The Washer,flat, cataloged under National Stock Number 5310-00-088-6880, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Hamilton Sundstrand Corporation Dba Collins Aerospace. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-088-6880 |
| Primary Part Number | 589139-25 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Hamilton Sundstrand Corporation Dba Collins Aerospace |
| Status | ACTIVE |
| Overall Diameter | 0.810 INCHES MINIMUM AND 0.814 INCHES MAXIMUM IN |
| Heat Treatment | AS FABRICATED |
| Hardness Rating | 83.0 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 85.5 ROCKWELL SUPERFICIAL 15-N MAXIMUM |
| Material Document and Classification | AMS 5513 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | STEEL COMP 304 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.576 INCHES MINIMUM AND 0.580 INCHES MAXIMUM IN |
| Thickness | 0.077 INCHES MINIMUM AND 0.079 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 |
NSN 5310-00-088-6880 is a Washer,flat, manufactured by Hamilton Sundstrand Corporation Dba Collins Aerospace, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-088-6880 has 2 manufacturer part numbers on file: 589139-25 (Ontic Engineering & Manufacturing, Inc Dba Ontic Us), 589139-25 (Hamilton Sundstrand Corporation Dba Collins Aerospace).
Key specifications for 589139-25: Overall Diameter: 0.810 INCHES MINIMUM AND 0.814 INCHES MAXIMUM IN; Heat Treatment: AS FABRICATED; Hardness Rating: 83.0 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 85.5 ROCKWELL SUPERFICIAL 15-N MAXIMUM; Material Document and Classification: AMS 5513 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.