The Washer,recessed, cataloged under National Stock Number 5310-00-209-1695, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Textron Aviation Inc. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-209-1695 |
| Primary Part Number | 4025915 |
| Item Name | Washer,recessed |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Textron Aviation Inc |
| Status | ACTIVE |
| Surface Treatment Document and Classification | S-137 F4-1 FSCM 71379 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Heat Treatment | T-4 SOLUTION HEAT TREATED, NATURAL AGED |
| Style Designator | RECESSED |
| Material Document and Classification | QQ-A-225/6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.809 INCHES MINIMUM AND 0.811 INCHES MAXIMUM IN |
| Recess Depth | 0.104 INCHES MINIMUM AND 0.108 INCHES MAXIMUM IN |
| Material Thickness | 0.0255 INCHES NOMINAL IN |
| Surface Treatment | ANODIZE OVERALL |
| Material | ALUMINUM ALLOY 2024 OVERALL |
| Hole Diameter | 0.505 INCHES MINIMUM AND 0.515 INCHES MAXIMUM 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 |
|---|---|
| 4025915 PRIMARY | Textron Aviation Inc (USA) |
| Reference | Meaning |
|---|---|
| 4025915 | 3/9 Design control — primary reference Cessna Aircraft Company Dba Textron Aviation |
| 1N775K | C/1 Advisory reference — outside the item-of-supply concept In Speck Corp Dba in Speck Corp |
NSN 5310-00-209-1695 is a Washer,recessed, manufactured by Textron Aviation Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-209-1695 has 1 manufacturer part number on file: 4025915 (Textron Aviation Inc).
Key specifications for 4025915: Overall Height: 0.138 INCHES MINIMUM AND 0.142 INCHES MAXIMUM IN; Surface Treatment Document and Classification: S-137 F4-1 FSCM 71379 MFR REF SINGLE TREATMENT RESPONSE OVERALL; Heat Treatment: T-4 SOLUTION HEAT TREATED, NATURAL AGED; Style Designator: RECESSED. 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.