The Washer,flat, cataloged under National Stock Number 5310-00-929-8530, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Eaton Aerospace, Llc Dba Jackson South. Government technical data includes 9 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 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-929-8530 |
| Primary Part Number | 297056 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Eaton Aerospace, Llc Dba Jackson South |
| Status | ACTIVE |
| Surface Treatment Document and Classification | VS1-3-1-61,FSCM 62983 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Overall Diameter | 0.390 INCHES MINIMUM AND 0.410 INCHES MAXIMUM IN |
| Cross-Sectional Shape Style | RECTANGULAR |
| Surface Treatment | CADMIUM OVERALL |
| Peripheral Shape Style | ROUND |
| Material | STEEL OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.193 INCHES MINIMUM AND 0.213 INCHES MAXIMUM IN |
| Thickness | 0.052 INCHES MINIMUM AND 0.072 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 |
|---|---|
| 297056 PRIMARY | Eaton Aerospace, Llc Dba Jackson South (USA) |
NSN 5310-00-929-8530 is a Washer,flat, manufactured by Eaton Aerospace, Llc Dba Jackson South, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-929-8530 has 1 manufacturer part number on file: 297056 (Eaton Aerospace, Llc Dba Jackson South).
1 possible match (shared part number, not a government interchangeability claim): 8145-01-423-7296. Verify interchangeability with system specifications before substitution.
Key specifications for 297056: Surface Treatment Document and Classification: VS1-3-1-61,FSCM 62983 MFR REF SINGLE TREATMENT RESPONSE OVERALL; Overall Diameter: 0.390 INCHES MINIMUM AND 0.410 INCHES MAXIMUM IN; Cross-Sectional Shape Style: RECTANGULAR; Special Features: PERIPHERY OF ONE BEARING SURFACE CHAMFERED 45 DEG TO A DEPTH OF 0.020 IN. IN. 9 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.