The Washer,flat, cataloged under National Stock Number 5310-00-256-3430, 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 8 specifications, cited from the U.S. Government catalog. The record lists 14 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 14 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-256-3430 |
| Primary Part Number | 39461-4PC12 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Eaton Aerospace, Llc Dba Jackson South |
| Status | ACTIVE |
| Overall Diameter | 1.000 INCHES NOMINAL IN |
| Material Document and Classification | QQ-C-576 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | COPPER ALLOY OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.640 INCHES NOMINAL IN |
| Thickness | 0.032 INCHES NOMINAL 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 |
|---|---|
| 39461-4PC12 | Eaton Aerospace, Llc Dba Jackson South (USA) |
| 3435A4PC23 | Amz Alabama Inc. (USA) |
| 39461-4PC23 | Eaton Aerospace, Llc Dba Jackson South (USA) |
| 65171-1PC86 | Eaton Aerospace, Llc Dba Jackson South (USA) |
| 3435A11PC23 | Amz Alabama Inc. (USA) |
| 39461-1PC23 | Eaton Aerospace, Llc Dba Jackson South (USA) |
| 24X25 | Eaton Aerospace, Llc Dba Jackson South (USA) |
| 39461-3PC12 | Eaton Aerospace, Llc Dba Jackson South (USA) |
| 39461-2PC23 | Eaton Aerospace, Llc Dba Jackson South (USA) |
| 62271-2PC23 | Eaton Aerospace, Llc Dba Jackson South (USA) |
| 65173PC9 | Eaton Aerospace, Llc Dba Jackson South (USA) |
| 65174-2PC38 | Eaton Aerospace, Llc Dba Jackson South (USA) |
| 3435A4PC23 | Fmc Corp (USA) |
| 3435A11PC23 | Fmc Corp (USA) |
| Reference | Meaning |
|---|---|
| 533539PC23 | 3/2 Design control — primary reference U.S. Government activity |
| 387514PC12 | 3/2 Design control — primary reference U.S. Government activity |
| 533540PC23 | 3/2 Design control — primary reference U.S. Government activity |
| 533547PC23 | 3/2 Design control — primary reference U.S. Government activity |
| 387511PC23 | 3/2 Design control — primary reference U.S. Government activity |
| 3435A11PC23 | 3/2 Design control — primary reference U.S. Government activity |
| 387514PC23 | 3/2 Design control — primary reference U.S. Government activity |
| 564-2200-936202PC23 | 3/2 Design control — primary reference U.S. Government activity |
| 3435A4PC23 | 3/2 Design control — primary reference U.S. Government activity |
| 2100-3127769PC86 | 3/2 Design control — primary reference U.S. Government activity |
| 387513PC12 | 3/2 Design control — primary reference U.S. Government activity |
| 2100-1464631PC38 | 3/2 Design control — primary reference U.S. Government activity |
| 387512PC23 | 3/2 Design control — primary reference U.S. Government activity |
| 2100-1464632PC9 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-00-256-3430 is a Washer,flat, manufactured by Eaton Aerospace, Llc Dba Jackson South, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-256-3430 has 14 manufacturer part numbers on file: 39461-4PC12 (Eaton Aerospace, Llc Dba Jackson South), 3435A4PC23 (Amz Alabama Inc.), 39461-4PC23 (Eaton Aerospace, Llc Dba Jackson South), 65171-1PC86 (Eaton Aerospace, Llc Dba Jackson South), 3435A11PC23 (Amz Alabama Inc.) and 9 more.
Key specifications for 39461-4PC12: Overall Diameter: 1.000 INCHES NOMINAL IN; Material Document and Classification: QQ-C-576 FED SPEC 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.