The Washer,recessed, cataloged under National Stock Number 5310-00-157-9149, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-157-9149 |
| Primary Part Number | 249503PC9 |
| Item Name | Washer,recessed |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Outside Diameter | 0.6695 INCHES NOMINAL IN |
| Material Thickness | 0.0320 INCHES NOMINAL IN |
| Recess Diameter | 0.4885 INCHES NOMINAL IN |
| Material | ALUMINUM OVERALL |
| Hole Diameter | 0.3530 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 |
|---|---|
| 249503PC9 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| Reference | Meaning |
|---|---|
| 249503PC9 | 5/9 Secondary reference Krdc Inc Dba Martin-Palmer Tool & Die Co Div |
NSN 5310-00-157-9149 is a Washer,recessed, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-157-9149 has 1 manufacturer part number on file: 249503PC9 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
Key specifications for 249503PC9: Outside Diameter: 0.6695 INCHES NOMINAL IN; Material Thickness: 0.0320 INCHES NOMINAL IN; Recess Diameter: 0.4885 INCHES NOMINAL IN; Material: ALUMINUM OVERALL. 5 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.