The Washer,flat, cataloged under National Stock Number 5310-01-062-4820, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Rosemount Inc Dba Fisher Rosemount Service and Support. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5310-01-062-4820 |
| Primary Part Number | C10347-0133-0205 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Rosemount Inc Dba Fisher Rosemount Service and Support |
| Status | ACTIVE |
| Overall Diameter | 0.375 INCHES NOMINAL IN |
| Material Document and Classification | MIL-M-20693,TY 1 MIL SPEC 1ST MATERIAL RESPONSE OR L-P-410 FED SPEC 2ND MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | PLASTIC POLYHEXAMETHYLENE AMIDE OR PLASTIC POLYHEXAMETHYLENE ADIPAMIDE OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.141 INCHES NOMINAL IN |
| Thickness | 0.031 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 |
|---|---|
| C10347-0133-0205 PRIMARY | Rosemount Inc Dba Fisher Rosemount Service and Support (USA) |
| Reference | Meaning |
|---|---|
| 5610-12-031 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 5310-01-062-4820 is a Washer,flat, manufactured by Rosemount Inc Dba Fisher Rosemount Service and Support, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-062-4820 has 1 manufacturer part number on file: C10347-0133-0205 (Rosemount Inc Dba Fisher Rosemount Service and Support).
1 possible match (shared part number, not a government interchangeability claim): 5970-01-415-7887. Verify interchangeability with system specifications before substitution.
Key specifications for C10347-0133-0205: Overall Diameter: 0.375 INCHES NOMINAL IN; Material Document and Classification: MIL-M-20693,TY 1 MIL SPEC 1ST MATERIAL RESPONSE OR L-P-410 FED SPEC 2ND 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.