The Washer,flat, cataloged under National Stock Number 5310-00-145-1807, 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 11 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. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-145-1807 |
| Primary Part Number | 710001-9 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Hamilton Sundstrand Corporation Dba Collins Aerospace |
| Status | ACTIVE |
| Surface Finish | 63.0 MICROINCHES BOTTOM |
| Surface Finish | 63.0 MICROINCHES TOP |
| Overall Diameter | 1.461 INCHES MINIMUM AND 1.471 INCHES MAXIMUM IN |
| Hardness Rating | 45.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM |
| Material Document and Classification | MIL-S-7947 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | STEEL OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.498 INCHES MINIMUM AND 0.505 INCHES MAXIMUM IN |
| Thickness | 0.027 INCHES MINIMUM AND 0.029 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 |
|---|---|
| 710001-9 PRIMARY | Hamilton Sundstrand Corporation Dba Collins Aerospace (USA) |
NSN 5310-00-145-1807 is a Washer,flat, manufactured by Hamilton Sundstrand Corporation Dba Collins Aerospace, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-145-1807 has 1 manufacturer part number on file: 710001-9 (Hamilton Sundstrand Corporation Dba Collins Aerospace).
2 possible matches (shared part number, not a government interchangeability claim): 4810-01-564-1477, 7025-01-649-8203. Verify interchangeability with system specifications before substitution.
Key specifications for 710001-9: Surface Finish: 63.0 MICROINCHES BOTTOM; Surface Finish: 63.0 MICROINCHES TOP; Overall Diameter: 1.461 INCHES MINIMUM AND 1.471 INCHES MAXIMUM IN; Hardness Rating: 45.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM. 11 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.