The Washer,flat, cataloged under National Stock Number 5310-01-277-4365, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Honeywell Intl Inc Defense Avionics Systems Former Test Systems Div. 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 | 5310-01-277-4365 |
| Primary Part Number | 6414966-1 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Honeywell Intl Inc Defense Avionics Systems Former Test Systems Div |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-STD-171,FINISH 5.4.1 MIL STD SINGLE TREATMENT RESPONSE OVERALL |
| Overall Diameter | 0.560 INCHES NOMINAL IN |
| Material Document and Classification | QQ-S-763,COND ANL CF FED SPEC ALL MATERIAL RESPONSES OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Surface Treatment | PASSIVATE OVERALL |
| Peripheral Shape Style | ROUND |
| Material | STEEL COMP 302 OR STEEL COMP 304 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.155 INCHES MINIMUM AND 0.159 INCHES MAXIMUM IN |
| Thickness | 0.093 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 |
|---|---|
| 6414966-1 PRIMARY | Honeywell Intl Inc Defense Avionics Systems Former Test Systems Div (USA) |
NSN 5310-01-277-4365 is a Washer,flat, manufactured by Honeywell Intl Inc Defense Avionics Systems Former Test Systems Div, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-277-4365 has 1 manufacturer part number on file: 6414966-1 (Honeywell Intl Inc Defense Avionics Systems Former Test Systems Div).
Key specifications for 6414966-1: Surface Treatment Document and Classification: MIL-STD-171,FINISH 5.4.1 MIL STD SINGLE TREATMENT RESPONSE OVERALL; Overall Diameter: 0.560 INCHES NOMINAL IN; Material Document and Classification: QQ-S-763,COND ANL CF FED SPEC ALL MATERIAL RESPONSES 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.