The Washer,flat, cataloged under National Stock Number 5310-00-555-6887, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Beaver Aerospace & Defense, Inc.. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-00-555-6887 |
| Primary Part Number | B1008-12 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Beaver Aerospace & Defense, Inc. |
| Status | ACTIVE |
| Surface Finish | 100.0 MICROINCHES ALL SURFACES |
| Overall Diameter | 2.370 INCHES NOMINAL IN |
| Hardness Rating | 32.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM |
| Material Document and Classification | MIL-S-5626 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | STEEL COMP 4140 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 1.368 INCHES NOMINAL IN |
| Thickness | 0.127 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 |
|---|---|
| B1008-12 PRIMARY | Beaver Aerospace & Defense, Inc. (USA) |
| Reference | Meaning |
|---|---|
| B1008-12 | 3/9 Design control — primary reference Beaver Precision Products Inc |
NSN 5310-00-555-6887 is a Washer,flat, manufactured by Beaver Aerospace & Defense, Inc., classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-555-6887 has 1 manufacturer part number on file: B1008-12 (Beaver Aerospace & Defense, Inc.).
Key specifications for B1008-12: Surface Finish: 100.0 MICROINCHES ALL SURFACES; Overall Diameter: 2.370 INCHES NOMINAL IN; Hardness Rating: 32.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM; Material Document and Classification: MIL-S-5626 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL. 10 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.