The Washer,flat, cataloged under National Stock Number 5310-01-102-1881, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is C-Way Industries Inc. Government technical data includes 6 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5310-01-102-1881 |
| Primary Part Number | 04100086 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | C-Way Industries Inc |
| Status | ACTIVE |
| Overall Diameter | 1.750 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.375 INCHES NOMINAL 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 |
|---|---|
| 04100086 | C-Way Industries Inc (CAN) |
| Reference | Meaning |
|---|---|
| R18733-7 | 5/2 Secondary reference U.S. Government activity |
| 8227046-01 | 3/2 Design control — primary reference U.S. Government activity |
| 1378AS184-1 | C/1 Advisory reference — outside the item-of-supply concept Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| A04100086 | 5/9 Secondary reference C-Way Industries Inc |
NSN 5310-01-102-1881 is a Washer,flat, manufactured by C-Way Industries Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-102-1881 has 1 manufacturer part number on file: 04100086 (C-Way Industries Inc).
1 possible match (shared part number, not a government interchangeability claim): 5955-01-257-7468. Verify interchangeability with system specifications before substitution.
Key specifications for 04100086: Overall Diameter: 1.750 INCHES NOMINAL IN; Cross-Sectional Shape Style: RECTANGULAR; Peripheral Shape Style: ROUND; Center Hole Shape Style: ROUND. 6 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.