The Washer,concave, cataloged under National Stock Number 5310-01-105-1867, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Monadnock Company, the Dba Lisi Aerospace. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-105-1867 |
| Primary Part Number | 942008-3 |
| Item Name | Washer,concave |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Monadnock Company, the Dba Lisi Aerospace |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES OUTER |
| Surface Treatment Document and Classification | AMS 2416 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Radius | 0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN |
| Hardness Rating | 40.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM |
| Style Designator | CONCAVE |
| Material Document and Classification | AMS 5528 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.460 INCHES NOMINAL IN |
| Material Thickness | 0.065 INCHES NOMINAL IN |
| Surface Treatment | NICKEL AND CADMIUM OVERALL |
| Minimum Tensile Strength | 180000 POUNDS PER SQUARE INCH LBS |
| Material | STEEL COMP 631 OVERALL |
| Hole Diameter | 0.300 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 |
|---|---|
| K29913-3 | Howmet Global Fastening Systems Inc (USA) |
| 942008-3 PRIMARY | Monadnock Company, the Dba Lisi Aerospace (USA) |
| BACW10CA3CC | Boeing Defence Australia Ltd Div Defense, Space & Security (AUS) |
| 70191-3 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| BACW10CA3CC | Boeing Defence Australia Ltd (AUS) |
| Reference | Meaning |
|---|---|
| BACW10CA3CC | 5/2 Secondary reference U.S. Government activity |
NSN 5310-01-105-1867 is a Washer,concave, manufactured by Monadnock Company, the Dba Lisi Aerospace, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-105-1867 has 5 manufacturer part numbers on file: K29913-3 (Howmet Global Fastening Systems Inc), 942008-3 (Monadnock Company, the Dba Lisi Aerospace), BACW10CA3CC (Boeing Defence Australia Ltd Div Defense, Space & Security), 70191-3 (Sps Technologies, Llc Dba PB Fasteners), BACW10CA3CC (Boeing Defence Australia Ltd).
1 possible match (shared part number, not a government interchangeability claim): 5310-01-669-3897. Verify interchangeability with system specifications before substitution.
Key specifications for 942008-3: Surface Finish: 32.0 MICROINCHES OUTER; Surface Treatment Document and Classification: AMS 2416 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Radius: 0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN; Hardness Rating: 40.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM. 12 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.