The Washer,flat, cataloged under National Stock Number 5310-01-115-5386, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Photo-Sonics, Inc. Dba Photo-Sonics Inc Div Photo-Sonics. Government technical data includes 10 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.
| Parameter | Value |
|---|---|
| NSN | 5310-01-115-5386 |
| Primary Part Number | 69-4538 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Photo-Sonics, Inc. Dba Photo-Sonics Inc Div Photo-Sonics |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Overall Diameter | 0.437 INCHES NOMINAL IN |
| Material Document and Classification | QQ-S-766 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Surface Treatment | PASSIVATE OVERALL |
| Peripheral Shape Style | ROUND |
| Material | STEEL COMP 302 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.378 INCHES NOMINAL IN |
| Thickness | 0.027 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 |
|---|---|
| 69-4538 PRIMARY | Photo-Sonics, Inc. Dba Photo-Sonics Inc Div Photo-Sonics (USA) |
NSN 5310-01-115-5386 is a Washer,flat, manufactured by Photo-Sonics, Inc. Dba Photo-Sonics Inc Div Photo-Sonics, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-115-5386 has 1 manufacturer part number on file: 69-4538 (Photo-Sonics, Inc. Dba Photo-Sonics Inc Div Photo-Sonics).
Key specifications for 69-4538: Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Overall Diameter: 0.437 INCHES NOMINAL IN; Material Document and Classification: QQ-S-766 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: RECTANGULAR. 10 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.