The Washer,flat, cataloged under National Stock Number 5310-01-124-4468, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 4 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-01-124-4468 |
| Primary Part Number | 65160-00049-102 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
| Status | ACTIVE |
| Surface Finish | 90.0 MICROINCHES ALL SURFACES |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 2 FED SPEC 1ST TREATMENT RESPONSE OR QQ-P-416,TY 3,CL 2 FED SPEC 2ND TREATMENT RESPONSE OVERALL |
| Overall Diameter | 1.000 INCHES NOMINAL IN |
| Hardness Rating | 26.0 ROCKWELL C MINIMUM AND 33.0 ROCKWELL C MAXIMUM |
| Material Document and Classification | MIL-S-18729 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Surface Treatment | CADMIUM AND CHROMATE OR CADMIUM AND PHOSPHATE OVERALL |
| Minimum Tensile Strength | 125000 POUNDS PER SQUARE INCH LBS |
| Peripheral Shape Style | ROUND |
| Material | STEEL COMP 4130 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.5313 INCHES NOMINAL IN |
| Thickness | 0.090 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 |
|---|---|
| 65160-00049-102 | Standard Aero Parts, Inc (USA) |
| 65160-00049-102 PRIMARY | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
| 65160-00049-102 | Beta Shim Co. Dba Beta Shim Co Div Beta Shim Company (USA) |
| 65160-00049-102 | Dial Supply & Mfg, Inc (USA) |
| Reference | Meaning |
|---|---|
| 393088-04 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| RY-184913 PIECE 25.4 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 5310-01-124-4468 is a Washer,flat, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-124-4468 has 4 manufacturer part numbers on file: 65160-00049-102 (Standard Aero Parts, Inc), 65160-00049-102 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp), 65160-00049-102 (Beta Shim Co. Dba Beta Shim Co Div Beta Shim Company), 65160-00049-102 (Dial Supply & Mfg, Inc).
Key specifications for 65160-00049-102: Surface Finish: 90.0 MICROINCHES ALL SURFACES; Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 2 FED SPEC 1ST TREATMENT RESPONSE OR QQ-P-416,TY 3,CL 2 FED SPEC 2ND TREATMENT RESPONSE OVERALL; Overall Diameter: 1.000 INCHES NOMINAL IN; Hardness Rating: 26.0 ROCKWELL C MINIMUM AND 33.0 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.