The Washer,flat, cataloged under National Stock Number 5310-01-597-5553, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Anixter Inc Dba Anixter. Government technical data includes 8 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-01-597-5553 |
| Primary Part Number | WM19.8438.11.58BR/PD |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Anixter Inc Dba Anixter |
| Status | ACTIVE |
| Overall Diameter | 37.3 MILLIMETERS MINIMUM AND 38.9 MILLIMETERS MAXIMUM MM |
| Material Document and Classification | ASTM B36 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | COPPER ALLOY OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 19.6 MILLIMETERS MINIMUM AND 20.2 MILLIMETERS MAXIMUM MM |
| Thickness | 1.3 MILLIMETERS MINIMUM AND 1.8 MILLIMETERS MAXIMUM MM |
| 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 |
|---|---|
| WM19.8438.11.58BR/PD PRIMARY | Anixter Inc Dba Anixter (USA) |
| Reference | Meaning |
|---|---|
| 04-21609 | D/9 Drawing number reference only Department of Defense Project Manager-Mobile Electric Power |
NSN 5310-01-597-5553 is a Washer,flat, manufactured by Anixter Inc Dba Anixter, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-597-5553 has 1 manufacturer part number on file: WM19.8438.11.58BR/PD (Anixter Inc Dba Anixter).
Key specifications for WM19.8438.11.58BR/PD: Overall Diameter: 37.3 MILLIMETERS MINIMUM AND 38.9 MILLIMETERS MAXIMUM MM; Material Document and Classification: ASTM B36 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: RECTANGULAR; Peripheral Shape Style: ROUND. 8 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.