The Washer,flat, cataloged under National Stock Number 5310-01-689-5870, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Schutt Industries of Clintonville, Wis., Inc. Div Schutt Industries of Clintonville, Wi Inc.. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 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 | 5310-01-689-5870 |
| Primary Part Number | 37RWSA8Y |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Schutt Industries of Clintonville, Wis., Inc. Div Schutt Industries of Clintonville, Wi Inc. |
| Status | ACTIVE |
| Overall Diameter | 0.81 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | STEEL COMP 8 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.41 INCHES NOMINAL IN |
| Thickness | 0.06 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 |
|---|---|
| 37RWSA8Y-MAGNI | Schutt Industries of Clintonville, Wis., Inc. Div Schutt Industries of Clintonville, Wi Inc. (USA) |
| 37RWSA8Y PRIMARY | Schutt Industries of Clintonville, Wis., Inc. Div Schutt Industries of Clintonville, Wi Inc. (USA) |
| 37RWSA8Y | Ziegler Bolt & Parts Co (USA) |
NSN 5310-01-689-5870 is a Washer,flat, manufactured by Schutt Industries of Clintonville, Wis., Inc. Div Schutt Industries of Clintonville, Wi Inc., classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-689-5870 has 3 manufacturer part numbers on file: 37RWSA8Y-MAGNI (Schutt Industries of Clintonville, Wis., Inc. Div Schutt Industries of Clintonville, Wi Inc.), 37RWSA8Y (Schutt Industries of Clintonville, Wis., Inc. Div Schutt Industries of Clintonville, Wi Inc.), 37RWSA8Y (Ziegler Bolt & Parts Co).
1 possible match (shared part number, not a government interchangeability claim): 5310-01-705-3392. Verify interchangeability with system specifications before substitution.
Key specifications for 37RWSA8Y: Overall Diameter: 0.81 INCHES NOMINAL IN; Cross-Sectional Shape Style: RECTANGULAR; Peripheral Shape Style: ROUND; Part Name Assigned by Controlling Agency: FLAT WASHER, 3/8 ID. 7 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.