The Washer,flat, cataloged under National Stock Number 5310-01-412-3505, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Brooks Instrument Llc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Washer,flat |
| FSC / FSG | 5310 — Nuts and Washers (FSG 53) |
| Manufacturers | Brooks Instrument Llc (CAGE 4ZW64) |
| Parameter | Value |
|---|---|
| NSN | 5310-01-412-3505 |
| Primary Part Number | J-1110-498 ITEM 4 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Brooks Instrument Llc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| J-1110-498 ITEM 4 PRIMARY | Brooks Instrument Llc (USA) |
| Reference | Meaning |
|---|---|
| J-1110-498 ITEM 4 | 3/9 Design control — primary reference U.S. Government activity |
| 375C080QMA | 5/9 Secondary reference U.S. Government activity |
| 375C076QMA | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5310-01-412-3505 is a Washer,flat, manufactured by Brooks Instrument Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-412-3505 has 1 manufacturer part number on file: J-1110-498 ITEM 4 (Brooks Instrument Llc).
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.