The Washer,flat, cataloged under National Stock Number 5310-00-045-7626, 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 10 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-045-7626 |
| Primary Part Number | S6112-21010-103 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-A-8625 MIL SPEC 1ST TREATMENT RESPONSE OR MIL-C-5541 MIL SPEC 2ND TREATMENT RESPONSE OVERALL |
| Overall Diameter | 1.375 INCHES NOMINAL IN |
| Material Document and Classification | QQ-A-250/1 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-250/2 FED SPEC 2ND MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Surface Treatment | ANODIZE OR CHROMATE OVERALL |
| Peripheral Shape Style | ROUND |
| Material | ALUMINUM ALLOY 1100 OR ALUMINUM ALLOY 3003 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 1.015 INCHES NOMINAL IN |
| Thickness | 0.016 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 |
|---|---|
| S6112-21010-103 | Leonardo Uk Ltd (GBR) |
| S6112-21010-103 | Rotair Aerospace Corp (USA) |
| S6112-21010-103 | Beta Shim Co. Dba Beta Shim Co Div Beta Shim Company (USA) |
| S6112-21010-103 PRIMARY | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
| R6112-21010-103 | Rotair Aerospace Corp (USA) |
NSN 5310-00-045-7626 is a Washer,flat, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-045-7626 has 5 manufacturer part numbers on file: S6112-21010-103 (Leonardo Uk Ltd), S6112-21010-103 (Rotair Aerospace Corp), S6112-21010-103 (Beta Shim Co. Dba Beta Shim Co Div Beta Shim Company), S6112-21010-103 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp), R6112-21010-103 (Rotair Aerospace Corp).
Key specifications for S6112-21010-103: Surface Treatment Document and Classification: MIL-A-8625 MIL SPEC 1ST TREATMENT RESPONSE OR MIL-C-5541 MIL SPEC 2ND TREATMENT RESPONSE OVERALL; Overall Diameter: 1.375 INCHES NOMINAL IN; Material Document and Classification: QQ-A-250/1 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-250/2 FED 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.