The Nut,self-Locking,plate, cataloged under National Stock Number 5310-00-550-9000, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is L3harris Technologies, Inc Div Space & Airborne Systems. 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. 4 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 | 5310-00-550-9000 |
| Primary Part Number | 73385 |
| Item Name | Nut,self-Locking,plate |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | L3harris Technologies, Inc Div Space & Airborne Systems |
| Status | ACTIVE |
| Plate Thickness | 0.125 INCHES NOMINAL IN |
| Nut Length | 1.375 INCHES NOMINAL IN |
| Distance From Mounting Hole Center to Base | 1.125 INCHES NOMINAL IN |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Plate Width | 0.625 INCHES NOMINAL IN |
| Material Document and Classification | 66 FED STD SINGLE MATERIAL RESPONSE NUT |
| Material Document and Classification | QQ-W-766 FED SPEC SINGLE MATERIAL RESPONSE BASE |
| Mounting Hole Diameter | 0.169 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND |
| Center to Center Distance Between Mounting Holes Along Width | 0.313 INCHES NOMINAL IN |
| Nominal Thread Size | 0.138 INCHES IN |
| Distance From Aperture Center to Mounting Hole Center | 0.875 INCHES NOMINAL IN |
| Locking Feature | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| Nut Height | 0.335 INCHES MINIMUM AND 0.368 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM NUT |
| Thread Class | 2B |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP 1212 NUT |
| Material | PLASTIC POLYAMIDE NYLON LOCKING INSERT |
| Material | STEEL COMP 304 BASE |
| 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 |
|---|---|
| 73385 PRIMARY | L3harris Technologies, Inc Div Space & Airborne Systems (USA) |
NSN 5310-00-550-9000 is a Nut,self-Locking,plate, manufactured by L3harris Technologies, Inc Div Space & Airborne Systems, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-550-9000 has 1 manufacturer part number on file: 73385 (L3harris Technologies, Inc Div Space & Airborne Systems).
4 possible matches (shared part number, not a government interchangeability claim): 3120-01-101-8089, 6515-01-266-6546, 4730-01-596-7650. Verify interchangeability with system specifications before substitution.
Key specifications for 73385: Plate Thickness: 0.125 INCHES NOMINAL IN; Nut Length: 1.375 INCHES NOMINAL IN; Distance From Mounting Hole Center to Base: 1.125 INCHES NOMINAL IN; Thread Series: UNIFIED NATIONAL COARSE (UNC). 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.