The Washer,flat, cataloged under National Stock Number 5310-00-033-5329, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Kelly Manufacturing Company. Government technical data includes 8 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-033-5329 |
| Primary Part Number | C63-105 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Kelly Manufacturing Company |
| Status | ACTIVE |
| Overall Diameter | 0.188 INCHES NOMINAL IN |
| Material Document and Classification | QQ-B-611 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | COPPER ALLOY C OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.127 INCHES MINIMUM AND 0.129 INCHES MAXIMUM IN |
| Thickness | 0.015 INCHES MINIMUM AND 0.017 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 |
|---|---|
| C63-105 PRIMARY | Kelly Manufacturing Company (USA) |
| Reference | Meaning |
|---|---|
| C63-105 | 5/9 Secondary reference Allen R C Instruments Inc |
| C63105 | 5/9 Secondary reference Allen R C Instruments Inc |
| C63-105 | 5/9 Secondary reference Allen R C Co Inc Cash Register Div |
| C63105 | 5/9 Secondary reference Allen R C Co Inc Cash Register Div |
NSN 5310-00-033-5329 is a Washer,flat, manufactured by Kelly Manufacturing Company, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-033-5329 has 1 manufacturer part number on file: C63-105 (Kelly Manufacturing Company).
Key specifications for C63-105: Overall Diameter: 0.188 INCHES NOMINAL IN; Material Document and Classification: QQ-B-611 FED SPEC SINGLE 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.