The Washer,flat, cataloged under National Stock Number 5310-00-003-9458, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Kaydon Custom Filtration Corporation. Government technical data includes 8 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5310-00-003-9458 |
| Primary Part Number | 13N08 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Kaydon Custom Filtration Corporation |
| Status | ACTIVE |
| Overall Diameter | 4.250 INCHES NOMINAL IN |
| Material Document and Classification | 460,FSCM 03938 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | WOOL OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 3.000 INCHES NOMINAL IN |
| Thickness | 0.085 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 |
|---|---|
| 13N08 | Kaydon Custom Filtration Corporation (USA) |
| Reference | Meaning |
|---|---|
| 13N08 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 13N08 | 3/9 Design control — primary reference Kaydon Corporation Dba Kaydon Filtration Group |
| 1344-65 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5310-00-003-9458 is a Washer,flat, manufactured by Kaydon Custom Filtration Corporation, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-003-9458 has 1 manufacturer part number on file: 13N08 (Kaydon Custom Filtration Corporation).
1 possible match (shared part number, not a government interchangeability claim): 3431-00-758-1494. Verify interchangeability with system specifications before substitution.
Key specifications for 13N08: Overall Diameter: 4.250 INCHES NOMINAL IN; Material Document and Classification: 460,FSCM 03938 MFR REF 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.