The Nut,self-Locking,plate, cataloged under National Stock Number 5310-00-936-4543, 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-936-4543 |
| Primary Part Number | ST4M134-3-15 |
| Item Name | Nut,self-Locking,plate |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Plate Thickness | 0.060 INCHES NOMINAL IN |
| Nut Length | 0.985 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | MIL-C-5541 MIL SPEC SINGLE TREATMENT RESPONSE SHELL |
| Thread Series | UNF |
| Plate Width | 0.396 INCHES NOMINAL IN |
| Mounting Hole Arrangement Style | 2 HOLES |
| Material Document and Classification | AMS 7245 ASSN STD SINGLE MATERIAL RESPONSE LOCKING INSERT |
| Material Document and Classification | MIL-A-12545 MIL SPEC SINGLE MATERIAL RESPONSE SHELL |
| Mounting Hole Diameter | 0.098 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.190 INCHES IN |
| Distance From Aperture Center to Mounting Hole Center | 0.344 INCHES NOMINAL IN |
| Locking Feature | PREVAILING TORQUE WITH METALLIC INSERT |
| Center to Center Distance Between Mounting Holes Along Length | 0.686 INCHES MINIMUM AND 0.690 INCHES MAXIMUM IN |
| Nut Height | 1.500 INCHES NOMINAL IN |
| Surface Treatment | OXIDE FILM SHELL |
| Nut Style | PLATE |
| Thread Class | 2B |
| Thread Quantity Per Inch | 32 |
| Material | STEEL CORROSION RESISTING LOCKING INSERT |
| Material | ALUMINUM ALLOY 6061 SHELL |
| 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 |
|---|---|
| ST4M134-3-15 PRIMARY | The Boeing Company Div Defense (USA) |
| ST4M134-3-15 | Monadnock Company, the Dba Lisi Aerospace (USA) |
| Reference | Meaning |
|---|---|
| WSI-7-15 | 5/9 Secondary reference Atlas Corp Western Sky Industries Div |
| WSI-4-15D | 5/9 Secondary reference Atlas Corp Western Sky Industries Div |
| 5365-003-1-15 | 5/9 Secondary reference Aidc/aerospace Industrial Development Corp. Dba Aidc |
| 10121856 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| WSI4-15 | 3/9 Design control — primary reference Atlas Corp Western Sky Industries Div |
NSN 5310-00-936-4543 is a Nut,self-Locking,plate, manufactured by The Boeing Company Div Defense, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-936-4543 has 2 manufacturer part numbers on file: ST4M134-3-15 (The Boeing Company Div Defense), ST4M134-3-15 (Monadnock Company, the Dba Lisi Aerospace).
2 possible matches (shared part number, not a government interchangeability claim): 5310-01-169-5562, 5340-01-521-4396. Verify interchangeability with system specifications before substitution.
Key specifications for ST4M134-3-15: Plate Thickness: 0.060 INCHES NOMINAL IN; Nut Length: 0.985 INCHES NOMINAL IN; Surface Treatment Document and Classification: MIL-C-5541 MIL SPEC SINGLE TREATMENT RESPONSE SHELL; 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.