The Washer,recessed, cataloged under National Stock Number 5310-01-066-9076, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Pilatus Aircraft Ltd. Government technical data includes 13 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-066-9076 |
| Primary Part Number | 9387511202 |
| Item Name | Washer,recessed |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Pilatus Aircraft Ltd |
| Status | ACTIVE |
| Top Recess Diameter | 0.399 INCHES MINIMUM AND 0.409 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Bottom Recess Diameter | 0.399 INCHES MINIMUM AND 0.409 INCHES MAXIMUM IN |
| Hardness Rating | 39.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM |
| Top Recess Angle | 90.0 DEGREES NOMINAL |
| Style Designator | RECESSED BOTH SIDES |
| Material Document and Classification | MIL-S-5059,TY 302,1/2 HARD MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-18729 MIL SPEC 2ND MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.610 INCHES MINIMUM AND 0.620 INCHES MAXIMUM IN |
| Material Thickness | 0.114 INCHES MINIMUM AND 0.124 INCHES MAXIMUM IN |
| Bottom Recess Angle | 90.0 DEGREES NOMINAL |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Material | STEEL COMP 4130 OVERALL |
| Hole Diameter | 0.314 INCHES MINIMUM AND 0.318 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 |
|---|---|
| 9387511202 | Pilatus Aircraft Ltd (CHE) |
| Reference | Meaning |
|---|---|
| 5310PL1939943 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| MS14155-5 | 5/9 Secondary reference U.S. Government activity |
| MS14155-5 | 3/2 Design control — primary reference U.S. Government activity |
| 10368745 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 5310-01-066-9076 is a Washer,recessed, manufactured by Pilatus Aircraft Ltd, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-066-9076 has 1 manufacturer part number on file: 9387511202 (Pilatus Aircraft Ltd).
Key specifications for 9387511202: Top Recess Diameter: 0.399 INCHES MINIMUM AND 0.409 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Bottom Recess Diameter: 0.399 INCHES MINIMUM AND 0.409 INCHES MAXIMUM IN; Hardness Rating: 39.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM. 13 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.