The Retainer,nut and Bolt, cataloged under National Stock Number 5340-01-381-9890, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 7 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. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-381-9890 |
| Primary Part Number | 6404052 FIND #123 |
| Item Name | Retainer,nut and Bolt |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Distance Between Mounting Hole Centers | 3.600 INCHES NOMINAL IN |
| Style Designator | ANCHOR |
| Material Document and Classification | QQ-N-281, CLASS A FED SPEC SINGLE MATERIAL RESPONSE |
| Mounting Hole Diameter | 0.422 INCHES MINIMUM AND 0.432 INCHES MAXIMUM IN |
| Material Thickness | 0.062 INCHES NOMINAL IN |
| Center to Center Distance Between Cup and Mounting Hole | 1.800 INCHES NOMINAL IN |
| Material | NICKEL ALLOY 400 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| 6404052 FIND #123 PRIMARY | Naval Sea Systems Command (USA) |
NSN 5340-01-381-9890 is a Retainer,nut and Bolt, manufactured by Naval Sea Systems Command, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-381-9890 has 1 manufacturer part number on file: 6404052 FIND #123 (Naval Sea Systems Command).
Key specifications for 6404052 FIND #123: Overall Height: 0.062 INCHES NOMINAL IN; Distance Between Mounting Hole Centers: 3.600 INCHES NOMINAL IN; Style Designator: ANCHOR; Material Document and Classification: QQ-N-281, CLASS A FED SPEC SINGLE MATERIAL RESPONSE. 7 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.