The Washer,flat, cataloged under National Stock Number 5310-01-112-3628, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Curtiss-Wright Controls Integrated Sensing, Inc.. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-112-3628 |
| Primary Part Number | 19017831 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Curtiss-Wright Controls Integrated Sensing, Inc. |
| Status | ACTIVE |
| Surface Treatment Document and Classification | KES-0150 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Overall Diameter | 0.231 INCHES MINIMUM AND 0.235 INCHES MAXIMUM IN |
| Material Document and Classification | AMS5640 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Surface Treatment | PASSIVATE OVERALL |
| Peripheral Shape Style | ROUND |
| Material | STEEL CORROSION RESISTING OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.125 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN |
| Thickness | 0.013 INCHES MINIMUM AND 0.017 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 |
|---|---|
| 19017831 PRIMARY | Curtiss-Wright Controls Integrated Sensing, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 17831 | 5/9 Secondary reference Curtiss-Wright Controls Integrated Sensing, Inc. |
NSN 5310-01-112-3628 is a Washer,flat, manufactured by Curtiss-Wright Controls Integrated Sensing, Inc., classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-112-3628 has 1 manufacturer part number on file: 19017831 (Curtiss-Wright Controls Integrated Sensing, Inc.).
2 possible matches (shared part number, not a government interchangeability claim): 8415-01-475-2450, 6515-01-590-3235. Verify interchangeability with system specifications before substitution.
Key specifications for 19017831: Surface Treatment Document and Classification: KES-0150 MFR REF SINGLE TREATMENT RESPONSE OVERALL; Overall Diameter: 0.231 INCHES MINIMUM AND 0.235 INCHES MAXIMUM IN; Material Document and Classification: AMS5640 ASSN STD 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.