The Washer,lock, cataloged under National Stock Number 5310-01-353-6722, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Advanced Conversion Technology Inc Div Advanced Conversion Technology. Government technical data includes 6 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 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 | 5310-01-353-6722 |
| Primary Part Number | 20841-1 |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Advanced Conversion Technology Inc Div Advanced Conversion Technology |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Style Designator | SPLIT HELICAL-RIGHT HAND |
| Outside Diameter | 0.140 INCHES NOMINAL IN |
| Material Thickness | 0.020 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| Hole Diameter | 0.080 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 |
|---|---|
| 20841-1 PRIMARY | Advanced Conversion Technology Inc Div Advanced Conversion Technology (USA) |
NSN 5310-01-353-6722 is a Washer,lock, manufactured by Advanced Conversion Technology Inc Div Advanced Conversion Technology, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-353-6722 has 1 manufacturer part number on file: 20841-1 (Advanced Conversion Technology Inc Div Advanced Conversion Technology).
1 possible match (shared part number, not a government interchangeability claim): 6515-01-682-3475. Verify interchangeability with system specifications before substitution.
Key specifications for 20841-1: Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Style Designator: SPLIT HELICAL-RIGHT HAND; Outside Diameter: 0.140 INCHES NOMINAL IN; Material Thickness: 0.020 INCHES NOMINAL IN. 6 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.