The Washer,flat, cataloged under National Stock Number 5310-01-392-1664, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is L3 Technologies, Inc. Div Ocean Systems. Government technical data includes 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-392-1664 |
| Primary Part Number | 3123024-92 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | L3 Technologies, Inc. Div Ocean Systems |
| Status | ACTIVE |
| Overall Diameter | 0.595 INCHES NOMINAL IN |
| Material Document and Classification | MIL-S-5059A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL A |
| Cross-Sectional Shape Style | RECTANGULAR |
| Surface Treatment | PASSIVATE OVERALL |
| Peripheral Shape Style | ROUND |
| Material | STEEL OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.442 INCHES NOMINAL IN |
| Thickness | 0.020 INCHES NOMINAL IN |
| 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 |
|---|---|
| 3123024-92 PRIMARY | L3 Technologies, Inc. Div Ocean Systems (USA) |
| Reference | Meaning |
|---|---|
| 3123024-92 | 5/9 Secondary reference Allied-Signal Inc Dba Allied-Signal Aerospace Co Electrodynamics Div |
NSN 5310-01-392-1664 is a Washer,flat, manufactured by L3 Technologies, Inc. Div Ocean Systems, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-392-1664 has 1 manufacturer part number on file: 3123024-92 (L3 Technologies, Inc. Div Ocean Systems).
Key specifications for 3123024-92: Overall Diameter: 0.595 INCHES NOMINAL IN; Material Document and Classification: MIL-S-5059A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL A; Cross-Sectional Shape Style: RECTANGULAR; Surface Treatment: PASSIVATE OVERALL. 9 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.