The Nut,clip-on, cataloged under National Stock Number 5310-01-105-2097, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 4 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5310-01-105-2097 |
| Primary Part Number | ST3M523C3M-1 |
| Item Name | Nut,clip-on |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Lubrication | DRY FILM LUBRICANTDRY FILM LUBRICANT |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNFUNF |
| Distance From Base to Center of Aperture | 0.250 INCHES NOMINAL0.250 INCHES NOMINAL IN |
| Material Document and Classification | AMS 5525 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HANDRIGHT-HAND |
| Panel Thickness | 0.180 INCHES NOMINAL0.180 INCHES NOMINAL IN |
| Nominal Thread Size | 0.190 INCHES0.190 INCHES IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGNPREVAILING TORQUE ALL METAL DESIGN |
| Surface Treatment | PASSIVATE OVERALL |
| Nut Style | FLOATINGFLOATING |
| Thread Class | 3B3B |
| Thread Quantity Per Inch | 3232 |
| Material | IRON ALLOY 660 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 |
|---|---|
| 3929AS1226-2 | Vertex Modernization and Sustainment Llc (USA) |
| 13100068 | Monadnock Company, the Dba Lisi Aerospace (USA) |
| A11144-4-3 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| ST3M523C3M-1 PRIMARY | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| 13100002 | 5/9 Secondary reference Monadnock Company, the Dba Lisi Aerospace |
| A11144-4-3 | 5/2 Secondary reference U.S. Government activity |
| A11144-4-3 | 5/9 Secondary reference Harvard Industries Inc |
| 3929AS1226-2 | C/1 Advisory reference — outside the item-of-supply concept Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| 10122147 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 5310-01-105-2097 is a Nut,clip-on, manufactured by The Boeing Company Div Defense, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-105-2097 has 4 manufacturer part numbers on file: 3929AS1226-2 (Vertex Modernization and Sustainment Llc), 13100068 (Monadnock Company, the Dba Lisi Aerospace), A11144-4-3 (Sps Technologies, Llc Dba PB Fasteners), ST3M523C3M-1 (The Boeing Company Div Defense).
1 possible match (shared part number, not a government interchangeability claim): 5910-01-180-1153. Verify interchangeability with system specifications before substitution.
Key specifications for ST3M523C3M-1: Lubrication: DRY FILM LUBRICANTDRY FILM LUBRICANT; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Series: UNFUNF; Distance From Base to Center of Aperture: 0.250 INCHES NOMINAL0.250 INCHES NOMINAL IN. 14 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.