The Washer,flat, cataloged under National Stock Number 5310-01-484-5976, 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 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-01-484-5976 |
| Primary Part Number | S8157N40-010 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Honeywell International Inc. Div Aerospace - Torrance |
| Status | ACTIVE |
| Surface Finish | 125.0 MICROINCHES ALL SURFACES |
| Overall Diameter | 0.720 INCHES MINIMUM AND 0.780 INCHES MAXIMUM IN |
| Material Document and Classification | MIL-S-6721,TYPE 321 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5059,TYPE 301,TYPE 302,TYPE 316 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-7720,TYPE 303 MIL SPEC 3RD MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | STEEL COMP 321 OR STEEL COMP 316 OR STEEL COMP 302 OR STEEL COMP 301 OR STEEL COMP 303 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.318 INCHES MINIMUM AND 0.338 INCHES MAXIMUM IN |
| Thickness | 0.010 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 |
|---|---|
| S8157N40-010 | Honeywell International, Inc Div Aerospace-Tucson (USA) |
| S8157N40-010 PRIMARY | Honeywell International Inc. Div Aerospace - Torrance (USA) |
| Reference | Meaning |
|---|---|
| S8157 | D/9 Drawing number reference only Honeywell International, Inc Div Aerospace-Tucson |
NSN 5310-01-484-5976 is a Washer,flat, manufactured by Honeywell International Inc. Div Aerospace - Torrance, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-484-5976 has 2 manufacturer part numbers on file: S8157N40-010 (Honeywell International, Inc Div Aerospace-Tucson), S8157N40-010 (Honeywell International Inc. Div Aerospace - Torrance).
Key specifications for S8157N40-010: Surface Finish: 125.0 MICROINCHES ALL SURFACES; Overall Diameter: 0.720 INCHES MINIMUM AND 0.780 INCHES MAXIMUM IN; Material Document and Classification: MIL-S-6721,TYPE 321 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5059,TYPE 301,TYPE 302,TYPE 316 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-7720,TYPE 303 MIL SPEC 3RD MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: RECTANGULAR. 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.