The Washer,flat, cataloged under National Stock Number 5310-01-194-0698, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is All Power Manufacturing Co.. Government technical data includes 10 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-194-0698 |
| Primary Part Number | 4M27C6 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | All Power Manufacturing Co. |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Overall Diameter | 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN |
| Material Document and Classification | MIL-S-5059 MIL SPEC 1ST MATERIAL RESPONSE OR QQ-S-763 FED SPEC 1ST MATERIAL RESPONSE OR MIL-T-8506,TYPE I ANNEALED MIL SPEC 2ND MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Surface Treatment | PASSIVATE OVERALL |
| Peripheral Shape Style | ROUND |
| Material | STEEL COMP 302 OR STEEL COMP 304 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.191 INCHES MINIMUM AND 0.201 INCHES MAXIMUM IN |
| Thickness | 0.029 INCHES MINIMUM AND 0.035 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 |
|---|---|
| 4M27C6 PRIMARY | All Power Manufacturing Co. (USA) |
| 4M27C6 PRIMARY | Anillo Industries Llc (USA) |
| 4M27C6 PRIMARY | Tect Hypervelocity, Inc. (USA) |
| 4M27C6 PRIMARY | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| 4M27C6 | 5/9 Secondary reference Pioneer Machine Products Inc. |
| 10110121 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 4M27C6 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-01-194-0698 is a Washer,flat, manufactured by All Power Manufacturing Co., classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-194-0698 has 4 manufacturer part numbers on file: 4M27C6 (All Power Manufacturing Co.), 4M27C6 (Anillo Industries Llc), 4M27C6 (Tect Hypervelocity, Inc.), 4M27C6 (The Boeing Company Div Defense).
Key specifications for 4M27C6: Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Overall Diameter: 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN; Material Document and Classification: MIL-S-5059 MIL SPEC 1ST MATERIAL RESPONSE OR QQ-S-763 FED SPEC 1ST MATERIAL RESPONSE OR MIL-T-8506,TYPE I ANNEALED MIL SPEC 2ND MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: RECTANGULAR. 10 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.