The Washer,shouldered and Recessed, cataloged under National Stock Number 5310-01-188-0618, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Woodward, Inc. Div Fuel Systems and Controls. Government technical data includes 8 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 | 5310-01-188-0618 |
| Primary Part Number | 3450-040 |
| Item Name | Washer,shouldered and Recessed |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Woodward, Inc. Div Fuel Systems and Controls |
| Status | ACTIVE |
| Shoulder Height | 0.219 INCHES NOMINAL IN |
| Style Designator | SHOULDERED AND RECESSED |
| Outside Diameter | 1.245 INCHES MINIMUM AND 1.248 INCHES MAXIMUM IN |
| Material Thickness | 0.060 INCHES MINIMUM AND 0.064 INCHES MAXIMUM IN |
| Shoulder Diameter | 1.156 INCHES NOMINAL IN |
| Recess Diameter | 0.998 INCHES NOMINAL IN |
| Hole Diameter | 0.938 INCHES NOMINAL IN |
| Recess Angle | 90.0 DEGREES NOMINAL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| 3450-040 PRIMARY | Woodward, Inc. Div Fuel Systems and Controls (USA) |
NSN 5310-01-188-0618 is a Washer,shouldered and Recessed, manufactured by Woodward, Inc. Div Fuel Systems and Controls, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-188-0618 has 1 manufacturer part number on file: 3450-040 (Woodward, Inc. Div Fuel Systems and Controls).
Key specifications for 3450-040: Shoulder Height: 0.219 INCHES NOMINAL IN; Style Designator: SHOULDERED AND RECESSED; Outside Diameter: 1.245 INCHES MINIMUM AND 1.248 INCHES MAXIMUM IN; Material Thickness: 0.060 INCHES MINIMUM AND 0.064 INCHES MAXIMUM IN. 8 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.