The Washer,flat, cataloged under National Stock Number 5310-01-213-8335, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Hydro-Aire Aerospace Corp. Dba Lear Romec Div Lear Romec. Government technical data includes 10 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-213-8335 |
| Primary Part Number | RD37157 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Hydro-Aire Aerospace Corp. Dba Lear Romec Div Lear Romec |
| Status | ACTIVE |
| Surface Treatment Document and Classification | CP-320,TY 1,CL 1,FSCM 51663 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Overall Diameter | 1.555 INCHES MINIMUM AND 1.560 INCHES MAXIMUM IN |
| Material Document and Classification | QQ-A-200/3,T4 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-225/6,T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Surface Treatment | ANODIZE OVERALL |
| Peripheral Shape Style | ROUND |
| Material | ALUMINUM ALLOY 2024 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.906 INCHES NOMINAL IN |
| Thickness | 0.280 INCHES MINIMUM AND 0.285 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 |
|---|---|
| RD37157 PRIMARY | Hydro-Aire Aerospace Corp. Dba Lear Romec Div Lear Romec (USA) |
NSN 5310-01-213-8335 is a Washer,flat, manufactured by Hydro-Aire Aerospace Corp. Dba Lear Romec Div Lear Romec, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-213-8335 has 1 manufacturer part number on file: RD37157 (Hydro-Aire Aerospace Corp. Dba Lear Romec Div Lear Romec).
Key specifications for RD37157: Surface Treatment Document and Classification: CP-320,TY 1,CL 1,FSCM 51663 MFR REF SINGLE TREATMENT RESPONSE OVERALL; Overall Diameter: 1.555 INCHES MINIMUM AND 1.560 INCHES MAXIMUM IN; Material Document and Classification: QQ-A-200/3,T4 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-225/6,T4 FED SPEC SINGLE 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.