The Washer,flat, cataloged under National Stock Number 5310-01-020-6915, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Honeywell International Inc. Div Aerospace - Torrance. Government technical data includes 8 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-020-6915 |
| Primary Part Number | S8157DU311-020 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Honeywell International Inc. Div Aerospace - Torrance |
| Status | ACTIVE |
| Overall Diameter | 0.660 INCHES MINIMUM AND 0.680 INCHES MAXIMUM IN |
| Material Document and Classification | 4-10L 18873 /ARMLON/ MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | PLASTIC OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.325 INCHES MINIMUM AND 0.330 INCHES MAXIMUM IN |
| Thickness | 0.018 INCHES MINIMUM AND 0.022 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 |
|---|---|
| S8157DU311-020 PRIMARY | Honeywell International Inc. Div Aerospace - Torrance (USA) |
| S8157DU311-020 | Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) (USA) |
| Reference | Meaning |
|---|---|
| S8157CK311-020 | 5/9 Secondary reference U.S. Government activity |
| S8157CK311-020 | 5/9 Secondary reference Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) |
| S8157DU311-020 | 5/9 Secondary reference U.S. Government activity |
| S8157CK311-020 | 5/9 Secondary reference Honeywell International Inc. Div Aerospace - Torrance |
NSN 5310-01-020-6915 is a Washer,flat, manufactured by Honeywell International Inc. Div Aerospace - Torrance, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-020-6915 has 2 manufacturer part numbers on file: S8157DU311-020 (Honeywell International Inc. Div Aerospace - Torrance), S8157DU311-020 (Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road)).
Key specifications for S8157DU311-020: Overall Diameter: 0.660 INCHES MINIMUM AND 0.680 INCHES MAXIMUM IN; Material Document and Classification: 4-10L 18873 /ARMLON/ MFR REF SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: RECTANGULAR; Peripheral Shape Style: ROUND. 8 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.