The Nut,self-Locking,plate, cataloged under National Stock Number 5310-01-166-6148, 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 21 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5310-01-166-6148 |
| Primary Part Number | F12342-6-3 |
| Item Name | Nut,self-Locking,plate |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Sps Technologies, Llc Dba PB Fasteners |
| Status | ACTIVE |
| Lubrication | DRY FILM LUBRICANT |
| Plate Thickness | 0.047 INCHES MAXIMUM IN |
| Nut Length | 0.739 INCHES MAXIMUM IN |
| Thread Series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Plate Width | 0.416 INCHES MAXIMUM IN |
| Mounting Hole Arrangement Style | 2 HOLES |
| Material Document and Classification | AMS 5525 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5732 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Mounting Hole Diameter | 0.098 INCHES NOMINAL IN |
| Features Provided | FLOATING NUT |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.190 INCHES IN |
| Distance From Aperture Center to Mounting Hole Center | 0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN |
| Locking Feature | PREVAILING TORQUE WITH METALLIC INSERT |
| Center to Center Distance Between Mounting Holes Along Length | 0.498 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN |
| Nut Height | 0.563 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE SHELL |
| Nut Style | PLATE |
| Thread Class | 3B |
| Thread Quantity Per Inch | 32 |
| Material | IRON ALLOY 660 OVERALL |
| 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 |
|---|---|
| F12342-6-3 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| F12342-6-3 | 5/2 Secondary reference U.S. Government activity |
| F12342-6-3 | 5/9 Secondary reference Harvard Industries Inc |
NSN 5310-01-166-6148 is a Nut,self-Locking,plate, manufactured by Sps Technologies, Llc Dba PB Fasteners, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-166-6148 has 1 manufacturer part number on file: F12342-6-3 (Sps Technologies, Llc Dba PB Fasteners).
1 possible match (shared part number, not a government interchangeability claim): 5310-01-715-8052. Verify interchangeability with system specifications before substitution.
Key specifications for F12342-6-3: Lubrication: DRY FILM LUBRICANT; Plate Thickness: 0.047 INCHES MAXIMUM IN; Nut Length: 0.739 INCHES MAXIMUM IN; Thread Series: UNIFIED NATIONAL JOINT FINE (UNJF). 21 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.