The Washer,recessed, cataloged under National Stock Number 5310-00-596-4648, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is General Electric Company. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-00-596-4648 |
| Primary Part Number | 612A225P1 |
| Item Name | Washer,recessed |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | General Electric Company |
| Status | ACTIVE |
| Style Designator | RECESSED |
| Material Document and Classification | AMS 5510 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.460 INCHES MINIMUM AND 0.470 INCHES MAXIMUM IN |
| Material Thickness | 0.028 INCHES MINIMUM AND 0.036 INCHES MAXIMUM IN |
| Recess Diameter | 0.275 INCHES MINIMUM AND 0.290 INCHES MAXIMUM IN |
| Material | STEEL COMP 321 OVERALL |
| Hole Diameter | 0.255 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN |
| Recess Angle | 45.0 DEGREES NOMINAL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| SRS612A225 | Defense Logistics Agency Dba Defense Supply Center Philadelphia (USA) |
| 612A225P1 PRIMARY | General Electric Company (USA) |
| 612A225P1 | Mtu Aero Engines Ag (DEU) |
| Reference | Meaning |
|---|---|
| 612A225P1 | 5/9 Secondary reference General Electric Company |
| 5310PL0785154 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 5310-00-596-4648 is a Washer,recessed, manufactured by General Electric Company, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-596-4648 has 3 manufacturer part numbers on file: SRS612A225 (Defense Logistics Agency Dba Defense Supply Center Philadelphia), 612A225P1 (General Electric Company), 612A225P1 (Mtu Aero Engines Ag).
Key specifications for 612A225P1: Style Designator: RECESSED; Material Document and Classification: AMS 5510 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 0.460 INCHES MINIMUM AND 0.470 INCHES MAXIMUM IN; Material Thickness: 0.028 INCHES MINIMUM AND 0.036 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.