The Nut,self-Locking,plate, cataloged under National Stock Number 5310-01-129-9072, 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 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5310-01-129-9072 |
| Primary Part Number | ST4M132-3-75 |
| Item Name | Nut,self-Locking,plate |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Plate Thickness | 0.040 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN |
| Nut Length | 1.250 INCHES MINIMUM AND 1.270 INCHES MAXIMUM IN |
| Distance From Mounting Hole Center to Base | 0.250 INCHES NOMINAL IN |
| Thread Series | UNF |
| Plate Width | 1.570 INCHES MAXIMUM IN |
| Temp Rating | 300.0 FAHRENHEIT MAXIMUM DEGF |
| Mounting Hole Arrangement Style | 2 HOLES |
| Distance From Base to Center of Aperture | 0.300 INCHES MINIMUM AND 0.320 INCHES MAXIMUM IN |
| Material Document and Classification | AMS 7245 ASSN STD SINGLE MATERIAL RESPONSE LOCKING INSERT |
| Material Document and Classification | QQ-A-367,TEMPER T6 FED SPEC ALL MATERIAL RESPONSES OVERALL EXCEPT INSERT |
| Mounting Hole Diameter | 0.123 INCHES MINIMUM AND 0.133 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND |
| Center to Center Distance Between Mounting Holes Along Width | 0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM IN |
| Nominal Thread Size | 0.190 INCHES IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Nut Height | 1.190 INCHES MINIMUM AND 1.210 INCHES MAXIMUM IN |
| Nut Style | PLATE |
| Thread Class | 2B |
| Thread Quantity Per Inch | 32 |
| Material | STEEL CORROSION RESISTING LOCKING INSERT |
| Material | ALUMINUM ALLOY 2219 OR ALUMINUM ALLOY 2014 OVERALL EXCEPT INSERT |
| 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 |
|---|---|
| ST4M132-3-75 | Monadnock Company, the Dba Lisi Aerospace (USA) |
| ST4M132-3-75 PRIMARY | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| WSI-332-75D | 5/9 Secondary reference Atlas Corp Western Sky Industries Div |
| WSI-332-75 | 5/9 Secondary reference Atlas Corp Western Sky Industries Div |
| ST4M132-3-75 | 5/2 Secondary reference U.S. Government activity |
| 10109550 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 5310-01-129-9072 is a Nut,self-Locking,plate, manufactured by The Boeing Company Div Defense, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-129-9072 has 2 manufacturer part numbers on file: ST4M132-3-75 (Monadnock Company, the Dba Lisi Aerospace), ST4M132-3-75 (The Boeing Company Div Defense).
1 possible match (shared part number, not a government interchangeability claim): 5365-01-181-0414. Verify interchangeability with system specifications before substitution.
Key specifications for ST4M132-3-75: Plate Thickness: 0.040 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN; Nut Length: 1.250 INCHES MINIMUM AND 1.270 INCHES MAXIMUM IN; Distance From Mounting Hole Center to Base: 0.250 INCHES NOMINAL IN; Thread Series: UNF. 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.