The Washer,lock, cataloged under National Stock Number 5310-01-411-5889, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Engineered Coil Company Dba Engineered Coil Co Div Drs Marlo Coil. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers 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 | 5310-01-411-5889 |
| Primary Part Number | 13-170-026 |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Engineered Coil Company Dba Engineered Coil Co Div Drs Marlo Coil |
| Status | ACTIVE |
| Style Designator | SPLIT HELICAL-RIGHT HAND |
| Outside Diameter | 0.334 INCHES MAXIMUM IN |
| Material Thickness | 0.047 INCHES MINIMUM IN |
| Material | STEEL COMP 304 OVERALL |
| Hole Diameter | 0.193 INCHES MINIMUM AND 0.200 INCHES MAXIMUM 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 |
|---|---|
| 13-170-026 PRIMARY | Engineered Coil Company Dba Engineered Coil Co Div Drs Marlo Coil (USA) |
| 13-170-026 | Lynn Electronics Llc (USA) |
| 1171059 | Fastenal Co (USA) |
| 1070-00-D ITEM 30 | Engineered Coil Company Dba Engineered Coil Co Div Drs Marlo Coil (USA) |
NSN 5310-01-411-5889 is a Washer,lock, manufactured by Engineered Coil Company Dba Engineered Coil Co Div Drs Marlo Coil, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-411-5889 has 4 manufacturer part numbers on file: 13-170-026 (Engineered Coil Company Dba Engineered Coil Co Div Drs Marlo Coil), 13-170-026 (Lynn Electronics Llc), 1171059 (Fastenal Co), 1070-00-D ITEM 30 (Engineered Coil Company Dba Engineered Coil Co Div Drs Marlo Coil).
1 possible match (shared part number, not a government interchangeability claim): 5310-01-553-0895. Verify interchangeability with system specifications before substitution.
Key specifications for 13-170-026: Style Designator: SPLIT HELICAL-RIGHT HAND; Outside Diameter: 0.334 INCHES MAXIMUM IN; Material Thickness: 0.047 INCHES MINIMUM IN; Material: STEEL COMP 304 OVERALL. 5 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.