The Washer,flat, cataloged under National Stock Number 5310-01-394-4476, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems. Government technical data includes 7 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-394-4476 |
| Primary Part Number | 5074 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems |
| Status | ACTIVE |
| Overall Diameter | 9.0 MILLIMETERS NOMINAL MM |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | STEEL COMP 316 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 4.3 MILLIMETERS NOMINAL MM |
| Thickness | 0.8 MILLIMETERS NOMINAL MM |
| 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 |
|---|---|
| 5074 PRIMARY | Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems (USA) |
| A4.3/A4/DIN125 | Tigges Gmbh Und Co.kg (DEU) |
NSN 5310-01-394-4476 is a Washer,flat, manufactured by Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-394-4476 has 2 manufacturer part numbers on file: 5074 (Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems), A4.3/A4/DIN125 (Tigges Gmbh Und Co.kg).
Key specifications for 5074: Overall Diameter: 9.0 MILLIMETERS NOMINAL MM; Cross-Sectional Shape Style: RECTANGULAR; Peripheral Shape Style: ROUND; Material: STEEL COMP 316 OVERALL. 7 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.