The Washer,flat, cataloged under National Stock Number 5310-01-212-6147, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Naval Air Warfare Center Aircraft Division Code 1.3.1 Bldg 562-1. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-212-6147 |
| Primary Part Number | 4SE00749-1 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Naval Air Warfare Center Aircraft Division Code 1.3.1 Bldg 562-1 |
| Status | ACTIVE |
| Overall Diameter | 2.188 INCHES MINIMUM AND 2.312 INCHES MAXIMUM IN |
| Heat Treatment | COLD DRAWN |
| Hardness Rating | 35.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM |
| Material Document and Classification | ASTM A108 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | STEEL COMP 1141 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 1.219 INCHES MINIMUM AND 1.343 INCHES MAXIMUM IN |
| Thickness | 0.1693 INCHES MINIMUM AND 0.1893 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 |
|---|---|
| 4SE00749-1 PRIMARY | Naval Air Warfare Center Aircraft Division Code 1.3.1 Bldg 562-1 (USA) |
| Reference | Meaning |
|---|---|
| 4SE00749 | D/9 Drawing number reference only U.S. Government activity |
NSN 5310-01-212-6147 is a Washer,flat, manufactured by Naval Air Warfare Center Aircraft Division Code 1.3.1 Bldg 562-1, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-212-6147 has 1 manufacturer part number on file: 4SE00749-1 (Naval Air Warfare Center Aircraft Division Code 1.3.1 Bldg 562-1).
Key specifications for 4SE00749-1: Overall Diameter: 2.188 INCHES MINIMUM AND 2.312 INCHES MAXIMUM IN; Heat Treatment: COLD DRAWN; Hardness Rating: 35.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM; Material Document and Classification: ASTM A108 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 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.