The Washer,flat, cataloged under National Stock Number 5310-01-321-8064, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is L3 Technologies, Inc. Div L3 Keo. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-321-8064 |
| Primary Part Number | 146B924001-18 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | L3 Technologies, Inc. Div L3 Keo |
| Status | ACTIVE |
| Overall Diameter | 0.560 INCHES NOMINAL IN |
| Material Document and Classification | QQ-N-281,CL A FED SPEC 1ST MATERIAL RESPONSE OR QQ-N-286,CL A FED SPEC 2ND MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | NICKEL ALLOY 400 OR NICKEL ALLOY K-500 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.328 INCHES NOMINAL IN |
| Thickness | 0.063 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 |
|---|---|
| 146B924001-18 | Fastener Components Inc (USA) |
| 146B924001-18 PRIMARY | L3 Technologies, Inc. Div L3 Keo (USA) |
NSN 5310-01-321-8064 is a Washer,flat, manufactured by L3 Technologies, Inc. Div L3 Keo, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-321-8064 has 2 manufacturer part numbers on file: 146B924001-18 (Fastener Components Inc), 146B924001-18 (L3 Technologies, Inc. Div L3 Keo).
Key specifications for 146B924001-18: Overall Diameter: 0.560 INCHES NOMINAL IN; Material Document and Classification: QQ-N-281,CL A FED SPEC 1ST MATERIAL RESPONSE OR QQ-N-286,CL A FED SPEC 2ND MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: RECTANGULAR; Peripheral Shape Style: ROUND. 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.