE SHELL A |
| Surface Treatment Document and Classification | QQ-P-416A,TYPE 1,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OR QQ-P-416A,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE NUT A |
| Thread Series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Plate Width | 0.450 INCHES MAXIMUM IN |
| Mounting Hole Arrangement Style | 2 HOLES |
| Mounting Hole Diameter | 0.098 INCHES MINIMUM AND 0.103 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.190 INCHES IN |
| Specification/standard Data | 81205-BACN10LE MANUFACTURERS STANDARD |
| Distance From Aperture Center to Mounting Hole Center | 0.339 INCHES MINIMUM AND 0.349 INCHES MAXIMUM IN |
| Locking Feature | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| Center to Center Distance Between Mounting Holes Along Length | 0.686 INCHES MINIMUM AND 0.690 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM NUT |
| Surface Treatment | ANODIZE SHELL |
| Nut Style | PLATE |
| Thread Class | 3B |
| Thread Quantity Per Inch | 32 |
| Material | ALUMINUM ALLOY 5052 OR ALUMINUM ALLOY 6061 SHELL |
| Material | STEEL COMP 1137 OR STEEL COMP 1117 OR STEEL COMP 1118 NUT |
| 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 |
|---|---|
| BACN10RL3A4 | Howmet Global Fastening Systems Inc. Div Microdot Products (USA) |
| BACN10RL3A4 | Republic Fastener Mfg. Corp. Dba Arconic Fastening Systems (USA) |
| Reference | Meaning |
|---|---|
| S2A-34 | 5/9 Secondary reference Qualified Air Components Inc. |
| BR2020A4-3 | 5/9 Secondary reference Republic Fastener Mfg. Corp. Dba Arconic Fastening Systems |
| BACN10RL3A4 | 3/2 Design control — primary reference U.S. Government activity |
| 9600D-02-4 | 5/9 Secondary reference U.S. Government activity |
| BACN10LE-A34 | 5/9 Secondary reference U.S. Government activity |
| 2000-A34 | 5/9 Secondary reference U.S. Government activity |
| BACN10RL3A4 | 5/2 Secondary reference U.S. Government activity |
NSN 5310-01-026-0816 is a Nut,self-Locking,plate, manufactured by Howmet Global Fastening Systems Inc. Div Microdot Products, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-026-0816 has 2 manufacturer part numbers on file: BACN10RL3A4 (Howmet Global Fastening Systems Inc. Div Microdot Products), BACN10RL3A4 (Republic Fastener Mfg. Corp. Dba Arconic Fastening Systems).
Key specifications for BACN10RL3A4: Overall Height: 0.640 INCHES MAXIMUM IN; Plate Thickness: 0.050 INCHES MINIMUM IN; Nut Length: 0.980 INCHES MAXIMUM IN; Surface Treatment Document and Classification: MIL-A-8625A MIL SPEC SINGLE TREATMENT RESPONSE SHELL A. 22 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.