The Washer,flat, cataloged under National Stock Number 5310-01-397-3420, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S. Government technical data includes 10 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-397-3420 |
| Primary Part Number | 15607MP |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-35C FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Overall Diameter | 0.750 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN |
| Material Document and Classification | MIL-A-5059 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Surface Treatment | PASSIVATE OVERALL |
| Peripheral Shape Style | ROUND |
| Material | STEEL COMP 301 OR STEEL COMP 302 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.626 INCHES MINIMUM AND 0.631 INCHES MAXIMUM IN |
| Thickness | 0.015 INCHES MINIMUM AND 0.025 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 |
|---|---|
| 15607MP PRIMARY | Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S (USA) |
NSN 5310-01-397-3420 is a Washer,flat, manufactured by Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-397-3420 has 1 manufacturer part number on file: 15607MP (Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S).
Key specifications for 15607MP: Surface Treatment Document and Classification: QQ-P-35C FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Overall Diameter: 0.750 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN; Material Document and Classification: MIL-A-5059 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: RECTANGULAR. 10 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.