The Washer,flat, cataloged under National Stock Number 5310-01-217-6004, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Ontic Engineering & Manufacturing, Inc Dba Ontic Us. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-217-6004 |
| Primary Part Number | 3123024-35 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Ontic Engineering & Manufacturing, Inc Dba Ontic Us |
| Status | ACTIVE |
| Overall Diameter | 0.465 INCHES MINIMUM AND 0.475 INCHES MAXIMUM IN |
| Material Document and Classification | MIL-S-5059A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL A |
| Cross-Sectional Shape Style | RECTANGULAR |
| Surface Treatment | PASSIVATE OVERALL |
| Peripheral Shape Style | ROUND |
| Material | STEEL COMP 302 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.253 INCHES MINIMUM AND 0.263 INCHES MAXIMUM IN |
| Thickness | 0.0225 INCHES MINIMUM AND 0.0275 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 |
|---|---|
| 3123024-35 | Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) (USA) |
| 3123024-35 PRIMARY | Ontic Engineering & Manufacturing, Inc Dba Ontic Us (USA) |
| Reference | Meaning |
|---|---|
| 3123024-35 | 5/9 Secondary reference Allied-Signal Inc Dba Allied-Signal Aerospace Co Electrodynamics Div |
NSN 5310-01-217-6004 is a Washer,flat, manufactured by Ontic Engineering & Manufacturing, Inc Dba Ontic Us, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-217-6004 has 2 manufacturer part numbers on file: 3123024-35 (Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road)), 3123024-35 (Ontic Engineering & Manufacturing, Inc Dba Ontic Us).
Key specifications for 3123024-35: Overall Diameter: 0.465 INCHES MINIMUM AND 0.475 INCHES MAXIMUM IN; Material Document and Classification: MIL-S-5059A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL A; Cross-Sectional Shape Style: RECTANGULAR; Surface Treatment: PASSIVATE OVERALL. 9 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.