The Washer,flat, cataloged under National Stock Number 5310-01-575-4458, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Hartzell Propeller Llc. Government technical data includes 1 specification, 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 | 5310-01-575-4458 |
| Primary Part Number | A169-7 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Hartzell Propeller Llc |
| Status | ACTIVE |
| Material | STEEL CORROSION RESISTING OVERALL |
| 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 |
|---|---|
| A169-7 PRIMARY | Hartzell Propeller Llc (USA) |
NSN 5310-01-575-4458 is a Washer,flat, manufactured by Hartzell Propeller Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-575-4458 has 1 manufacturer part number on file: A169-7 (Hartzell Propeller Llc).
2 possible matches (shared part number, not a government interchangeability claim): 8455-01-647-6414, 8455-01-713-8012. Verify interchangeability with system specifications before substitution.
Key specifications for A169-7: Part Name Assigned by Controlling Agency: SPACER; End Item Identification: PROPELLER; Material: STEEL CORROSION RESISTING OVERALL. 1 specification is 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.