The Washer,flat, cataloged under National Stock Number 5310-01-587-6908, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Anillo Industries Llc. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-587-6908 |
| Primary Part Number | BACW10DS4S |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Anillo Industries Llc |
| Status | ACTIVE |
| 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 |
|---|---|
| BACW10DS4S | Anillo Industries Llc (USA) |
| BACW10DS4S | Sps Technologies, Llc Dba PB Fasteners (USA) |
| BACW10DS4S | Boeing Defence Australia Ltd (AUS) |
| BACW10DS4S | West Coast Lockwasher Co., Inc. Dba West Coast Lockwasher Co Inc Div West Coast Lockwasher (USA) |
| Reference | Meaning |
|---|---|
| BACW10DS4S | 5/9 Secondary reference Mamco Mfg Co Inc |
| BACW10DS4S | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-01-587-6908 is a Washer,flat, manufactured by Anillo Industries Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-587-6908 has 4 manufacturer part numbers on file: BACW10DS4S (Anillo Industries Llc), BACW10DS4S (Sps Technologies, Llc Dba PB Fasteners), BACW10DS4S (Boeing Defence Australia Ltd), BACW10DS4S (West Coast Lockwasher Co., Inc. Dba West Coast Lockwasher Co Inc Div West Coast Lockwasher).
Key specifications for BACW10DS4S: End Item Identification: E3A AIRCRAFT. 0 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.