The Washer,flat, cataloged under National Stock Number 5310-00-079-9657, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 11 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-079-9657 |
| Primary Part Number | 487054CL9 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Surface Finish | 63.0 MICROINCHES BOTTOM |
| Surface Finish | 63.0 MICROINCHES OUTER |
| Surface Finish | 63.0 MICROINCHES TOP |
| Overall Diameter | 0.932 INCHES MINIMUM AND 0.936 INCHES MAXIMUM IN |
| Material Document and Classification | AMS 5613 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | STEEL COMP 410 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.540 INCHES MINIMUM AND 0.550 INCHES MAXIMUM IN |
| Thickness | 0.060 INCHES MINIMUM AND 0.062 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 |
|---|---|
| 487054CL9 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| Reference | Meaning |
|---|---|
| 487054CL9 | 5/9 Secondary reference Moeller Mfg. Company, Llc Div Aircraft |
| 487054CL9 | 5/9 Secondary reference Jdmc Enterprises Dba High Speed Machine Products |
| 487054CL9 | 5/9 Secondary reference Royal Oak Gage, Inc |
NSN 5310-00-079-9657 is a Washer,flat, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-079-9657 has 1 manufacturer part number on file: 487054CL9 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
Key specifications for 487054CL9: Surface Finish: 63.0 MICROINCHES BOTTOM; Surface Finish: 63.0 MICROINCHES OUTER; Surface Finish: 63.0 MICROINCHES TOP; Overall Diameter: 0.932 INCHES MINIMUM AND 0.936 INCHES MAXIMUM IN. 11 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.