The Washer,recessed, cataloged under National Stock Number 5310-01-044-2897, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Eaton Aerospace, Llc Dba Jackson South. Government technical data includes 9 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 | 5310-01-044-2897 |
| Primary Part Number | 407637 |
| Item Name | Washer,recessed |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Eaton Aerospace, Llc Dba Jackson South |
| Status | ACTIVE |
| Surface Treatment Document and Classification | VS1-3-1-15,FSCM 62983 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Style Designator | RECESSED |
| Material Document and Classification | VS1-1-8-3,FSCM 62983 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 1.616 INCHES MINIMUM AND 1.618 INCHES MAXIMUM IN |
| Recess Depth | 0.131 INCHES NOMINAL IN |
| Material Thickness | 0.039 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE OVERALL |
| Material | STEEL CORROSION RESISTING OVERALL |
| Hole Diameter | 1.250 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 |
|---|---|
| 407637 PRIMARY | Eaton Aerospace, Llc Dba Jackson South (USA) |
NSN 5310-01-044-2897 is a Washer,recessed, manufactured by Eaton Aerospace, Llc Dba Jackson South, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-044-2897 has 1 manufacturer part number on file: 407637 (Eaton Aerospace, Llc Dba Jackson South).
Key specifications for 407637: Overall Height: 0.156 INCHES NOMINAL IN; Surface Treatment Document and Classification: VS1-3-1-15,FSCM 62983 MFR REF SINGLE TREATMENT RESPONSE OVERALL; Style Designator: RECESSED; Material Document and Classification: VS1-1-8-3,FSCM 62983 MFR REF SINGLE MATERIAL RESPONSE OVERALL. 9 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.