The Washer,flat, cataloged under National Stock Number 5310-00-441-1102, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 9 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-441-1102 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Overall Diameter | 1.234 INCHES MINIMUM AND 1.266 INCHES MAXIMUM IN |
| Material Document and Classification | QQ-S-624, COMP 4130 OR 4140, COND CF OR HR FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Surface Treatment | CADMIUM OVERALL |
| Peripheral Shape Style | ROUND |
| Material | STEEL COMP 4130 OR STEEL COMP 4140 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.437 INCHES MINIMUM AND 0.469 INCHES MAXIMUM IN |
| Thickness | 0.089 INCHES MINIMUM AND 0.099 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 |
| Reference | Meaning |
|---|---|
| 63B52152-7 | 3/2 Design control — primary reference U.S. Government activity |
| 63B52152-7 | 5/9 Secondary reference U.S. Government activity |
NSN 5310-00-441-1102 is a Washer,flat, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-00-441-1102: Overall Diameter: 1.234 INCHES MINIMUM AND 1.266 INCHES MAXIMUM IN; Material Document and Classification: QQ-S-624, COMP 4130 OR 4140, COND CF OR HR FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: RECTANGULAR; Special Features: WASHER,FLAT; STEEL; CADMIUM PLATED; 1.234 IN. MIN, 1.266 IN. MAX O/A DIA, 0.437 IN. MAX,0.469 IN. MAX CENTER HOLE DIA, 0.089 IN. MIN, 0.099 IN. MAX CROSS-SECT THK IN. 9 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.